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Your Vehicle // Porsche // Boxster 986/987/981 (1997-2016) // Boxster 981 S / GTS 3.4L 2012-16

PorscheBoxster 986/987/981 (1997-2016)Boxster 981 S / GTS 3.4L 2012-16Suspension & Axle

Wheel Hub / Carrier

Titanium wheel bolt replacement (+15mm longer) stud set with black capless nut for modern Porsche

HUBSTUDKIT80B

Product Information

Titanium wheel bolt replacement stud set with black capless nuts.
Set of 20 studs and nuts

These studs replace the wheel bolts.

Studs are 80 mm long, with a 35 mm thread length on the wheel side. Perfect for cars with wheel spacers up to 15mm thick.

These replace factory wheel bolts for a much easier wheel installation and less wear on your wheel hubs. The bullet nose further makes for faster wheel changes, and a great look

Fits
Porsche 986 Boxster
Porsche 987 Boxster and Cayman
Porsche 996
Porsche 997
Porsche 991.1 & 991.2
Porsche 718 Boxster and Cayman
Porsche 992

These studs are made from Ti-6AL-4V alloy for extreme strength, and excellent rust
and corrosion resistance. Significantly lighter and stronger than steel, Ti6Al4V is ideal for
rotating parts. The studs are also vacuum coated for increased hardness and wear
resistance, and a sensational aspect
The bullet nose further makes for faster wheel changes, and a great look.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

HUBSTUDKIT80B

99636120300

99636120301

99636120302

99736120301

99736120302

WHT006978

99636120390

99636198000

99736198007

WHT004676A

HUBSTUDKIT80C

HUBSTUDKIT65B

HUBSTUDKIT65C

N0201121

LS06

LS07

HUBSTUDKIT

The product you are viewing cross references to these numbers

Titanium wheel bolt replacement (+15mm longer) stud set with chrome capless nut for modern Porsche

HUBSTUDKIT80C

Product Information

Titanium wheel bolt replacement stud set with chrome capless nuts.
Set of 20 studs and nuts

These studs replace the wheel bolts.

Studs are 80 mm long, with a 35 mm thread length on the wheel side. Perfect for cars with wheel spacers up to 15mm thick.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

HUBSTUDKIT80C

99636120300

99636120301

99636120302

99736120301

99736120302

WHT006978

99636120390

99636198000

99736198007

WHT004676A

HUBSTUDKIT65B

HUBSTUDKIT65C

HUBSTUDKIT

N0201121

LS06

LS07

The product you are viewing cross references to these numbers

Titanium wheel bolt replacement stud set with black capless nut for modern Porsche

HUBSTUDKIT65B

Product Information

Titanium wheel bolt replacement stud set with black capless nuts.
Set of 20 studs and nuts

These studs replace the wheel bolts.

Studs are 65 mm long, with a 35 mm thread length on the wheel side.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

HUBSTUDKIT65B

99636120300

99636120301

99636120302

99736120301

99736120302

The product you are viewing cross references to these numbers

Titanium wheel bolt replacement stud set with chrome capless nut for modern Porsche

HUBSTUDKIT65C

Product Information

Titanium wheel bolt replacement stud set with chrome capless nuts.
Set of 20 studs and nuts

These studs replace the wheel bolts.

Studs are 65 mm long, with a 35 mm thread length on the wheel side.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

HUBSTUDKIT65C

99636120300

99636120301

99636120302

99736120301

99736120302

The product you are viewing cross references to these numbers

Wheel Bearing and Hub Kit. Porsche 986 / 987 / 981 / 982 / 996 / 997 / 991 / 992

99134160503KIT

Product Information

This Porsche wheel bearing and hub kit brings together a wheel bearing, wheel hub and associated spacer and fixing components for hub and bearing renewal. The components are supplied together for the specified Porsche applications.

Fits:

Porsche Boxster S 986 3.2L 1999–02
Porsche Boxster S 986 3.2L 2003–04
Porsche Boxster 987 2.7L 2005–08/08
Porsche Boxster 987 S 3.2/3.4L 2005–08/08
Porsche Boxster 987 MKII 2.9L 2009–12
Porsche Boxster S 987 MKII 3.4L 2009–12
Porsche Boxster 981 2.7L 2012–16
Porsche Boxster 981 S / GTS 3.4L 2012–16
Porsche Boxster 718 2.0L Manual (300 Bhp) 2017>>
Porsche Boxster 718 2.0L PDK (300 Bhp) 2017>>
Porsche Boxster S 718 2.5L Manual (350 Bhp) 05/2017>>
Porsche Boxster S 718 2.5L PDK (350 Bhp) 05/2017>>
Porsche Boxster T 718 2.0L Manual (300 Bhp) 01/2019>>
Porsche Boxster T 718 2.0L PDK (300 Bhp) 01/2019>>
Porsche Boxster GTS 718 2.5L Manual (365 Bhp) 05/2017>>
Porsche Boxster GTS 718 2.5L PDK (365 Bhp) 05/2017>>
Porsche Boxster GTS 718 4.0L Manual (400 Bhp) 01/2019>>
Porsche Boxster GTS 718 4.0L PDK (400 Bhp) 01/2019>>
Porsche 996 C4S 3.6L 09/01–2005
Porsche 996 TURBO 2000–05
Porsche 996 GT3 MKI 1999–02
Porsche 996 GT3 MKII 2003>>
Porsche 997 MK1 Carrera 2 3.6L 2005–08
Porsche 997 MK1 Carrera 2S 3.8L 2005–08
Porsche 997 MK1 Carrera 4 3.6L 2005–08
Porsche 997 MK1 Carrera 4S 3.8L 2005–08
Porsche 997 MK1 TURBO 2007–09
Porsche 997 MK1 GT3 / GT3 RS 2007–09
Porsche 997 MK1 GT2 2007–09
Porsche 997 MKII Carrera C2 3.6L 2009–12
Porsche 997 MKII Carrera C4 3.6L 2009–12
Porsche 997 MKII Carrera C2S 3.8L 2009–12
Porsche 997 MKII Carrera C4S 3.8L 2009–12
Porsche 997 MKII GT3 / GT3 RS 2010–11
Porsche 997 MKII Turbo 2010–13
Porsche 991.1 Carrera C2 3.4L (350 Bhp) 2012–16
Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012–16
Porsche 991.1 Carrera C4 3.4L (350 Bhp) 2012–16
Porsche 991.1 Carrera C4S / GTS 3.8L (400/430 Bhp) 2012–16
Porsche 991.1 Turbo 3.8L (520 Bhp) 2014–16
Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014–16
Porsche 991.2 Carrera 2 3.0L (370 Bhp) 2016–19
Porsche 991.2 Carrera 2S / GTS 3.0L (420/450 Bhp) 2016–19
Porsche 991.2 Carrera 4 3.0L (370 Bhp) 2016–19
Porsche 991.2 Carrera 4S / GTS 3.0L (420/450 Bhp) 2016–19
Porsche 991.2 Cabriolet 2 3.0L (370 Bhp) 2016–19
Porsche 991.2 Cabriolet 2S / GTS 3.0L (420/450 Bhp) 2016–19
Porsche 991.2 Cabriolet 4 3.0L (370 Bhp) 2016–19
Porsche 991.2 Cabriolet 4S / GTS 3.0L (420/450 Bhp) 2016–19
Porsche 991.2 Targa 4 3.0L (370 Bhp) 2016–19
Porsche 991.2 Targa 4S / GTS 3.0L (420/450 Bhp) 2016–19
Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016–19
Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016–19
Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016–19
Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016–19
Porsche 991.2 Speedster 4.0L (510Bhp) 2019
Porsche 992.1 Carrera 2 3.0L 2019–24
Porsche 992.1 Carrera 4 3.0L 2019–24
Porsche 992.1 Carrera 2 Cabriolet 3.0L 2019–24
Porsche 992.1 Carrera 4 Cabriolet 3.0L 2019–24
Porsche 992.1 Carrera 2S / GTS 3.0L 2019–24
Porsche 992.1 Carrera 4S / GTS 3.0L 2019–24
Porsche 992.1 Carrera 2S / GTS Cabriolet 3.0L 2019–24
Porsche 992.1 Carrera 4S / GTS Cabriolet 3.0L 2019–24
Porsche 992.1 Targa 4 3.0L 2020–24
Porsche 992.1 Targa 4S / GTS 3.0L 2020–24
Porsche 992.1 Turbo 3.8L 2020–24
Porsche 992.1 Turbo S 3.8L 2020–24
Porsche 992.1 Turbo Cabriolet 3.8L 2020–24
Porsche 992.1 Turbo S Cabriolet 3.8L 2020–24
Porsche Cayman 2.7L 987C 2006–08
Porsche Cayman S 3.4L 987C 2005–08
Porsche Cayman 2.9L 987C MKII 2009–12
Porsche Cayman S / R 3.4L 987C MKII 2009–12
Porsche Cayman 2.7L 981 2013–16
Porsche Cayman S / GTS 3.4L 981 2013–16
Porsche Cayman 718 2.0L Manual (300 Bhp)
Porsche Cayman 718 2.0L PDK (300 Bhp)
Porsche Cayman S 718 2.5L Manual (350 Bhp)
Porsche Cayman S 718 2.5L PDK (350 Bhp)
Porsche Cayman T 718 2.0L Manual (300 Bhp)
Porsche Cayman T 718 2.0L PDK (300 Bhp)
Porsche Cayman GTS 718 2.5L Manual (365 Bhp)
Porsche Cayman GTS 718 2.5L PDK (365 Bhp)
Porsche Cayman GTS 718 4.0L Manual (400 Bhp)
Porsche Cayman GTS 718 4.0L PDK (400 Bhp)

Diagram Ref No 2, 5, 6, 7, 8, 9

Check fitment for your specific vehicle (model, year, engine) before ordering. Confirm the axle position and wheel fixing arrangement against your vehicle before fitting.

What Is This Part?
This is a kit of components for renewing the wheel bearing and front hub together, rather than replacing the bearing alone. It combines the bearing and hub with a wheel-carrier-to-hub spacer, lock nut, four hub bolts and an additional component referenced below. These parts belong to the wheel-end assembly, where the rotating hub is supported within the wheel carrier. The kit contents should be checked against the repair requirements for your particular vehicle.

What Does This Part Do?

Supports wheel rotation: The bearing supports the rotating hub within the wheel-end assembly.
Provides the wheel mounting: The hub forms the central mounting interface for the wheel and brake disc.
Renews associated hardware: The supplied spacer, nut and bolts accompany the bearing and hub during assembly renewal.
Brings related parts together: The kit bundles the listed components for the same repair, allowing their fit and condition to be addressed together.

Why Replace This Part?
Replacement may be appropriate when inspection confirms bearing wear or damage together with deterioration of the hub or its bearing seating surface. Renewing the bearing alone may leave an underlying problem unresolved if the adjoining housing or hub fit is compromised. SKF recommends checking the housing and axle whenever wheel bearings are changed.

Contamination, damaged sealing surfaces and incorrect installation can also contribute to premature bearing failure. If a previous replacement has become noisy again, investigate the mating surfaces and fitting method before installing another bearing.

When to Replace This Part?

Confirmed bearing noise: Growling or rumbling traced to the wheel bearing during diagnosis, rather than assumed from where the sound seems to originate.
Excessive movement: Measured hub or bearing endplay outside the vehicle manufacturer's specification. Wheel movement should prompt inspection of the complete assembly before selecting replacement parts.
Damaged hub seating: Wear, scoring or corrosion affecting the bearing fit.
Distorted mounting surfaces: A damaged hub face or mounting area identified during inspection.
Deteriorated fixings: Damaged threads, corrosion or other defects preventing correct assembly.

Where Is This Part Fitted?
Location: At the front wheel hub assembly on the applicable vehicle. The supplied front hub works with the wheel bearing at the wheel carrier, with the spacer and fixing components forming part of the associated mounting arrangement.

Technical Details

Wheel bearing: 1 × 9P1407621B.
Front wheel hub: 1 × 9P1407615.
Lock nut: 1 × PAF001784, M 22 X 1,5.
Wheel-carrier-to-hub spacer: 1 × 98633166120.
Wheel carrier hub bolts: 4 × 99921704204, M 8 X 35.
Additional included component: 1 × 99734113100.

Product Summary

Product: Wheel bearing and hub kit.
Assembly: Wheel hub and bearing mounting arrangement.
Contents: One bearing, one hub, one lock nut, one spacer, four hub bolts and retaining bolt.
Purpose: Combined renewal of the bearing, hub and listed associated components following inspection.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99134160503KIT

9P1407621B

99134160503

PAF001784

98633166120

99921704204

99734113100

The product you are viewing cross references to these numbers

Eccentric washer for alignment for Porsche Boxster / Cayman / 911 / Panamera / Taycan

PAF007648

Product Information

Eccentric washer for alignment
for Porsche Boxster / Cayman / 911 / Panamera / Taycan
Sold each.

Fits:
Porsche 911 (993 / 996 / 997 / 991 / 992)
Porsche Boxster (986 / 987 / 981)
Porsche Cayman (987 / 981 / 718)
Porsche Panamera (970)
Porsche Taycan

Alignment eccentric washer, also referred to as a cam adjust arm or control arm adjust cam, is used in the rear suspension of certain Porsche 911, Boxster, Cayman and Panamera models.

Position on Vehicle: Rear suspension — at the rear control arm or track rod mounting point, typically used to adjust alignment of the wheel carrier, track bar or control arm.

Applications: Ideal for when original eccentric bolts or washers are worn, alignment cannot be set correctly, or when replacing control arms/track rods and correct alignment geometry is required.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

PAF007648

99633121900

PAF007648

The product you are viewing cross references to these numbers

Eccentric washer for alignment for Porsche Boxster / Cayman / 911 / Panamera / Taycan

PAF007648/1

Product Information

99633121900

PAF007648

The product you are viewing cross references to these numbers

Over the stud wheel hub cleaner set. Textar

TEX1037

Product Information

Over the stud wheel hub cleaner set. Textar

Cleaning kit for corroded wheel studs & adjacent hub surfaces

Removes dirt & corrosion & prepares surfaces for correct torque application
Ideal for preparing wheels, hubs and brake discs or drums for re-assembly
Suitable for use with power drill or air impact wrench

Kit contains:

Stud cleaner body including velcro pad
Replacement velcro pads x 2
Fine cleaning discs x 5
Coarse cleaning discs x 5

Find out about Textar product verification here

Retaining Bolt For Wheel Hub. Porsche 981 / 987 / 991 / 997

99734113100

Product Information

This Porsche wheel hub retaining bolt forms part of the hub securing arrangement on the applications listed below. Also described as a tension bolt, works with the associated retaining nut in the wheel hub and bearing assembly.

Fits:

Porsche Boxster 987 2.7L 2005–08/08
Porsche Boxster 987 S 3.2/3.4L 2005–08/08
Porsche Boxster 987 MKII 2.9L 2009–12
Porsche Boxster S 987 MKII 3.4L 2009–12
Porsche Boxster 981 2.7L 2012–16
Porsche Boxster 981 S / GTS 3.4L 2012–16
Porsche Boxster 981 Spyder 3.8L 2016
Porsche 997 MK1 Carrera 2 3.6L 2005–08
Porsche 997 MK1 Carrera 2S 3.8L 2005–08
Porsche 997 MK1 Carrera 4 3.6L 2005–08
Porsche 997 MK1 Carrera 4S 3.8L 2005–08
Porsche 997 MK1 TURBO 2007–09
Porsche 997 MK1 GT3 / GT3 RS 2007–09
Porsche 997 MK1 GT2 2007–09
Porsche 997 MKII Carrera C2 3.6L 2009–12
Porsche 997 MKII Carrera C4 3.6L 2009–12
Porsche 997 MKII Carrera C2S 3.8L 2009–12
Porsche 997 MKII Carrera C4S 3.8L 2009–12
Porsche 997 MKII GT3 / GT3 RS 2010–11
Porsche 997 MKII Turbo 2010–13
Porsche 997 MKII GT2 RS 2011–13
Porsche 991.1 Carrera C2 3.4L (350 Bhp) 2012–16
Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012–16
Porsche 991.1 Carrera C4 3.4L (350 Bhp) 2012–16
Porsche 991.1 Carrera C4S / GTS 3.8L (400/430 Bhp) 2012–16
Porsche Cayman 2.7L 987C 2006–08
Porsche Cayman S 3.4L 987C 2005–08
Porsche Cayman 2.9L 987C MKII 2009–12
Porsche Cayman S / R 3.4L 987C MKII 2009–12
Porsche Cayman 2.7L 981 2013–16
Porsche Cayman S / GTS 3.4L 981 2013–16

Diagram Ref No 5

Check fitment for your specific vehicle (model, year, engine) before ordering.

What Is This Part?
The retaining bolt is a securing component within the wheel carrier, wheel bearing and hub assembly. It works with a separate retaining nut to hold the hub assembly together in its intended position. Its condition matters when the hub or bearing is removed, because damaged threads or seating surfaces can prevent correct reassembly. During this work, inspect the bolt alongside the nut and the surrounding components rather than assessing it in isolation.

What Does This Part Do?

Retains the hub assembly: Forms part of the securing arrangement for the wheel hub and bearing.
Works with the retaining nut: Provides the fastening connection used to secure the assembly.
Supports correct reassembly: Sound threads and seating surfaces allow the fixing to be installed according to the applicable workshop procedure.

Why Replace This Part?
Replacement may be needed if inspection finds damaged threads, significant corrosion, distortion or damage caused during removal. These defects can interfere with the bolt seating correctly or with the nut engaging as intended. A seized fixing should also be checked carefully after removal, especially if force or cutting tools were needed to dismantle the assembly.

Wheel bearing or hub replacement provides an opportunity to inspect this bolt, but does not by itself establish that the bolt is defective. Follow the vehicle-specific workshop instructions for fastener reuse, associated nut replacement and tightening procedure; do not assume the same requirements apply to every listed model.

When to Replace This Part?

Damaged threads: The retaining nut cannot engage correctly, or the threads show stripping or cross-threading.
Significant corrosion: Deterioration affects the fixing or its seating surfaces.
Visible damage: The bolt is bent, cracked or marked by removal tools in a way that affects its function.
Poor seating: Inspection confirms that damage to the bolt prevents correct assembly.
Workshop requirement: The applicable repair instructions specify renewal after removal.

Wheel play, vibration or bearing noise requires inspection of the complete hub and bearing assembly; these symptoms do not identify the retaining bolt as the cause on their own.

Where Is This Part Fitted?
Location: At the wheel hub centre, within the wheel carrier and bearing assembly, where it works with the associated retaining nut.

Product Summary

Product: Wheel hub retaining bolt, also described as a tension bolt.
Brand: Porsche.
Part number: 99734113100.
Purpose: Forms part of the wheel hub and bearing securing arrangement.
Repair context: Inspection or renewal during applicable wheel hub and bearing work.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99734113100

99734113100

The product you are viewing cross references to these numbers

6 6 6 6 6 6

Wheel Carrier Front. Porsche 991 / 981 Boxster / 981C Cayman

99134115

Product Information

Wheel Carrier. Front Axle.

Fits:
Porsche 981 Boxster 2012>>
Porsche 981C Cayman 2014>>
Porsche 991.1 Carrera 2012-16
Porsche 991.2 Carrera 2017>> Cars without rear axle steering (I470)

Click 'Zoom in' for large parts diagram.
Diagram ref no 1

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99134115

99134115705

99134115805

99134115704

99134115804

99134115706

99134115806

The product you are viewing cross references to these numbers

4 4 4 4

Wheel Carrier Hub Bolt, M 8 X 35. Porsche 970 / 981 / 987.2 / 991.1 / 997.1 / 997.2 2007-16

99921704204

Product Information

Wheel Carrier Hub Bolt, M 8 X 35.
This Wheel Carrier Hub Bolt is engineered to mount and secure the wheel hub and bearing assembly to the wheel carrier or steering knuckle, ensuring precise wheel alignment and dependable structural strength.
Sold Each.

Fits:

Porsche 970.1 Panamera V6 3.6L 2WD 2009-13
Porsche 970.1 Panamera 4 V6 3.6L 4WD 2009-13
Porsche 970.1 Panamera S V8 4.8L 2009-13
Porsche 970.1 Panamera 4S V8 4.8L 2009-13
Porsche 970.1 Panamera GTS V8 4.8L 2011-13
Porsche 970.1 Panamera Turbo V8 4.8L 2009-13
Porsche 970.1 Panamera Turbo S V8 4.8L 2009-13
Porsche 970.1 Panamera Diesel V6 3.0L 2011-13
Porsche 970.1 Panamera S Hybrid V6 3.0L 2011-13
Porsche 970.2 Panamera V6 3.6L 2WD (310Hp) 2014-16
Porsche 970.2 Panamera 4 V6 3.6L 4WD (310Hp) 2014-16
Porsche 970.2 Panamera S V6 Turbo 3.0L 2WD (420Hp) 2014-16
Porsche 970.2 Panamera S V6 Turbo 3.0L 2WD Executive 2014-16
Porsche 970.2 Panamera 4S V6 Turbo 3.0L 4WD (420Hp) 2014-16
Porsche 970.2 Panamera 4S V6 Turbo 3.0L 4WD Executive 2014-16
Porsche 970.2 Panamera GTS V8 4.8L 4WD (440Hp) 2014-16
Porsche 970.2 Panamera Turbo V8 4.8L (520Hp) 2014-16
Porsche 970.2 Panamera Turbo V8 Executive 2014-16
Porsche 970.2 Panamera Turbo S V8 4.8L 2014-16
Porsche 970.2 Panamera Diesel V6 3.0L (250Hp) 2014-16
Porsche 970.2 Panamera S E-Hybrid V6 3.0L (416Hp) 2014-16
Porsche Boxster 981 2.7L 2012-16
Porsche Boxster 981 S / GTS 3.4L 2012-16
Porsche Cayman 2.7L 981 2013-16
Porsche Cayman S / GTS 3.4L 981 2013-16
Porsche Boxster 987 MKII 2.9L 2009-2012
Porsche Boxster S 987 MKII 3.4L 2009-2012
Porsche Cayman 2.9L 987C MKII 2009-12
Porsche Cayman S / R 3.4L 987C MKII 2009-12
Porsche 991.1 Carrera C2 3.4L (350Bhp) 2012-16
Porsche 991.1 Carrera C2S 3.8L (400Bhp) 2012-16
Porsche 991.1 Carrera C4 3.4L (350Bhp) 2012-16
Porsche 991.1 Carrera C4S 3.8L (400Bhp) 2012-16
Porsche 991.1 Turbo 3.8L (520bhp) 2014-16
Porsche 997 MK1 TURBO 2007-09
Porsche 997 MK1 GT2 2007-09
Porsche 997 MK1 GT3 2007-09
Porsche 997 MKII Carrera C2 3.6L 2009-12
Porsche 997 MKII Carrera C4 3.6L 2009-12
Porsche 997 MKII Carrera C2S 3.8L 2009-12
Porsche 997 MKII Carrera C4S 3.8L 2009-12
Porsche 997 MKII GT3 2010-11
Porsche 997 MKII Turbo 2010-13
Porsche 997 MKII GT2 RS 2011-13

Diagram Ref No 4

What This Product Does:

The bolt helps maintain the alignment and secure mounting of the hub assembly, ensuring the wheel and bearing remain solidly held to the vehicle’s suspension / wheel carrier.

Symptoms Of Failure / Needs Replacement:

Loose hub assembly or play at the wheel bearing / hub interface
Noise (rattling, knocking) from the wheel / suspension area
Abnormal wheel alignment / geometry or uneven tire wear
Bearing / hub damage, because the hub may move relative to its mounting surface under load
Potential safety hazard if the wheel or hub becomes unstable

Why Replacement Matters:

Safety-critical component: Keeps the wheel hub and bearing securely attached to the suspension carrier.
Prevents looseness and wheel wobble: Ensures stability under braking and cornering.
Essential during service: Always replaced when removing the hub or bearing for correct torque retention and clamping force.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99921704204

99921704204

99921704203

99921704209

The product you are viewing cross references to these numbers

Wheel Carrier To Hub Spacer. Porsche 996 / 997 / 991 / Boxster / Cayman

98633166120

Product Information

Wheel Carrier To Hub Spacer.

Fits:
Porsche 996 C4S 2002-05 (FRONT)
Porsche 996 Turbo/GT2 2001-05 (FRONT)
Porsche 996 GT3 1999-05 (FRONT)
Porsche 997 MKI / MKII Carrera 2005-12 (FRONT)
Porsche 997 MKI / MKII Turbo 2009-12 (FRONT)
Porsche 991 Carrera 2012>> (FRONT)
Porsche 991 Turbo 2014>> (FRONT)

Porsche 986 Boxster S 3.2L 2000-04 (FRONT & REAR)
Porsche 987 Boxster MKI & MKII 2005-12 (FRONT & REAR)
Porsche 987C Cayman MKI & MKII 2005-13 (FRONT & REAR)
Porsche 981 Boxster 2012>> (FRONT & REAR)
Porsche 981C Cayman 2013>> (FRONT)

Click 'Zoom in' for large parts diagram.
Diagram ref no 7

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

98633166120

98633166120

The product you are viewing cross references to these numbers

Wheel carrier, Front axle. Porsche 991 / 981 Boxster / 981C Cayman

99134115

Product Information

Front axle wheel carrier, also known as steering knuckle.
Designed for precision and durability, it’s the crucial component that connects your wheel hub, suspension, and steering systems—ensuring smooth steering response and reliable alignment.

Fits:
Porsche 981 Boxster 2012 - 2016
Porsche 981C Cayman 2013 - 2016
Porsche 991.1 Carrera 2012 - 2016
Porsche 991.2 Carrera 2017 - 2019 *Cars without rear axle steering (I470)

Diagram ref no 1

The wheel carrier bears the load of braking, suspension forces, and wheel torque. Any compromise here can affect safety, braking stability, and wheel alignment.

Symptoms of Failure:
•  Uneven or rapid tyre wear
•  Vehicle pulling to one side / poor alignment
•  Clunking or knocking noises over bumps
•  Vibrations in steering wheel
•  ABS / traction control warning lights
•  Braking instability or pulling under braking
•  Visible cracks, bends, or damage after impact

When to Replace:
• After accidents / collisions – especially front-end or wheel area impacts
•  When alignment cannot be corrected despite multiple attempts
•  If cracks, bends, or corrosion are found during inspection
•  When suspension components don’t fit correctly (hub, bearings, ball joints, control arms)

If you experience steering pull, abnormal tyre wear, vibrations, or braking instability, it’s time to have the knuckle inspected.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99134115

99134115705

99134115805

99134115704

99134115804

99134115706

99134115806

The product you are viewing cross references to these numbers

8 8 8 8 8 8 8 8

Wheel carrier, Rear. Porsche 981 Boxster / 981 Cayman

98250505

Product Information

Wheel carrier. Rear Axle.

Fits:
Porsche 981 Boxster 2012-16
Porsche 981C Cayman 2013-16

Diagram ref no 1

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

98250505

982505051J

982505051G

982505051A

98133115707

98133115705

98133115704

98133115703

982505052J

982505052G

982505052A

98133115807

98133115805

98133115804

98133115803

The product you are viewing cross references to these numbers

5 5 5 5 5

Wheel Hub Carrier Front. Porsche 987.1 / 987.2 / 996 / 997.1 / 997.2 / 981 / 991 / 982 / 992

9P1407615

Product Information

Wheel Hub. Front Axle. For cars without central lock.

front

Porsche 986 Boxster S 1997-2004

Porsche 996 C4S / Turbo / GT2 2001-2005
Porsche 996 GT3 / GT3 RS 1999-2005

Porsche 997 C2 / C4 / C2S / C4S / Turbo / GT2 / GT3 2005-2008
Porsche 997.2 C2 / C4 / C2S / C4S / Turbo / GT2 / GT3 2009-2012

Porsche 987.1 Boxster and Cayman 2005 - 2008
Porsche 987.2 Boxster and Cayman 2009 - 2012

Porsche 981 Boxster and Cayman 2012 - 2016
Porsche 981 Spyder 2016

Porsche 982 (718) Boxster and Cayman 2017>>

Porsche 991.1 Carrera / Turbo 2012 - 2016
Porsche 991.2 Carrera / Turbo 2017-2019

Porsche 992.1 Carrera 2019>>
Porsche 992 Turbo 2020>>

Click 'Zoom in' for large parts diagram.
Diagram ref no 9

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

9P1407615

99134160502

99134160500

98633160520

99134160501

99134160503

9P1407615

99734160501

99634160591

The product you are viewing cross references to these numbers

5 5 5 5 5

Wheel Hub Carrier Rear. Porsche 986 / 987.1 / 987.2 / 981 / 982

9P1407615::1

Product Information

Wheel Hub. Rear Axle.

rear

Porsche 986 Boxster S 1997-2004

Porsche 987.1 Boxster and Cayman 2005 - 2008
Porsche 987.2 Boxster and Cayman 2009 - 2012

Porsche 981 Boxster and Cayman 2012 - 2016
Porsche 981 Spyder 2016

Porsche 982 (718) Boxster and Cayman 2017>>

Click 'Zoom in' for large parts diagram.
Diagram ref no 9

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

9P1407615

99134160502

99134160500

98633160520

99134160501

99134160503

9P1407615

99734160501

99634160591

The product you are viewing cross references to these numbers

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About Wheel Hub / Carrier

Porsche Wheel Hub / Wheel Carrier | Design911 Suspension Components for Strength, Alignment & Precision Handling

The wheel hub and wheel carrier are essential components in your Porsche’s suspension and axle system. Together, they form the central mounting point for the wheel, brake disc, and bearing assembly, allowing smooth rotation and precise alignment. The wheel carrier (or knuckle) connects to the suspension arms and steering system, maintaining exact geometry for stability, safety, and control.

At Design911, we offer a comprehensive range of wheel hubs and wheel carriers, designed for performance, accuracy, and durability. Manufactured from high-grade steel or lightweight aluminium alloys, each component ensures optimal strength while keeping unsprung weight low. Whether for servicing, performance tuning, or full restoration, our parts are engineered to maintain the responsive handling and precision your Porsche was built to deliver.

What Do Wheel Hubs and Wheel Carriers Do?

Wheel hubs and carriers form the structural connection between the suspension and the rotating wheel assembly.

Core Functions:
• Support and align the wheel, bearing, and brake disc assembly.
• Maintain correct suspension geometry and camber settings.
• Transmit forces from braking, acceleration, and cornering.
• Ensure smooth wheel rotation with minimal resistance.
• Provide stable mounting points for control arms and steering links.

When in good condition, these components keep your Porsche’s handling precise, ensuring balance, comfort, and safety at every speed.

Why Do Wheel Hubs and Wheel Carriers Fail or Degrade?

These parts are constantly exposed to heavy loads, vibration, and environmental elements — leading to wear or damage over time.

Common Causes of Failure Include:
• Corrosion or rust compromising structural integrity.
• Wear in bearing seating areas causing looseness.
• Cracks or distortion from impact or collision damage.
• Deformation due to over-torqued fasteners or wheel stress.
• Heat transfer from braking leading to material fatigue.

Failure can result in noise, vibration, wheel misalignment, or uneven tyre wear — all of which affect handling and safety.

Why Replace or Upgrade Your Porsche Wheel Hub / Wheel Carrier?

Replacing worn or damaged hubs and carriers restores your Porsche’s suspension geometry, wheel alignment, and overall handling precision. High-performance replacements also improve strength and reduce unsprung weight for enhanced feedback and cornering response.

Key Benefits:
• Restores correct wheel alignment and hub stability.
• Eliminates vibration, noise, and uneven tyre wear.
• Improves steering response and chassis balance.
• Available for front and rear axle configurations.
• Fits Porsche 911, 944, 968, Boxster, Cayman, Panamera, Cayenne, and Macan models.
• Ideal for maintenance, restoration, or performance upgrades.

Design911’s Porsche wheel hubs and wheel carriers combine strength, precision, and reliability — keeping your Porsche stable, smooth, and perfectly aligned on every journey.

Highlights

• Premium Porsche wheel hubs and wheel carriers.
• Precision-machined for suspension geometry and alignment accuracy.
• Constructed from corrosion-resistant steel or lightweight alloy.
• Restores handling precision and ride stability.
• Suitable for both modern and classic Porsche models.
• Perfect for servicing, performance tuning, or full restoration.

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Your Vehicle // Porsche // Boxster 986/987/981 (1997-2016) // Boxster 981 S / GTS 3.4L 2012-16

Wheel Hub / Carrier

Wheel Hub / Carrier