PRC2911 | Reverse Lamp & Diff Lock Switch - LT77 | Defender, Range Rover Classic
To check the stock of Genuine Parts before placing an order please use our Contact Us page
To check the stock of Genuine Parts before placing an order please use our Contact Us page
To check the stock of Genuine Parts before placing an order please use our Contact Us page
To check the stock of Genuine Parts before placing an order please use our Contact Us page
To check the stock of Genuine Parts before placing an order please use our Contact Us page
Land Rover Part Number: PRC2911 - Reverse Lamp and Differential Lock Switch
PRC2911 is a combined reverse lamp and differential lock electrical switch fitted to the LT77 gearbox and LT230 transfer box. It provides the electrical switching for the reverse lamp circuit and operates the differential lock mechanism on vehicles equipped with these units. Faults typically present as an inoperative reverse lamp or failure of the differential lock to engage; replace the unit if intermittent contact, corrosion, or failure is confirmed. When fitting, ensure correct wiring and a clean mounting surface.
Compatibility
- Defender (1987-2006) - Reverse lamp to VIN FA410277; Diff lock to VIN 2A642630
- Discovery 1 (1989-1998) - LT77/LT230 - Reverse lamp from VIN FA393361 to WA799999; Diff lock
- Discovery 2 - Diff lock to VIN 2A999999
- Range Rover Classic (1986-1991) - Reverse lamp to VIN HA610293
- Range Rover Classic (1992-1994) - Reverse lamp from VIN JA610294
Frequently Asked Questions
PRC2911 is a combined electrical switch that provides the signal for the reverse lamp and also operates the differential lock when fitted to LT77 gearboxes and LT230 transfer boxes. It completes the reverse lamp circuit when the gearbox is in reverse and actuates the differential lock circuit when the transfer box requires engagement. Typical faults are contact wear or corrosion causing intermittent operation or complete failure, so replace if these symptoms are present.
| Model | Variant |
|---|---|
| Land Rover Defender (1987-2006) | Reverse lamp - to VIN FA410277; Differential lock - to VIN 2A642630 |
| Land Rover Discovery 1 (1989-1998) | LT77 / LT230: Reverse lamp from VIN FA393361 to WA799999; Differential lock |
| Land Rover Discovery 2 | Differential lock - to VIN 2A999999 |
| Land Rover Range Rover Classic (1986-1991) | Reverse lamp - to VIN HA610293; Differential lock |
| Land Rover Range Rover Classic (1992-1994) | Reverse lamp - from VIN JA610294 |
If you are unsure of compatibility with your vehicle, you can also confirm by checking against your V.I.N. Simply reach out to us with your V.I.N and desired part number via our Contact page or use our Finding Part Numbers page.
Replace the switch if the reverse lamp fails to illuminate when selecting reverse or the differential lock will not engage, or if the switch operates intermittently. Inspect wiring and connections during diagnosis and consult the vehicle workshop manual or a qualified technician if unsure.
- C8 products are usually supplied by Britpart.
- L8 products are genuine Land Rover parts.
- Z8 products are normally supplied by Allmakes.
All products and accessories available on LRDirect.com come with a 2-year warranty.