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Dog teeth 1st gear. Porsche 911 & 912 1965-71, 914 All 1st Gear with 5-Spd - 90130224106
90130224106/1
Vehicle Group
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 914 (1970-1976)
Information
Dog teeth 1st gear, G901 1st gear
Dog Teeth 911,912 1965-71, 914 All 1st Gear with 5-Speed transmission only, 2 slots in hub
Sold individually
Fits:
Porsche 911 1965 - 1971
Porsche 914 All 1st Gear with 5-Speed
The dog teeth ring forms part of the gearbox synchroniser assembly. It works with the synchro ring, operating sleeve, and gear hub to allow the selected gear to engage smoothly. On 1st gear, the dog teeth are critical for clean gear selection, especially during low-speed driving, manoeuvring, and gearbox operation from rest.
Functions
• Replaces the 1st gear dog teeth ring
• Helps restore correct 1st gear engagement
• Works with the synchro ring and operating sleeve
• Supports smoother gear selection
• Helps reduce crunching, baulking, or poor shift feel
• Suitable for gearbox rebuilds and synchroniser repairs
• OE Match replacement for classic Porsche transmission service.
Why Replace This Part?
Dog teeth can wear, chip, round off, or become damaged through age, high mileage, poor lubrication, worn synchro parts, or aggressive gear changes. Worn 1st gear dog teeth may cause difficult gear engagement, crunching, jumping out of gear, or poor shift quality. Replacing the dog teeth during gearbox overhaul helps restore reliable synchroniser operation and smoother 1st gear selection.
When to Replace This Part
• 1st gear is difficult to select
• Crunching or baulking occurs when engaging 1st gear
• The gearbox jumps out of 1st gear
• The dog teeth are chipped, rounded, worn, or damaged
• The synchro ring or operating sleeve is being replaced
• The gearbox is being rebuilt or inspected
• Preventative replacement is being carried out during transmission overhaul
Where it fits on the car
This dog teeth ring fits inside the gearbox on the 1st gear synchroniser assembly. It forms part of the internal gear engagement system and should be installed according to the factory gearbox layout.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90130224106
The product you are viewing cross references to these numbers
Dog Teeth 911,912 1965-71, 914 All 1st Gear with 5-Speed transmission only, 2 slots in hub
Sold individually
Fits:
Porsche 911 1965 - 1971
Porsche 914 All 1st Gear with 5-Speed
The dog teeth ring forms part of the gearbox synchroniser assembly. It works with the synchro ring, operating sleeve, and gear hub to allow the selected gear to engage smoothly. On 1st gear, the dog teeth are critical for clean gear selection, especially during low-speed driving, manoeuvring, and gearbox operation from rest.
Functions
• Replaces the 1st gear dog teeth ring
• Helps restore correct 1st gear engagement
• Works with the synchro ring and operating sleeve
• Supports smoother gear selection
• Helps reduce crunching, baulking, or poor shift feel
• Suitable for gearbox rebuilds and synchroniser repairs
• OE Match replacement for classic Porsche transmission service.
Why Replace This Part?
Dog teeth can wear, chip, round off, or become damaged through age, high mileage, poor lubrication, worn synchro parts, or aggressive gear changes. Worn 1st gear dog teeth may cause difficult gear engagement, crunching, jumping out of gear, or poor shift quality. Replacing the dog teeth during gearbox overhaul helps restore reliable synchroniser operation and smoother 1st gear selection.
When to Replace This Part
• 1st gear is difficult to select
• Crunching or baulking occurs when engaging 1st gear
• The gearbox jumps out of 1st gear
• The dog teeth are chipped, rounded, worn, or damaged
• The synchro ring or operating sleeve is being replaced
• The gearbox is being rebuilt or inspected
• Preventative replacement is being carried out during transmission overhaul
Where it fits on the car
This dog teeth ring fits inside the gearbox on the 1st gear synchroniser assembly. It forms part of the internal gear engagement system and should be installed according to the factory gearbox layout.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90130224106
90130224106
9013022410
The product you are viewing cross references to these numbers
Price: €132.76
In stock
Related products
Vehicle Group
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 MKII GT3 / GT3 RS 2010-11
Information
Syncro ring, manual transmission
Synchroniser ring is a replacement designed for Porsche manual gearbox applications, ensuring smooth and reliable gear changes. Installed within the transmission’s synchromesh hub assembly, this ring facilitates the engagement of gears by matching rotational speeds before meshing, thereby eliminating grinding and excessive wear. Built to match Porsche’s original specification.
Sold each
Fits:
Porsche 911 (993) (1995-1998) (3rd-6th gear and reverse gear)
Porsche 911 (996) GT2 (2002-2005) (3rd-6th gear)
Porsche 911 (996) GT3 (2000-2005) (3rd-4th gear)
Porsche 911 (996) Turbo / S (2001-2005) (3rd-4th gear)
Porsche 911 (997) GT3 (2010-2011) (6th gear)
Porsche 911 (997) GT3 RS (2011) (6th gear)
Porsche 911 (997) GT3 RS 4.0 (2011) (6th gear)
• Position: Inside manual transmission, synchromesh ring for one of the gear sets (often 3rd/4th gear or 5th/6th depending on the gearbox).
• Function: Enables gear engagement by synchronising shaft speeds, preventing gear-grinding, facilitating smooth shifts and protecting gear teeth and synchroniser hubs.
• Applications: Ideal when the transmission is open for rebuild, when synchroniser wear is apparent (hard or noisy shifts, grinding) or when restoring a Porsche manual gearbox to high performance.
The synchroniser ring is key to proper manual gearbox operation. Over time, wear, heat and load cause the sliding surfaces to glaze or the ring teeth to degrade, leading to symptoms such as gear clash, difficult shifts, poor gear engagement or even damage to gear teeth and hubs. Replacing the synchroniser ring ensures:
• Smooth, reliable gear engagement
• Reduced gear-grinding and longer synchroniser life
• Protection for the gearbox internals from further wear
• Enhanced driving experience and drivetrain reliability
When to replace:
• The gearbox exhibits grinding when changing into a specific gear or range (often 3rd/4th or 5th/6th)
• Hard gear changes, slipping, or noise from the transmission under load
• Internal inspection shows wear or scoring on the old synchroniser ring surfaces
• You’re rebuilding the gearbox or performing a major service where opening the transmission is already necessary.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92830421123
The product you are viewing cross references to these numbers
Synchroniser ring is a replacement designed for Porsche manual gearbox applications, ensuring smooth and reliable gear changes. Installed within the transmission’s synchromesh hub assembly, this ring facilitates the engagement of gears by matching rotational speeds before meshing, thereby eliminating grinding and excessive wear. Built to match Porsche’s original specification.
Sold each
Fits:
Porsche 911 (993) (1995-1998) (3rd-6th gear and reverse gear)
Porsche 911 (996) GT2 (2002-2005) (3rd-6th gear)
Porsche 911 (996) GT3 (2000-2005) (3rd-4th gear)
Porsche 911 (996) Turbo / S (2001-2005) (3rd-4th gear)
Porsche 911 (997) GT3 (2010-2011) (6th gear)
Porsche 911 (997) GT3 RS (2011) (6th gear)
Porsche 911 (997) GT3 RS 4.0 (2011) (6th gear)
• Position: Inside manual transmission, synchromesh ring for one of the gear sets (often 3rd/4th gear or 5th/6th depending on the gearbox).
• Function: Enables gear engagement by synchronising shaft speeds, preventing gear-grinding, facilitating smooth shifts and protecting gear teeth and synchroniser hubs.
• Applications: Ideal when the transmission is open for rebuild, when synchroniser wear is apparent (hard or noisy shifts, grinding) or when restoring a Porsche manual gearbox to high performance.
The synchroniser ring is key to proper manual gearbox operation. Over time, wear, heat and load cause the sliding surfaces to glaze or the ring teeth to degrade, leading to symptoms such as gear clash, difficult shifts, poor gear engagement or even damage to gear teeth and hubs. Replacing the synchroniser ring ensures:
• Smooth, reliable gear engagement
• Reduced gear-grinding and longer synchroniser life
• Protection for the gearbox internals from further wear
• Enhanced driving experience and drivetrain reliability
When to replace:
• The gearbox exhibits grinding when changing into a specific gear or range (often 3rd/4th or 5th/6th)
• Hard gear changes, slipping, or noise from the transmission under load
• Internal inspection shows wear or scoring on the old synchroniser ring surfaces
• You’re rebuilding the gearbox or performing a major service where opening the transmission is already necessary.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92830421123
92830421123
31309628
313 09 628 03 22
The product you are viewing cross references to these numbers
Price: €121.24
In stock
Vehicle Group
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Information
Synchro Gear Teeth 3rd-6th Gears. Porsche 993 C2 / C4
Fits:
Porsche 993 C2 / C4
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95030421900
The product you are viewing cross references to these numbers
Fits:
Porsche 993 C2 / C4
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95030421900
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The product you are viewing cross references to these numbers
Price: €234.00
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