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reverse gear Genuine Porsche part 93030222202

Code: 93030222202

Genuine Porsche part

reverse gear

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

Dog teeth 1st gear. Porsche 911 Turbo 1977-88 (4 speed gearbox)

93030224102/1

Product Information

Dog Teeth 1st Gear (Asymmetrical Teeth)

Restore crisp gear engagement and transmission performance with this OE Match 1st Gear Dog Teeth Ring, designed for Porsche 911 turbo (930) models produced between 1977 and 1988. Featuring the correct asymmetrical tooth profile used in the Porsche 930 gearbox, this critical synchroniser component plays a key role in ensuring smooth and reliable engagement of 1st gear.

Fits:

Porsche 911 1978-1989 3.3L Turbo (930)

Diagram Ref no 48

Manufactured to OE specifications, this replacement dog teeth ring delivers precise machining, correct fitment and long-lasting durability for gearbox rebuilds, restorations and transmission repairs. Whether you're addressing difficult gear engagement, gearbox wear or carrying out a complete transmission overhaul, replacing worn dog teeth is essential for restoring proper shift quality.

What Do 1st Gear Dog Teeth Do?

The dog teeth ring is a fundamental part of the synchroniser assembly within the Porsche 930 gearbox. Mounted to the gear itself, the dog teeth provide the engagement surface that allows the synchroniser operating sleeve to lock the selected gear to the shaft during a gear change.

Working together with the synchroniser ring, guide hub and operating sleeve, the dog teeth help:

Enable smooth gear engagement.
Synchronise gear speeds before engagement.
Reduce gear clash during shifting.
Securely lock 1st gear into operation.
Improve gearbox performance and shift quality.
Support reliable transmission operation.

The asymmetrical tooth design used in many Porsche 930 gearbox applications was engineered to improve engagement characteristics and durability under the increased torque loads generated by the turbocharged engine.

Why Do Dog Teeth Fail?

Dog teeth are subjected to repeated mechanical impact every time a gear change is performed. Over time, wear gradually alters the tooth profile, reducing engagement quality and increasing synchroniser stress.

Common causes of failure include:

High mileage gearbox wear.
Aggressive shifting techniques.
Repeated poor gear engagement.
Worn synchroniser rings.
Transmission oil contamination.
Excessive gearbox loading.
Age-related wear and fatigue.
Incorrect gearbox setup during previous repairs.

First gear dog teeth are particularly susceptible to wear because they experience frequent engagement from stationary starts and low-speed driving.

When Should 1st Gear Dog Teeth Be Replaced?

Dog teeth should always be carefully inspected whenever the gearbox is dismantled. Replacement is recommended if you notice:

Difficulty engaging 1st gear.
Gear crunching during shifts.
Jumping out of gear.
Rounded or hooked tooth profiles.
Excessive wear on synchroniser components.
Poor shift quality.
Visible damage or chipping.

During a professional Porsche 930 gearbox rebuild, worn dog teeth are commonly replaced alongside synchroniser rings, guide hubs and operating sleeves to restore factory shift performance.

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

93030224102

93030224102

The product you are viewing cross references to these numbers

4 4 4 4

Dog teeth 2nd gear. Porsche 911 Turbo 1975-88 (4 speed gearbox)

93030224200/1

Product Information

2nd Gear Dog Teeth

Restore precise gear engagement and transmission performance with this OE Match 2nd Gear Dog Teeth Ring designed for Porsche 911 turbo (930) models produced between 1977 and 1988. As a critical component of the synchroniser assembly, the dog teeth ring allows smooth and reliable engagement of 2nd gear, helping maintain the shifting quality and driving characteristics expected from the legendary Porsche Turbo drivetrain.

Fits:

Porsche 911 1975-1977 3.0L Turbo (930)
Porsche 911 1978-1988 3.3L Turbo (930)

Diagram Ref no 35

Manufactured to OE specifications, this replacement dog teeth ring delivers precise machining, excellent durability and factory-correct fitment. Whether you're rebuilding a Porsche 930 gearbox, addressing synchroniser wear or carrying out a full transmission restoration, replacing worn dog teeth is essential for achieving smooth gear changes and long-term gearbox reliability.

What Do 2nd Gear Dog Teeth Do?

The dog teeth ring is mounted directly to the gear and forms an essential part of the Porsche 930 synchroniser system. During a gear change, the synchroniser assembly matches the rotational speed of the selected gear before the operating sleeve engages the dog teeth to lock the gear to the shaft.

The dog teeth perform several vital functions:

Enable smooth engagement of 2nd gear.
Provide the engagement surface for the operating sleeve.
Help synchronise gear speeds during shifting.
Reduce gear clash and transmission wear.
Maintain precise gear selection.
Support reliable gearbox operation under load.

In the high-torque Porsche 930 transmission, properly functioning dog teeth are critical for maintaining shift quality and preventing excessive wear to other synchroniser components.

Why Do 2nd Gear Dog Teeth Fail?

Dog teeth are subjected to repeated impact loads during every gear change. Over time, wear gradually alters the shape of the engagement teeth, reducing their effectiveness and causing shifting issues.

Common causes of failure include:

High mileage transmission wear.
Aggressive shifting and rapid gear changes.
Worn synchroniser rings.
Poor gearbox lubrication.
Contaminated transmission oil.
Excessive drivetrain loading.
Gear grinding during engagement.
Age-related wear and fatigue.

Second gear is one of the most frequently used gears during normal driving, making its synchroniser and dog teeth assembly particularly vulnerable to long-term wear.

When Should 2nd Gear Dog Teeth Be Replaced?

The dog teeth ring should always be inspected whenever the gearbox is dismantled. Replacement is recommended if you notice:

Difficulty engaging 2nd gear.
Crunching or grinding during shifts.
Rounded or hooked engagement teeth.
Gear engagement becoming increasingly notchy.
Visible wear, chipping or damage.
Excessive synchroniser wear.
Transmission rebuild requirements.

Most Porsche gearbox specialists recommend replacing worn dog teeth during transmission overhauls to restore smooth shifting and protect other synchroniser components from premature wear.

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

93030224200

16953

93030224200

313096680322

The product you are viewing cross references to these numbers

Dog teeth 3rd / 4th gear. Porsche 911 Turbo 1975-88 (4 speed gearbox)

93030224300/1

Product Information

3rd / 4th Gear Dog Teeth

Restore precise shifting performance and gearbox reliability with this OE Match 3rd / 4th Gear Dog Teeth Ring designed for Porsche 911 Turbo (930) models produced between 1975 and 1988. As a vital component within the synchroniser assembly, the dog teeth ring allows smooth engagement of 3rd and 4th gears, helping maintain the crisp shifting characteristics expected from the legendary Porsche Turbo transmission.

Fits:

Porsche 911 1975-1977 3.0L Turbo (930)
Porsche 911 1978-1988 3.3L Turbo (930)

Diagram Ref no 32 & 34

Manufactured to OE specifications, this replacement dog teeth ring provides accurate machining, correct tooth geometry and exceptional durability for transmission rebuilds, restorations and performance maintenance. Whether you're rebuilding a worn gearbox or restoring a classic Porsche 930 to factory standards, replacing worn dog teeth is essential for preserving smooth gear selection and transmission longevity.

What Do 3rd / 4th Gear Dog Teeth Do?

The dog teeth ring forms an integral part of the Porsche 930 synchroniser assembly. Mounted to the gear, it provides the engagement interface between the gear and the synchroniser operating sleeve.

During a gear change, the synchroniser system matches rotational speeds between components before the operating sleeve engages the dog teeth, locking the selected gear to the shaft and transmitting engine power through the transmission.

The dog teeth help:

Enable smooth engagement of 3rd and 4th gears.
Provide positive gear locking during operation.
Reduce gear clash during shifting.
Improve gear change precision.
Support synchroniser operation.
Maintain reliable gearbox performance under load.

Properly functioning dog teeth are essential for preserving the smooth shift quality and driving enjoyment of the Porsche 930 transmission.

Why Do 3rd / 4th Gear Dog Teeth Fail?

Over time, repeated gear changes gradually wear the engagement surfaces of the dog teeth. As wear increases, gear engagement quality deteriorates and additional stress is placed on the synchroniser assembly.

Common causes of failure include:

High mileage wear.
Aggressive driving and fast shifting.
Worn synchroniser rings.
Gear grinding during engagement.
Contaminated gearbox oil.
Inadequate transmission maintenance.
Excessive drivetrain loads from turbocharged performance.
Age-related metal fatigue.

Third and fourth gears often see frequent use during normal road driving and higher-speed operation, making their synchroniser components susceptible to long-term wear.

When Should 3rd / 4th Gear Dog Teeth Be Replaced?

Dog teeth should be inspected whenever the gearbox is dismantled or rebuilt. Replacement is recommended if you experience:

Difficulty engaging 3rd or 4th gear.
Gear crunching or grinding during shifts.
Rounded, hooked or worn engagement teeth.
Excessive synchroniser wear.
Poor shift quality.
Visible damage or chipping.
Transmission rebuild requirements.

Most Porsche transmission specialists replace worn dog teeth alongside synchroniser rings, guide hubs and operating sleeves during gearbox overhauls to ensure optimal shifting performance.

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

93030224300

16954

93030224300

The product you are viewing cross references to these numbers

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reverse gear Genuine Porsche part 93030222202