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FRC5440 - Diff Lock Ring

- €75,00
€75,00
€75,00 - €75,00
€75,00
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.
Differential Lock Ring for the LT230 transfer box. It operates on the front output shaft as part of the centre differential lock mechanism, engaging the lock so both output shafts are driven together.
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
Fitment Notes DEFENDER 1987-2016 — LT230 transfer box front output shaft differential locking ring (incl. Puma 2007-2016; 13D output shaft variant)
DISCOVERY 1 1989-1998 — From VIN FA393361 to WA799999, transfer box front output shaft diff locking ring
DISCOVERY 2 1998-2004 — transfer box front output shaft diff locking ring
RANGE ROVER CLASSIC 1986-1991 — To VIN HA610293, differential lock ring
Alternative Codes
FRC5440

Available to order 2–3 weeks

Not currently in stock. Order now — typically ships within 2–3 weeks.

Need it faster? Contact us about express import (2–5 business days).

When will my order arrive?

This item is ordered from our supplier on request. Typical lead time is 2–3 weeks from order confirmation.

  • Netherlands / Belgium / Germany: 2–4 working days after dispatch.
  • Other EU countries + UK: 4–8 working days after dispatch.
  • Outside EU/UK: contact us for an estimate.

Need it faster? Express import available in 2–5 business days — contact us before ordering.

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 is the FRC5440 diff lock ring?
The FRC5440 is the differential lock ring for the LT230 transfer box. It operates on the front output shaft, engaging the centre differential lock so both output shafts are driven together.
Which models use it?
It fits the LT230 transfer box on the Defender 1987 to 2016 (including Puma), Discovery 1 (VIN FA393361 to WA799999), Discovery 2 (1998 to 2004) and Range Rover Classic 1986 to 1991 (to VIN HA610293).
Why would the diff lock ring need replacing?
The lock ring's dog teeth typically wear or round off, so the centre diff lock will not engage or jumps out under load. Replace it when the diff lock stops holding.