Skip to content
Search parts

AMR3918G - Reverse Light Switch – R380

Original price - Original price €32,20
Original price
€32,20
€32,20 - €32,20
Current price €32,20
OEM Part
OEM: Made by an Original Equipment Manufacturer. This part is made by an original equipment manufacturer or under their license, ensuring compatibility and quality.
Brand Lucas
Reverse Light Switch for the R380 5-speed manual gearbox, completing the reverse lamp circuit when reverse gear is engaged.

This switch threads into the R380 gearbox casing and is actuated mechanically by the gear selector mechanism on selection of reverse gear. A failed switch will result in the reverse lamps remaining unlit when reversing.
Vehicle Model Land Rover Defender up to 2016
Land Rover Discovery 1 1989-1998 (L318)
Land Rover Discovery 2 1998-2004 (L318)
Range Rover Classic up to 1994
Range Rover Classic 1994-2001 (P38)
Fitment Notes DEFENDER 1987-2006 — Manual R380 5-speed gearbox, extension case. From VIN (V)MA949875
DISCOVERY 1 1989-1998 — Manual R380 gearbox, extension case. From FA393361 to WA799999 (break MA109621)
DISCOVERY 2 1998-2004 — Manual R380 5-speed gearbox, extension case
RANGE ROVER P38 1994-2001 — Manual R380 5-speed gearbox, extension case
RANGE ROVER CLASSIC — Late models with R380 gearbox (not listed on JLR/AllMakes; retained from existing data, verify if uncertain)
JLR comment: Also serviced as part of a kit, Transmission R 380
Alternative Codes
AMR3918GAMR3918CDU51LCDU61LJM-90400

In stock 10 units
9 · Gouda 1 · Drachten
Express delivery available

When will my order arrive?
  • Order before 15:00 (Mon–Fri): same-day dispatch for in-stock items.
  • UPS Express (order before 14:00): dispatched today, delivered tomorrow where available.
  • Netherlands / Belgium / Germany: 2–4 working days.
  • Other EU countries + UK: 4–8 working days.
  • Outside EU/UK: delivery times vary — contact us for an estimate.

Items may ship from multiple warehouses at no extra cost.

Job kits containing this part

This part is included in 0 job kit(s) below. Pick the kit that matches your vehicle and job, then add what you need.

Frequently asked questions

What does the AMR3918G reverse light switch do?
The AMR3918G reverse light switch completes the reverse lamp circuit when reverse gear is selected on the R380 manual gearbox. It threads into the gearbox casing and is operated mechanically by the gear selector when you engage reverse, switching on the reversing lights. This is the Lucas OEM switch.
Where is the reverse light switch located?
The reverse light switch threads directly into the R380 5-speed manual gearbox casing. The gear selector mechanism trips it when reverse is engaged. On Land Rover models with the R380 box it's typically accessed from under the vehicle at the gearbox, so the switch can be reached without removing the gearbox.
Why are my reverse lights not working?
Reverse lights that stay off when reverse is engaged are often caused by a failed reverse light switch on the R380 gearbox. The contacts wear or corrode and stop completing the circuit. Before replacing it, check the bulbs and wiring, then test the switch, since these are common failure points on the R380.
Which Land Rover models use this R380 reverse light switch?
It fits the R380 5-speed manual gearbox in the Land Rover Defender 1987-2006, Discovery 1 (from FA393361), Discovery 2 1998-2004, and Range Rover P38 1994-2001. It only suits the R380 gearbox, so confirm your vehicle has the R380 manual box rather than the LT77 or an automatic.