Gearbox Syncro Ring / Brake Band / Dog Teeth

Circlip for transmission gear. 
Sold each.



Fits:
Porsche 911 1965-71 (1. - 5th gear)
Porsche 911 1972-86 (3. - 5th gear)
Porsche 914 1970-76 (1. - 5th gear)
Porsche 924 1976-85 (4. - 5th gear)

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Diagram ref no 11

Circlip for transmission gear.
Sold each.



Fits:
Porsche 911 1965-71 (1. - 5th gear)
Porsche 911 1972-86 (3. - 5th gear)
Porsche 914 1970-76 (1. - 5th gear)
Porsche 924 1976-85 (4. - 5th gear)

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Diagram ref no 11

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91130231101

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Synchro ring 4th / 5th Gear. Sold each.



Fits:
Porsche 924 Turbo / GT 1979-84

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Diagram Ref no 10.

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91130230114

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Syncro ring 1st/2nd Gear.
Price is for one syncro ring.

Fits:
For cars with 5-Speed Manual Transmission
Porsche 911 Carrera G50 1987-89
Porsche 964 Carrera 2 G50 1989-94
Porsche 964 Carrera 4 G64 1989-94
Porsche 964 Turbo 3.3L G50 1991-92
Porsche 964 Turbo 3.6L G50 1993-94

Diagram Ref no 32

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95030431102

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Syncro Ring 2nd Gear.



Fits:
Porsche 924 1980-85 Manual Transmission: VQ VR UV MD ME MF MB MX
Porsche 944 1982-85 Manual Transmission

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Diagram Ref no 22

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PCG311247

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Synchro Ring 2nd Gear.



Fits:
Porsche 924 1980-85 Manual Transmission: VQ VR UV MD ME MF MB MX
Porsche 944 1982-85 Manual Transmission

Click 'Zoom in' to see the diagram.
Diagram Ref no 22

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PCG311247

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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.

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91130230114

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Syncro ring 5th gear.



Fits:
Porsche 924 1980-85 Manual Transmission: VQ VR UV MD ME MF MB MX
Porsche 924S 1986-88 Manual Transmission
Porsche 944 1982-85 Manual Transmission
Porsche 944 1986-88 Manual Transmission: 5Y 5S 5Z 7V 5P 5R UY 9U AGP AGR AOR
Porsche 944 1988-91 Manual Transmission: ASG ASH AOR AOS AOT ASV ASW

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Diagram Ref no 41

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014311295E

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Syncro ring 5th gear.

Fits:
Porsche 924 1980-85 Manual Transmission: VQ VR UV MD ME MF MB MX
Porsche 924S 1986-88 Manual Transmission
Porsche 944 1982-85 Manual Transmission
Porsche 944 1986-88 Manual Transmission: 5Y 5S 5Z 7V 5P 5R UY 9U AGP AGR AOR
Porsche 944 1988-91 Manual Transmission: ASG ASH AOR AOS AOT ASV ASW

Diagram Ref no 41

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014311295E

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Syncroniser ring 3rd/4th gear. Price is for each Synchro Ring. Needs 2 per gearbox.



Fits:
Porsche 924 (1976 - 1985)
Porsche 924 S (1986 - 1988)
Porsche 924 Turbo (1979 - 1982)
Porsche 944 (1982 - 1985)
Porsche 944/2 (1986 - 1988)
Porsche 944 Turbo (1985 - 1991)
Porsche 944 S (1987 - 1988)
Porsche 944 S2 (1989 - 1991)

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Diagram ref no 8

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PCG311295

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