NAF500010 | Starter Motor Solenoid Assembly - 2.5L 5 Cyl Td5 | Defender 1987-2006
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To check the stock of Genuine Parts before placing an order please use our Contact Us page
Land Rover Part Number: NAF500010 - Starter Motor Solenoid Assembly
NAF500010 is a Starter Motor Solenoid Assembly fitted to 2.5L 5 Cyl Td5 diesel engines on Defender models. As a heavy-current switching device, the unit uses an electromagnetic plunger to close the main electrical contact and simultaneously push the starter pinion into engagement with the flywheel ring gear; the contacts and return mechanism are built for frequent duty cycles to isolate the starter circuit when the engine is running. Failure typically presents as no crank or a single-click at the starter, and replacement restores correct engagement and current flow for reliable starting.
Use the compatibility data below to confirm fitment against your V.I.N.
Compatibility
- Defender (1987-2006) - 2.5L 5 Cyl Td5 Turbo Diesel
Frequently Asked Questions
The solenoid is the starter motor's high-current switch on 2.5L 5-cylinder Td5 engines. An electromagnetic plunger closes the main contact to deliver battery current to the starter and pushes the starter pinion to mesh with the flywheel; the assembly also isolates the starter once the engine is running. Common failure is a no-crank condition or a single-click from the starter, indicating replacement is required to restore correct engagement and current flow.
| Model | Variant |
|---|---|
| Land Rover Defender (1987-2006) | 2.5L 5 Cyl L/R Turbo Diesel |
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 solenoid if the starter fails to engage (no crank) or produces a single-click, or if engagement is intermittent; inspect the unit when experiencing starting problems, as there is no standard timed replacement interval.
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