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- Porsche 356A 1955-59
Fits:
Porsche 356A - 1955 to 1959
Type 519 Gearbox
Diagram ref no 10.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
51920316
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
| Dog Teeth 1st Gear 911 1977-86 Asymmetrical Tooth Point, 1 slot in hub (915 Trans. 1977-86) |
Fits:
Porsche 911 1974-86 (915 Gearbox)
Diagram Ref no 43.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91530224114
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
G915 up to 1975 1st gear / G915 1976>> 2nd. gear
Fits:
Porsche 911 1974-86 (915 Gearbox)
| Dog
Teeth 2nd Gear 911 1972-86 Symmetrical Tooth Point, 1 slot in hub (915 Trans. 1972-86) |
A dog-teeth gear (or synchronizer-gear hub / 1st-2nd gear dog gear) used inside the 915 gearbox. This gear section engages with corresponding hub or clutch-dog components to allow shifting between gears - in particular 1st and/or 2nd gear depending on the configuration.
Gears inside classic 915 transmissions - especially dog / synchronizer-gears - are subject to wear over time: tooth heads can round off, suffer chip-out, or distort under load; synchronizer engagement surfaces may wear and lose precision. This can cause:
• Gear-slip or missed shifts
• Grinding or clash during shifting
• Torque transmission loss or vibration under load
• Accelerated wear of other transmission internals.
Replacing worn gears with a precisely machined, correctly hardened OE-match replacement restores gear-mesh integrity, retains gearbox performance, and helps avoid costly gearbox failure.
When to Replace.
Consider fitting this gear if:
• You hear grinding, clash, or crunching during shifting - especially into 1st or 2nd gear
• Gearbox inspection reveals worn, rounded, chipped, or damaged dog-teeth or synchronizer surfaces
• You are performing a full gearbox rebuild or overhaul
• The gearbox has high mileage or signs of internal wear
• You want to restore factory-spec shifting performance and reliability
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91530224200
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
G901 2rd to 5th Gear,
G915 3rd to 5th Gear
Manual transmission gear teeth are precision-engineered ridges on the gears inside a manual gearbox. These teeth interlock to transfer power from the engine to the driveshaft. Their exact shape and alignment ensure smooth gear engagement, efficient torque delivery, and dependable performance across all gear ratios. Keeping the gear teeth strong and undamaged is crucial for preventing slippage, maintaining power, and extending the overall life of the transmission.
Fits:Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera (915 Gearbox)
Porsche 911 1978-1983 3.0L / SC (915 Gearbox)
Porsche 911 1984-1986 3.2L (915 Gearbox)
Signs of Manual Transmission Gear Teeth Failure
- Grinding or whining noises during shifting, often caused by worn or damaged teeth.
- Difficulty engaging gears due to misaligned or broken gear teeth.
- Loss of power or gear slippage when the teeth can no longer mesh correctly.
Diagram Ref no 6, 15, 23.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90130224203
The product you are viewing cross references to these numbers