Dog eeth 1st gear. Porsche 911 1974-86 (915 Gearbox)  ❭  91530224114

Dog Teeth 1st Gear.
The OE Match 1st Gear Dog Teeth is a high-quality replacement gearbox component designed for Porsche manual transmissions. Manufactured to OE specifications for fit, precision and durability, this component forms a critical part of the gear engagement mechanism, allowing smooth and secure engagement of first gear during operation.  

Fits:

• Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
• Porsche 911 1978-1983 3.0L / SC
• Porsche 911 1984-1986 3.2L  

Diagram Ref No 43

The dog teeth ring is fitted to the gear assembly and works in conjunction with the synchroniser hub, synchroniser ring and selector sleeve. It provides the engagement points that lock the selected gear to the transmission shaft, ensuring efficient transfer of engine power through the gearbox. Precision machining is essential for smooth shifting performance and long transmission service life.  

What This Product Does:

• Provides the engagement surface for first gear selection.
• Works with the synchroniser assembly to enable smooth gear changes.
• Locks first gear to the transmission shaft when selected.
• Ensures efficient transfer of engine power through the gearbox.
• Supports accurate and reliable gear engagement.
• Helps minimise transmission wear during shifting.
• Contributes to smooth manual gearbox operation.

Symptoms Of Wear Or Failure:

• Difficulty engaging first gear.
• Gear crunching or grinding during gear selection.
• First gear jumping out of engagement under load.
• Increased resistance when shifting into first gear.
• Poor shift quality or inconsistent engagement.
• Excessive transmission noise during gear changes.
• Visible wear, rounding or chipping of the dog teeth during inspection.
• Premature wear of related synchroniser components.

Why Replacement Matters:

• Dog teeth are subjected to repeated engagement loads every time a gear is selected. Over time, the engagement surfaces can become worn, rounded or damaged, particularly in high-mileage transmissions or vehicles subjected to aggressive shifting. As wear progresses, gear engagement becomes increasingly difficult and less precise.
• A worn dog teeth ring can compromise synchroniser performance and may eventually prevent proper engagement of first gear. Continued operation with worn components can accelerate wear of synchroniser hubs, selector sleeves and other transmission parts, leading to more extensive and costly gearbox repairs.
• Replacing worn first gear dog teeth restores precise gear engagement, improves shift quality and helps protect the transmission from further internal wear. An OE Match replacement provides factory-style fitment, accurate machining and long-term durability, ensuring reliable gearbox operation and preserving the driving experience expected from your Porsche.

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

91530224114

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