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STC943 - Starter Solenoid – V8 Electrical Part Land Rover Range Rover Defender, Series

STC943 - Starter Solenoid – V8

- €67,90
€67,90
€67,90 - €67,90
€67,90
Aftermarket Part
Aftermarket: Quality alternative. This is a quality alternative, designed to fit and function like the original part, often at a more competitive price.
Starter Solenoid Solenoid for the Lucas 3M100 starter motor on the 3.5L V8 petrol engine.

Mounted on the starter motor body, it engages the starter drive pinion with the flywheel ring gear and closes the heavy-duty contacts that feed battery current to the motor windings when the ignition is cranked.
Vehicle Model Land Rover Defender up to 2016
Land Rover Series 2 and 3
Fitment Notes SERIES 3 109" Stage 1 — 3.5L V8 Petrol (Lucas 3M100 starter solenoid)
DEFENDER 90/110 Early — 3.5L V8 Petrol (Lucas 3M100 starter solenoid)
Alternative Codes
STC943RTC837

In stock 3 units
2 · 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 STC943 starter solenoid do?
The STC943 starter solenoid sits on the Lucas 3M100 starter motor used on the 3.5L V8 petrol engine. When you crank the ignition it engages the starter pinion with the flywheel ring gear and closes the heavy-duty contacts that feed battery current to the motor windings.
Which Land Rovers does this V8 starter solenoid fit?
This solenoid fits the 3.5L V8 petrol engine running the Lucas 3M100 starter motor, including the early Defender 90/110 and the Series 3 109-inch Stage 1. It's an aftermarket replacement for that V8 starter setup.
What are the signs a starter solenoid is failing?
A failing starter solenoid typically gives a single click with no crank, or starts the engine only intermittently. The heavy-duty contacts wear over time and stop passing full battery current to the starter motor, so the engine won't turn over reliably.
Does STC943 replace the RTC837 starter solenoid?
Yes, STC943 is listed as a cross-reference to RTC837 for the 3.5L V8 starter solenoid, so it covers the same Lucas 3M100 application. If your old unit carries the RTC837 number, this is the equivalent replacement.