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UKC31L - Gearbox Spring – LT77/R380 Transmission or Gearbox Part Land Rover Range Rover Defender, Discovery, Range Rover

UKC31L - Gearbox Spring – LT77/R380

- €1,50
€1,50
€1,50 - €1,50
€1,50
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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.
Gearbox Spring - the synchroniser spring for the 1st and 2nd gear synchroniser assembly within the five-speed manual gearbox.

It maintains tension on the synchroniser hub so that 1st and 2nd gears engage smoothly and positively. For LT77 / R380 manual gearbox applications.
Vehicle Model Land Rover Defender up to 2016
Land Rover Discovery 1 1989-1998 (L318)
Range Rover Classic up to 1994
Fitment Notes DEFENDER 1987-2006 — 5-Speed Manual Transmission (LT77/R380)
DISCOVERY 1 1989-1998 — 4-Cyl Manual and V8 Petrol 5-Speed Manual
RANGE ROVER CLASSIC 1986-1994 — 5-Speed Manual Transmission
Alternative Codes
UKC31LBR 2145

In stock 13 units
13 · Gouda 0 · 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 UKC31L gearbox spring do?
The UKC31L is the synchroniser spring for the 1st and 2nd gear synchro assembly in the LT77 and R380 5-speed manual gearbox. It holds tension on the synchro hub so 1st and 2nd engage smoothly and positively.
Which gearboxes and vehicles use this spring?
This synchro spring fits the LT77 and R380 5-speed manual gearbox used on the Land Rover Defender, Discovery 1 and Range Rover Classic. It serves the 1st and 2nd gear synchroniser, so it's common across these manual transmission applications.
How many springs are needed for a synchro rebuild?
A synchroniser hub typically uses more than one spring, so check how many your 1st/2nd synchro assembly takes before ordering. Many rebuilders renew all the synchro springs together while the LT77 or R380 gearbox is stripped, since access is the hard part.
Is BR 2145 the same as this spring?
BR 2145 is listed as a cross-reference for the UKC31L gearbox spring, so both numbers identify the same synchro spring. If your parts list shows BR 2145, this is the correct part for the LT77 or R380 1st/2nd synchroniser.