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Speedometer reset knob. Porsche 911 65-77 ❭ 90174119122
- 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
The OE Match speedometer reset knob is a replacement interior control used to reset the trip odometer on the speedometer in classic Porsche 911 models from 1965 to 1977. This small dashboard component allows the driver to manually reset the trip counter to zero for tracking distance during journeys. Please note Original Porsche part is no longer available.
Sold individually
Fits:
Porsche 911 1965 - 1977
Diagram ref no 3
The speedometer reset knob is a small knurled adjustment knob located on or near the speedometer gauge in early Porsche 911 dashboards. It connects to the trip odometer mechanism and allows the driver to manually reset the distance counter.
The OE Match Speedometer reset knob is designed to replicate the original Porsche component in appearance, size and fitment. It is particularly useful because the original Porsche part is no longer available, making OE-style replacements an important solution for maintenance and restoration of classic models.
The knob allows the driver to reset the trip odometer (day trip counter) to zero. This feature helps drivers track individual journey distances, fuel consumption or maintenance intervals.
Replacing a worn or missing reset knob restores full functionality to the instrument cluster and ensures the trip counter can be operated easily and reliably.
Function
• Trip Odometer Reset: Allows manual reset of the speedometer trip counter
• Instrument Control: Connects to the internal odometer reset mechanism
• Driver Convenience: Enables tracking of trip distance and mileage
• Restoration Fit: OE-style design maintains authentic interior appearance
Over time the small reset knob can become worn, cracked or lost during instrument servicing. Without the knob, the trip odometer cannot be reset easily. Installing a new OE Match replacement restores full functionality of the speedometer system and preserves the authentic interior appearance of classic Porsche models.
Consider replacing the reset knob if you notice:
• Missing or broken speedometer reset knob
• Difficulty resetting the trip odometer
• Worn or damaged instrument control
• During dashboard or instrument cluster restoration
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90174119122
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 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

Fits:
Porsche 911 1976-1989
Porsche 911 (930) 5/1986-1988
Porsche 912E 1976
Porsche 928 1977-1995
Porsche 944 1982-1991
PLEASE NOTE:
If you cannot count the teeth on the main gear then count the teeth of the next gear that it meshes with. If your tooth count is 49: 20x21, 48: 20x22, 47: 20x23, 41: 20x29, 40: 20x30, 38: 20x32
Need to open speedometer to determine correct style and tooth count required for your vehicle.
- 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)

There are potentially two gears that can go bad. First is the gear on the side of the speedometer. If your gear is metal then you will not need this gear. If it is plastic inspect closely where the shaft comes through the gear as there will generally be a hairline crack and the gear must fit tight.
Fits:
Porsche 911 1965-75
Porsche 912 1965-75
Porsche 914 1970-76
Porsche 924 1976-88
Porsche 944 1982-91
Porsche 968 1992-95
Please note:
Need to open speedometer to determine correct style and tooth count required for your vehicle. It is always best to check you old gear before ordering.
- 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
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