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- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- 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
Restore accurate mileage recording with this OE Match Odometer Speedometer Gear Set, manufactured as a direct replacement.. Produced to OE-style specifications, these precision-engineered replacement gears are designed to restore the correct operation of the speedometer's odometer and trip meter mechanisms. Available in 15-tooth, 20-tooth, and 25-tooth configurations, they provide the correct replacement for a variety of Porsche instrument applications.
15 Tooth : The diameter of this gear is 6.90mm or .271"
20 Tooth : The diameter of this gear is
25 Tooth : The diameter of this gear is 10.70mm or .421"
Fits:
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- 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
Please note:
Need to open speedometer to determine correct style and tooth count required for your vehicle.
If you want to repair the odometer permanently you will need to order the gear and the pod. Blue/Green=16; Red=17 tooth count
Over time, the original plastic odometer gears become brittle due to age and prolonged exposure to heat, eventually cracking, losing teeth, or failing completely. This commonly results in the odometer and trip meter ceasing to function while the speedometer continues to display vehicle speed correctly. Replacing worn gears restores accurate mileage recording and preserves the originality and functionality of the instrument cluster. These OE Match gears are ideal for routine maintenance, speedometer repairs, and Porsche restoration projects.
What This Product Does:
- Drive the odometer and trip meter mechanisms.
- Transfer rotational movement within the speedometer assembly.
- Restore accurate mileage recording.
- Available in 15-tooth, 20-tooth, and 25-tooth versions for compatible applications.
- Replace cracked, worn, or broken original gears.
- Improve the reliability of the instrument cluster.
- Provide an OE-style fit and dependable quality.
Symptoms Of Wear Or Failure:
- Odometer no longer records mileage.
- Trip meter fails to advance correctly.
- Speedometer operates but the odometer does not.
- Cracked, broken, or missing gear teeth.
- Intermittent mileage recording.
- Internal gear damage discovered during instrument refurbishment.
- Instrument cluster restoration requiring replacement drive gears.
Why Replacement Matters:
- The odometer speedometer gears are essential internal components that transfer the rotational drive required to operate the odometer and trip meter accurately. As the original plastic gears age, they commonly become brittle and fracture, causing the mileage recording mechanism to stop even though the speedometer itself continues to function normally.
- Replacing the worn gears restores accurate odometer and trip meter operation, preserving both the functionality and value of the vehicle while maintaining the originality of the instrument cluster. Manufactured as a direct replacement and produced to OE-style specifications, these OE Match odometer speedometer gears provide the correct fit, dependable quality, and long-lasting durability, making them an excellent choice for Porsche maintenance, instrument repairs, and restoration projects.
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Internal Odometer Speedometer Gear - Multiple Tooth Count Options
Restore the operation of your classic Porsche speedometer with this OE Match Internal Odometer Speedometer Gear. Manufactured to replace the original internal plastic drive gear, this component restores the mechanical drive to the odometer and trip meter when the original gear has become worn, brittle or broken.
The internal odometer gear is housed within the speedometer and transfers drive from the speedometer mechanism to the odometer assembly. Over time, the original plastic gear naturally deteriorates through age and repeated use, often causing the odometer and trip meter to stop recording mileage while the speedometer needle continues to function normally.
Replacing the failed gear is a cost-effective repair that allows you to retain the original speedometer while restoring accurate mileage recording.
Choosing the Correct Gear
There are multiple tooth count options fitted to speedometers. Before ordering, the speedometer must be opened so the original gear can be inspected and the correct tooth count confirmed.
The replacement gear consists of:
- Outer
gear: Always 20 teeth
- Inner gear: Available with 21 to 32 teeth, depending on your speedometer.
If the original gear is too damaged to count accurately, count the teeth on the mating gear instead. Use the following guide to determine the correct replacement:
Teeth on Mating Gear - Required Gear
49 teeth 20 x 21
48 teeth 20 x 22
47 teeth 20 x 23
41 teeth 20 x 29
40 teeth 20 x 30
38 teeth 20 x 32
Please Note:
The speedometer must be dismantled to confirm both the correct gear
style and tooth count before ordering. Ordering without verifying the existing
gear may result in purchasing the incorrect replacement.
Key Features
- Restores odometer and trip meter operation
- Direct replacement for worn or broken internal plastic gears
- Multiple inner tooth count options available
- Outer gear always features 20 teeth
- Cost-effective alternative to replacing the complete speedometer
- Ideal for instrument restoration and repair
The original instruments fitted to early Porsche models are built to last, but one of the few components that commonly fails is the small internal plastic odometer drive gear. Heat, age and decades of continuous operation eventually make the original material brittle, causing the gear teeth to crack or strip.
Fortunately, replacing the damaged gear restores normal operation while allowing you to retain your original factory instrument.
Common Symptoms of a Failed Odometer Gear
- Speedometer needle operates normally
- Odometer has stopped recording mileage
- Trip meter no longer advances
- Intermittent odometer operation
- Broken or cracked plastic gear inside the speedometer
Because Porsche used several different gear ratios throughout production, identifying the correct gear before ordering is essential for a successful repair.
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 924 2.0L 1976-79
- Porsche 924 2.0L 1980-85
- Porsche 924 Turbo 2.0L 1979-81
- Porsche 924 Turbo 2.0L 1982-84
- Porsche 924 Carrera GT 2.0L 1981
- Porsche 924 Carrera GTS 2.0L 1982
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- Porsche 968 3.0L 1992-94
- Porsche 968 Sport 3.0L 1994-95
- Porsche 968 CS 3.0L 1993-95
- Porsche 968 Turbo S 3.0L 1993-94
- Porsche 914 (1970-1976)
Mechanical Odometer Speedometer Gear
Restore the operation of your classic Porsche's odometer
with this OE Match Mechanical Odometer Speedometer Gear.
Fits:
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 924 2.0L 1976-79
- Porsche 924 2.0L 1980-85
- Porsche 924 Turbo 2.0L 1979-81
- Porsche 924 Turbo 2.0L 1982-84
- Porsche 924 Carrera GT 2.0L 1981
- Porsche 924 Carrera GTS 2.0L 1982
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- Porsche 968 3.0L 1992-94
- Porsche 968 Sport 3.0L 1994-95
- Porsche 968 CS 3.0L 1993-95
- Porsche 968 Turbo S 3.0L 1993-94
- Porsche 914 (1970-1976)
This gear is located on the side of the speedometer framework and forms an important part of the internal gear train that drives both the odometer and trip meter. Over time, the original plastic gear can become brittle through age and repeated use, often developing a fine crack around the centre bore where it fits onto the shaft. Once cracked, the gear can no longer grip the shaft correctly, causing it to slip and preventing the odometer from recording mileage accurately.
One of the most common symptoms is that the speedometer needle continues to work normally, while the odometer and trip meter stop counting or operate intermittently.
It is important to note that there are potentially two internal gears that commonly fail within the speedometer. Before ordering, inspect the gear mounted on the side of the speedometer framework.
If your existing gear is metal, this replacement is not required. If your gear is plastic, inspect it carefully around the shaft hole for hairline cracks or signs of slipping. Even a very small crack is enough to cause the gear to fail.To ensure the correct replacement is ordered, the speedometer must be opened and the existing gear inspected. As Porsche used several different gear styles and tooth counts across production, it is always recommended to confirm the original gear before purchasing.
Key Features
- Replaces the plastic gear fitted to the side of the speedometer framework
- Restores odometer and trip meter operation
- Direct replacement for worn or cracked original gears
- Manufactured for precise fit and reliable performance
- Ideal for speedometer restoration and instrument repairs
Always inspect your original gear before ordering Not required if your existing gear is metal
Porsche Mechanical Speedometer & Odometer Repair Parts
The mechanical VDO speedometers fitted to classic Porsche models are renowned for their durability, but after decades of service the internal plastic gears naturally become brittle. One of the most common failures occurs when the gear mounted on the side of the speedometer framework develops a small crack around the centre shaft.
Although the crack is often difficult to see, it prevents the gear from gripping the shaft securely, allowing it to rotate independently instead of driving the odometer mechanism. Replacing the damaged gear restores accurate mileage recording while preserving the originality of your factory instrument.
Common Symptoms of a Failed Mechanical Odometer Gear
- Speedometer needle operates correctly
- Odometer has stopped recording mileage
- Trip meter no longer works
- Intermittent odometer operation
- Gear slips on the shaft
- Hairline crack visible around the centre bore of the plastic gear
Because several different gear designs and tooth counts were used across Porsche production, dismantling the speedometer and inspecting the original gear is essential before ordering a replacement.
- Porsche 924 2.0L 1976-79
- Porsche 924 2.0L 1980-85
- Porsche 924 Turbo 2.0L 1979-81
- Porsche 924 Turbo 2.0L 1982-84
- Porsche 924 Carrera GT 2.0L 1981
- Porsche 924 Carrera GTS 2.0L 1982
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
Fits:
Porsche 924 1976-85 LHD Cars ***not for (J)
Porsche 924S 1986-88 LHD Cars
Porsche 944 1982-85 LHD Cars
Click 'Zoom in' for large parts diagram.
Diagram ref no 5
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
142957801C
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
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 924 2.0L 1976-79
- Porsche 924 2.0L 1980-85
- Porsche 924 Turbo 2.0L 1979-81
- Porsche 924 Turbo 2.0L 1982-84
- Porsche 924 Carrera GT 2.0L 1981
- Porsche 924 Carrera GTS 2.0L 1982
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 914 (1970-1976)
2-Pole T5 Bulb Holder
Sold each
Restore reliable dashboard and instrument illumination with
this OE Match 2-Pole T5 Bulb Holder. Manufactured to replicate the original
factory specification, this bulb holder securely accepts a T5 wedge bulb and
provides a dependable electrical connection for your Porsche's instrument
cluster, gauges and dashboard illumination.
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
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 924 2.0L 1976-79
- Porsche 924 2.0L 1980-85
- Porsche 924 Turbo 2.0L 1979-81
- Porsche 924 Turbo 2.0L 1982-84
- Porsche 924 Carrera GT 2.0L 1981
- Porsche 924 Carrera GTS 2.0L 1982
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 914 (1970-1976)
Diagram ref no 11
Over time, original bulb holders can become brittle, corroded or lose electrical continuity, resulting in intermittent or failed dashboard lighting. This OE Match replacement offers the correct fit and function, making it ideal for electrical repairs, instrument refurbishment and classic Porsche restoration projects.
What Does the 2-Pole T5 Bulb Holder Do?
The bulb holder forms the electrical connection between the vehicle's wiring harness and the T5 dashboard bulb.
Its primary functions include:
- Holding the T5 wedge bulb securely in position.
- Providing a reliable two-pole electrical connection.
- Supplying power to dashboard and instrument illumination.
- Ensuring consistent lighting of gauges, switches or warning lamps.
- Allowing quick replacement of dashboard bulbs during servicing.
A correctly functioning bulb holder is essential for maintaining clear instrument visibility, particularly when driving at night.
Why Does the Bulb Holder Fail?
After many years of service, the original bulb holder is exposed to heat, vibration and repeated bulb replacement.
Common causes of failure include:
- Brittle plastic caused by age and heat.
- Corrosion on the electrical contacts.
- Oxidation reducing electrical conductivity.
- Damaged or bent contact terminals.
- Wear caused by repeated bulb changes.
- Poor electrical connection resulting from vibration.
A faulty bulb holder may cause flickering illumination, intermittent operation or complete failure of the instrument lighting.
When Should It Be Replaced?
Replacement is recommended when:
- Dashboard or instrument lights fail despite fitting a new bulb.
- Illumination flickers or operates intermittently.
- The holder is cracked, broken or heat damaged.
- Electrical contacts show signs of corrosion.
- Restoring or refurbishing the instrument cluster.
- Carrying out preventative maintenance during dashboard repairs.
Replacing worn bulb holders alongside new bulbs helps ensure reliable and consistent instrument illumination.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91463117910
The product you are viewing cross references to these numbers