View Suitable For / Model Application
TRANSDUCER SPEEDOMETER - UD20990A1-X
This is the transducer in the side of the gearbox that sends the signal to the speedo head. Please note that occasionally we have noted instances where either the speedometer drive or indeed the complete gearbox has been replaced by a later version, with the inclusion of the later speedometer transmitter. The later transmitter is equipped with a different fixing nut, but may be identified by the number on the flat face of the casing (original units only), : 317986 01 = UD20990A1 ; 327206 01 = UD24231.
Model Application Summary:
Bentley: Continental 1985-1987 (9030 to 16968) | Eight 1984-1987 (8862 to 16954) | Mulsanne 1980-1987 (1009 to 16930) | Mulsanne Turbo 1982-1984 (4233 to 8536) | T2 1976-1981 (30001 to 41601)
Rolls-Royce: Corniche 1977-1982 (30001 to 50757) | Corniche 1981-1986 (1557 to 16968) | Silver Shadow II 1976-1981 (30001 to 41601) | Silver Spirit 1980-1986 (1001 to 16930) | Silver Spur 1980-1987 (1006 to 16970) | Silver Wraith II 1977-1981 (30083 to 41648)
Please contact our parts team if you have any questions regarding this part and suitable fit for your vehicle.
Related Catalogues:
Automatic Speed Control chassis numbers 30003-50002 (2-door cars, Solex Carburetor)- 3-Speed Gearbox Speedometer Drive & Govenor
- Speedometer Drive, Transmitter, & Governor, Silver Spirit & Mulsanne, chassis numbers 01001-09200
- Speedometer Drive, Transmitter, & Governor, Silver Spirit & Mulsanne, chassis numbers 09203-16930
- Instruments, chassis 12001-16970
- View more
| Model | Chassis Start | Chassis End | Start Year | End Year | Additional Info |
|---|---|---|---|---|---|
| Continental | 9030 | 16968 | 1985 | 1987 | |
| Corniche | 30001 | 50757 | 1977 | 1982 | |
| Corniche | 1557 | 16968 | 1981 | 1986 | |
| Eight | 8862 | 16954 | 1984 | 1987 | |
| Mulsanne | 1009 | 16930 | 1980 | 1987 | |
| Mulsanne Turbo | 4233 | 8536 | 1982 | 1984 | |
| Silver Shadow II | 30001 | 41601 | 1976 | 1981 | |
| Silver Spirit | 1001 | 16930 | 1980 | 1986 | |
| Silver Spur | 1006 | 16970 | 1980 | 1987 | |
| Silver Wraith II | 30083 | 41648 | 1977 | 1981 | |
| T2 | 30001 | 41601 | 1976 | 1981 |
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