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Your Vehicle  //  Porsche  //  944 (1982-1991)  //  944 Turbo 2.5L 8V 1985-88
Porsche944 (1982-1991)944 Turbo 2.5L 8V 1985-88Gearbox / Transmission

Gasket Sets / Gaskets / Seals / Lock Nuts

Gasket Sets / Gaskets / Seals / Lock Nuts

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DISPLAYING 1 to 9 (of 9 products)
Differential output shaft seal. Porsche 924 / 944 / Boxster / Cayman - 016409399B
3
Differential output shaft seal. Porsche 924 / 944 / Boxster / Cayman
Special Order item
016409399B
Product Information
Product Information
Differential output shaft seal.

Fits:
For cars with manual transmission
Porsche 924 1976-88
Porsche 944 1982-91
Porsche 986 / 987 / 981 / 982 Boxster 1997>>
Porsche 987 / 981 / 982 Cayman 2005>>

Click 'Zoom in' for large parts diagram.
Diagram ref no 4

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Related, superseded, cross reference or alternative numbers for comparison.

016409399B
016409399B

The product you are viewing cross references to these numbers
Differential output shaft seal. Porsche 924 / 944 / Boxster / Cayman 45 x 60 x 8mm - 016409399B, 314096090323, 016409399B, 15195, 190035410, 108768 - V103335
3
Differential output shaft seal. Porsche 924 / 944 / Boxster / Cayman 45 x 60 x 8mm
016409399B/1
Product Information
Product Information

OE Match differential output shaft seal for selected Porsche 924, 944, Boxster and Cayman manual-transmission applications. The supplied diagram specification is 45 x 60 x 8mm.

Fits
For cars with manual transmission

  • Porsche Boxster 986 2.5L 1997-99
  • Porsche Boxster 986 2.7L 1999-02
  • Porsche Boxster S 986 3.2L 1999-02
  • Porsche Boxster 986 2.7L 2003-04
  • 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 944 2.5L 8V 1982-87
  • Porsche 944 2.7L 8V 1988-89
  • Porsche 944S 2.5L 16V 1987-88
  • Porsche 944S2 3.0L 16V 1989-91
  • Porsche 944 Turbo 2.5L 8V 1985-88
  • Porsche 944 Turbo 2.5L 8V 1989-91
  • Porsche 944 Turbo S 2.5L 8V 1988
  • Porsche Cayman S 3.4L 987C 2005-08
  • Porsche Cayman 2.7L 987C 2006-08
  • Porsche 924 2.0L 1976-79
  • Porsche 924 2.0L 1980-85
  • Porsche 924 Turbo 2.0L 1979-81
  • Porsche 924 Turbo 2.0L 1982-84
  • Porsche 924 Carrera GT 2.0L 1981
  • Porsche 924 Carrera GTS 2.0L 1982
  • Porsche 924S 2.5L 1986-87
  • Porsche 924S 2.5L 1988
  • Porsche Boxster 987 MKII 2.9L 2009-12
  • Porsche Boxster S 987 MKII 3.4L 2009-12
  • Porsche Cayman 2.9L 987C MKII 2009-12
  • Porsche Cayman S / R 3.4L 987C MKII 2009-12
  • 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 Cayman GT4 3.8L 2015-16
  • 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 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 Boxster GTS 718 2.5L Manual (365 Bhp) 05/2017>>
  • Porsche Boxster GTS 718 2.5L PDK (365 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 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)


Diagram Ref No 4


What This Product Does
This radial seal retains lubricant where the differential output shaft passes through its housing, forming a sealing interface around the rotating shaft.


Functions

  • Limits lubricant escape at the differential output.
  • Seals the interface between the shaft and housing.


Technical Details

  • Part reference: 016409399B; radial shaft seal, 45 x 60 x 8mm.
  • 986 Boxster diagram applications: G86.00 M481 five-speed manual, 1997–04; differential G86.00/01, 1997–04.
  • 987 Boxster diagram applications: G87.01 I481 five-speed manual, 2005–08; Boxster S G87.20 I480 six-speed manual, 2007–08.
  • 987C.1 Cayman diagram applications: G8701+ PR:481 five-speed manual, 2.7L 2006–08; differential application, 2.7L 2007–08.
  • 987C.1 Cayman six-speed manual diagram application: G8720,G8721+ PR:480, 2006–08.
  • Specified diagram quantities: two seals in the 986 and 987 differential assemblies and the listed 987 Boxster S and 987C.1 six-speed transmission assemblies. This is an assembly requirement, not a statement of pack contents.


Symptoms of Fault

  • Oily deposits around the differential output flange.
  • Lubricant seepage or drops beneath the transmission.
  • A recurring leak associated with a hardened or damaged seal.


Why Replacement Matters

Renewing a leaking output seal addresses lubricant loss at this location. Inspect the shaft sealing surface and surrounding components during the repair, as damage or wear elsewhere can contribute to repeat leakage.


FAQs

  • Will this seal resolve every transmission leak?
    No. Establish where the lubricant is escaping before selecting a replacement.
  • Should sealant be added?
    Use additional sealing compounds only when required by the relevant workshop procedure.
  • Does a matching model name confirm compatibility?
    No. Cross-check reference 016409399B, the gearbox identification and the manual-transmission restriction before fitting.


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

016409399B
016409399B
314096090323
016409399B
15195
190035410
108768

The product you are viewing cross references to these numbers
Gasket for transmission oil pump housing (0.15 mm). Porsche 944 1986-91 Turbo - 016115189
2
Gasket for transmission oil pump housing (0.15 mm). Porsche 944 1986-91 Turbo
Special Order item
016115189
Product Information
Product Information
Gasket for transmission oil pump housing (0.15 mm).

Fits:
Porsche 944 Turbo 1986-91
Only for vehicles with a transmission oil cooler.

Click 'Zoom in' for large parts diagram.
Diagram ref no 16

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

016115189
016115189

The product you are viewing cross references to these numbers
Gasket for transmission oil pump housing (0.20 mm). Porsche 944 1986-91 Turbo - 016115189, 016115189A
2
Gasket for transmission oil pump housing (0.20 mm). Porsche 944 1986-91 Turbo
Special Order item
016115189A
Product Information
Product Information
Gasket for transmission oil pump housing (0.20 mm).

Fits:
Porsche 944 Turbo 1986-91
Only for vehicles with a transmission oil cooler.

Click 'Zoom in' for large parts diagram.
Diagram ref no 16

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

016115189A
016115189
016115189A

The product you are viewing cross references to these numbers
Gearbox Input Seal. Porsche 924S / 944 / 968 - 016311113C, 012311113B
2
Gearbox Input Seal. Porsche 924S / 944 / 968
Special Order item
016311113C::1
Product Information
Product Information
Gearbox Input Seal. 24.9x40x8mm

Fits:
For cars with MANUAL transmission
Porsche 924S 1986-88
Porsche 944 1982-91
Porsche 968 1992-95

Diagram ref no 31

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

016311113C
016311113C
012311113B

The product you are viewing cross references to these numbers
Manual transmission shift shaft seal. Porsche 924 / 928 / 944 - 92830312001
3
Manual transmission shift shaft seal. Porsche 924 / 928 / 944
Special Order item
92830312001
Product Information
Product Information
Manual transmission shift shaft seal.

Fits:
Porsche 924 / 924S 1976-85
Porsche 928 1978-95
Porsche 944 1983-91

Click 'Zoom in' for large parts diagram.
Diagram ref no 22

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

92830312001
92830312001

The product you are viewing cross references to these numbers
Manual transmission shift shaft seal. Porsche 924 / 928 / 944 / 964 / 911 Turbo - 92830312001, 15839
3
Manual transmission shift shaft seal. Porsche 924 / 928 / 944 / 964 / 911 Turbo
92830312001/1
Product Information
Product Information

OE Match manual gearbox selector-shaft seal for the Porsche 924, 928 and 944 applications below. Reference 92830312001 is also identified as a shaft sealing ring in the additional assemblies noted under Technical Details.

Fits

  • Porsche 924 2.0L 1976–79
  • Porsche 924 2.0L 1980–85
  • Porsche 924 Turbo 2.0L 1979–81
  • Porsche 924 Turbo 2.0L 1982–84
  • Porsche 924 Carrera GT 2.0L 1981
  • Porsche 924 Carrera GTS 2.0L 1982
  • Porsche 924S 2.5L 1986–87
  • Porsche 924S 2.5L 1988
  • Porsche 928 4.5L 1978–82
  • Porsche 928S 4.7L 1981–83
  • Porsche 928S2 4.7L 1984–86
  • Porsche 928S4 5.0L 1987–92
  • Porsche 928GT 5.0L 1989–91
  • Porsche 928GTS 5.4L 1992–95
  • Porsche 944 2.5L 8V 1982–87
  • Porsche 944 2.7L 8V 1988–89
  • Porsche 944S 2.5L 16V 1987–88
  • Porsche 944S2 3.0L 16V 1989–91
  • Porsche 944 Turbo 2.5L 8V 1985–88
  • Porsche 944 Turbo 2.5L 8V 1989–91
  • Porsche 944 Turbo S 2.5L 8V 1988


Diagram Ref No 22


What This Product Does
The seal closes the interface around the gearbox selector shaft, helping retain lubricant where the shaft passes through its housing. It is a sealing component, not a replacement for worn selector linkages or internal gearbox mechanisms.


Functions

  • Helps contain gearbox oil around the selector shaft.
  • Renews the sealing interface during leak repairs or transmission refurbishment.


Technical Details

  • Part reference: 92830312001; component identification: shaft sealing ring.
  • 924 four-speed transmission casing, 1976–79: diagram 302-000, item 11; repair-kit diagram 398-000, item 2.
  • 924 manual transmission casing, 1980–85: VQ, VR, UV, MD, ME, MF, MB, MX, 4Q, 5Q and 6Q applications; diagram 302-000, item 31.
  • 924 repair kits, 1980–85: diagram 398-000, items 2 and 11.
  • Additional assembly reference: 964 distributor housing, G64.00/01/02, 1989–94; diagram 302-10, item 14.
  • Additional non-gearbox application: 911 Turbo M506 flatnose front interior panelling assembly, 1988–89; diagram 880-00, item 11, assembly quantity 2.


Symptoms of Fault
Oil dampness around the selector-shaft entry point, persistent seepage or drips beneath the gearbox warrant inspection. Confirm the source, as neighbouring seals and casing joints can produce similar traces.


Why Replacement Matters
Renewing a leaking seal helps address lubricant loss. Inspect the shaft and housing contact surfaces during the repair, since damage or wear can contribute to recurring leaks. OE Match focuses its replacement-parts programme on Porsche applications and original-reference compatibility.


FAQs

Will this resolve difficult gear selection?
Not necessarily. Clutch operation, linkage condition and internal transmission wear require separate diagnosis.

Is additional sealant required?
Use sealant only when the relevant workshop procedure specifies it.



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

92830312001
92830312001
15839

The product you are viewing cross references to these numbers
Transmission case lid seal. Porsche 911 / 912 / 930 / 924 / 944 / 914 - 113301185A, 783.250
2
Transmission case lid seal. Porsche 911 / 912 / 930 / 924 / 944 / 914
Special Order item
113301185A
Product Information
Product Information
Transmission case lid seal.

Fits:
For cars with Manual transmission
Porsche 911/912 1969-73
Porsche 930 1975-77
Porsche 924 1976-85
Porsche 944 1982-91
Porsche 914 1970-76

Click 'Zoom in' for large parts diagram.
Diagram ref no 29

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

113301185A
113301185A
783.250

The product you are viewing cross references to these numbers
Transmission case lid seal. Porsche 911 / 912 / 930 / 924 / 944 / 914 - 113301185A, 783.250
2
Transmission case lid seal. Porsche 911 / 912 / 930 / 924 / 944 / 914
113301185A/1
Product Information
Product Information
Transmission case lid seal.

Fits:
For cars with Manual transmission
Porsche 911/912 1969-73
Porsche 930 1975-77
Porsche 924 1976-85
Porsche 944 1982-91
Porsche 914 1970-76

Click 'Zoom in' for large parts diagram.
Diagram ref no 29

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

113301185A
113301185A
783.250

The product you are viewing cross references to these numbers
DISPLAYING 1 to 9 (of 9 products)
About Gasket Sets / Gaskets / Seals / Lock Nuts

Porsche Gearbox & Transmission Gasket Sets, Gaskets, Seals & Lock Nuts | Precision Sealing for Drivetrain Integrity

Gaskets, seals, and lock nuts are essential components that protect your Porsche’s gearbox or transmission system from fluid leaks, contamination, and vibration. These parts maintain internal pressure, ensure proper lubrication, and secure vital fasteners under extreme temperature and torque conditions — all of which are crucial for reliable, long-term gearbox performance.

At Design911, we supply premium gearbox gasket sets, individual seals, and locking hardware engineered to match or exceed original performance specifications. Manufactured from advanced composite, rubber, and metal-reinforced materials, our gasket kits ensure a perfect fit and dependable sealing across all Porsche models.

Whether you’re performing a gearbox rebuild, addressing a transmission leak, or refreshing driveline components, our gaskets, seals, and lock nuts deliver precision, reliability, and protection against future wear or oil loss.

What Do Gearbox Gaskets, Seals & Lock Nuts Do?

Each component plays a vital role in maintaining your Porsche’s gearbox integrity and smooth power delivery.

Core Functions:

  • Gaskets: Create a reliable seal between mating gearbox surfaces to prevent oil leaks.       
  • Seals: Prevent lubricant loss around rotating shafts and input/output housings.
  • Lock Nuts & Fasteners: Secure transmission components under high vibration and torque loads.

Together, they preserve internal oil pressure, reduce wear on moving parts, and ensure consistent transmission performance in both road and track conditions.

Why Do Gearbox Gaskets, Seals & Lock Nuts Fail or Wear Out?

Over time, these components endure significant thermal cycling, pressure changes, and exposure to fluids. Age and wear lead to material degradation and potential leaks.

Common Causes of Failure Include:

  • Gasket shrinkage, cracking, or compression fatigue.
  • Seal hardening from heat or exposure to aggressive fluids.
  • Damaged or corroded sealing surfaces during service.
  • Lock nuts loosening due to vibration or over-torqueing.
  • Improper installation or reusing old sealing materials.

Failure of any of these parts can result in oil leaks, gearbox noise, or internal component damage — all of which compromise drivetrain performance and reliability.

Why Replace Your Porsche Gearbox Gaskets, Seals & Lock Nuts?

Replacing worn or leaking gaskets and seals prevents oil loss and transmission failure, while fresh locking hardware ensures secure, vibration-proof assembly. During any gearbox or differential service, new gaskets and seals should always be installed to guarantee long-term reliability.

Key Benefits:

  • Prevents oil leaks and contamination of internal components.
  • Maintains gearbox pressure and correct lubrication levels.
  • Reduces noise, vibration, and harshness (NVH).
  • Protects against long-term wear and gear damage.
  • Precision fitment for Porsche manual, automatic, and PDK systems.
  • Ideal for gearbox rebuilds, maintenance, and performance upgrades.

Replacing these parts as a complete kit ensures every sealing point and fastener is restored to optimal condition — protecting your investment and performance.

Highlights

  • Complete Porsche gearbox gasket sets, seals, and lock nut kits.
  • Manufactured from high-quality materials for strength and longevity.
  • Designed for perfect fitment and superior oil retention.
  • Resistant to heat, pressure, and transmission fluid degradation.
  • Suitable for Porsche 911, Cayman, Boxster, Panamera, and more.
  • Essential for gearbox servicing, rebuilds, and leak prevention.       

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