Please wait…

Please wait while we process your order,
do not press the back button…

synchronizer ring Genuine Porsche part 91130230114

Code: 91130230114

Genuine Porsche part

synchronizer ring

The product code 91130230114 was also found on these diagrams

303-005 - synchroniser ring

Gears and shafts / 5-speed Transmission / Gear wheel sets (Model: ' J.. ', VA) 924 1976-79

303-005 - synchroniser ring

Gears and shafts / Manual transmission - G31.01/02/03 - 924 TURBO / GT 1980 - 1985

Additional information:

• This part is brand new and unused.
• Please verify that it is 100% suitable for your specific vehicle before purchase to ensure compatibility.

Before purchasing thoroughly check part to confirm compatibility.

Related products

Synchro ring 3rd / 4th / 5th Gear. Porsche 911 1969-86 (915 Gearbox)

91130230113/1

Product Information

Synchro Ring 3rd / 4th / 5th Gear. (3 Per Gearbox)
The OE Match Synchro Ring is a high-quality replacement transmission component designed for use in 3rd, 4th and 5th gear positions within Porsche manual gearboxes. Manufactured to OE specifications for fit, precision and durability, this synchroniser ring plays a critical role in ensuring smooth and accurate gear changes by matching gear and shaft speeds before engagement.

Fits:

Porsche 911 1965-1968 2.0L / 912 SWB (F)
Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
Porsche 911 1978-1983 3.0L / SC
Porsche 911 1984-1986 3.2L
Porsche 914 (1970-1976)

Diagram Ref No 10

Working in conjunction with the synchroniser hub, selector sleeve and dog teeth, the synchro ring uses friction to equalise rotational speeds between transmission components, allowing gears to engage smoothly and reducing wear on the gearbox. Three synchro rings are typically required per gearbox, one for each applicable gear position.

What This Product Does:

Synchronises gear and shaft speeds before engagement.
Enables smooth selection of 3rd, 4th and 5th gears.
Reduces gear clash and grinding during shifting.
Works with the synchroniser assembly and dog teeth.
Improves gearbox shift quality and drivability.
Minimises wear on transmission engagement components.
Supports reliable and efficient manual gearbox operation.

Symptoms Of Wear Or Failure:

Difficulty engaging 3rd, 4th or 5th gear.
Gear grinding or crunching during gear changes.
Increased resistance when shifting.
Notchy, inconsistent or rough gear engagement.
Requirement to force the gear lever into gear.
Excessive transmission noise during shifting.
Poor shift quality, especially at higher engine speeds.
Accelerated wear of dog teeth, selector sleeves and related components.

Why Replacement Matters:

Synchroniser rings are wear items that experience friction every time a gear is selected. Over time, the friction surfaces wear down, reducing their ability to equalise gear speeds before engagement. This can result in difficult gear selection, noisy shifts and increased wear throughout the transmission.
A worn synchro ring places additional stress on dog teeth, selector sleeves and synchroniser hubs, potentially leading to more extensive gearbox damage and expensive repairs if left unattended. Reduced synchronisation can also detract from driving enjoyment and compromise the smooth operation expected from a Porsche manual transmission.
Replacing worn synchro rings restores proper synchronisation, improves gear change quality and helps protect other internal gearbox components from premature wear. An OE Match replacement provides factory-style fitment, precision manufacturing and long-term durability, ensuring dependable transmission performance and smooth gear engagement.

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

91130230113

13619

91130230106

91130230113

The product you are viewing cross references to these numbers

3 3 3

Synchro Brake Band 3rd / 4th / 5th Gear. Porsche 911 1974-86 (915 Gearbox)

91130231608/1

Product Information

Synchro Brake Band 3rd / 4th / 5th gear
This OE Match synchro brake band is a replacement transmission synchroniser component used on Porsche 911 models fitted with the 915 gearbox. It is designed for the 3rd, 4th, and 5th gear synchroniser assembly and matches the original-style fit and function.
3 per gearbox. *please note: these are 1/2 pieces so order 2 pcs to make one complete brake band

Fits:
Porsche 911 1974 - 1986 (915 Gearbox)

Diagram ref no 8.

This brake band fits inside the 915 manual gearbox, within the synchroniser assembly for 3rd, 4th, and 5th gear. It is an internal transmission component and is accessed during gearbox disassembly or synchroniser service.

The synchro brake band works as part of the gearbox synchroniser system. During gear changes, it helps control and equalise the speed of the gear and synchroniser hub before engagement. This allows the gear to engage more smoothly and helps reduce grinding, baulking, or difficult shifting.

Functions
• Supports smooth gear engagement in the 915 gearbox
• Helps synchronise gear speed during shifting
• Reduces gear clash, grinding, and shift resistance
• Works with the synchro ring, anchor block, energiser block, and operating sleeve
• Helps restore correct shift quality in worn gearbox assemblies
• Provides an OE Match replacement for the original brake band
• Suitable for gearbox rebuilds and synchroniser repairs

Why Replace This Part?
The synchro brake band is subject to wear every time the gearbox is shifted. Over time, it can become worn, distorted, cracked, or weakened, which may lead to poor synchroniser performance. A worn brake band can contribute to grinding gears, difficult engagement, or a notchy shift feel, especially in higher gears. Replacing it during gearbox service helps restore smoother gear changes and supports long-term transmission reliability.

When to Replace:
• The gearbox is grinding when selecting 3rd, 4th, or 5th gear
• Gear changes feel notchy, stiff, or difficult
• The transmission baulks or resists engagement
• The 915 gearbox is being rebuilt or inspected
• The synchroniser ring or operating sleeve is being replaced
• The brake band is worn, cracked, bent, or damaged
• There is excessive wear in the synchroniser assembly
• As preventative replacement during a full gearbox overhaul

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

91130231608

91130231608

The product you are viewing cross references to these numbers

Syncro ring 4th / 5th Gear. Porsche 924 Turbo / GT

91130230114/1

Product Information

Synchroniser Ring / Synchro Gear (4th - 5th gear).
This synchroniser ring is a high-quality replacement for the original Porsche synchro ring, intended for the 4th / 5th gear engagement in manual transmissions. It restores crisp shifting performance and ensures smooth gear changes under load.
Sold each.

Fits:
Porsche 924 Turbo / GT 1979 - 1984

Diagram Ref no 10.

The synchroniser ring (synchro) helps match rotational speeds between the gear and the shaft before engagement, reducing gear clash and enabling smooth shifting. For 4th ↔ 5th gear, it is especially important because these are often used under high load or highway speeds. Precise tooth profile, surface finish, and friction surface design are essential to ensure positive engagement, durability, and minimal wear.

Over time, synchroniser rings are exposed to intense friction, heat, and load during every gear change. The original rings can wear, glaze, or lose their critical friction properties, leading to:
• Hard or grinding gear shifts
• Gear pop-outs under acceleration or deceleration
• Increased wear on gear teeth and shift sleeves
• Reduced driving comfort and gearbox longevity

Replacing worn components with a replacement Synchroniser Ring ensures proper tooth engagement, restores friction characteristics, and protects the entire transmission assembly from premature wear — keeping your Porsche shifting smoothly for years to come.

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

91130230114

313095250322

91130230108

91130230114

The product you are viewing cross references to these numbers

Enter your VAT number here and click Verify:

synchronizer ring Genuine Porsche part 91130230114