TD5 Starter Motors & Solenoid Repair
TD5 starter motors and solenoid repair parts for Defender and Discovery 2, including Denso OE-quality and aftermarket complete starters plus a contact rebuild kit for original Denso units.
A single click without cranking can be caused by worn solenoid contacts where the original Denso starter is otherwise serviceable. Slow, noisy or unreliable cranking normally points towards complete starter replacement, after the battery, earths and starter cables have been checked.
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Complete starter motor or solenoid repair?
The starter fault determines whether the existing Denso unit can be repaired or whether the complete starter motor needs replacing.
| Starter fault or requirement | Best place to start | Check before ordering |
|---|---|---|
| Single click without cranking | TD5 starter solenoid rebuild kit | For an original Denso starter with worn solenoid contacts where the motor itself remains serviceable |
| Complete replacement at a lower purchase price | NAD101240 aftermarket starter motor | Complete starter replacement for Defender TD5 and Discovery 2 TD5 |
| Denso complete replacement | NAD101240G Denso starter motor | OE-quality Denso gear-reduction starter supplied with the solenoid fitted |
Check the starting fault before replacing parts
Battery condition
A weak or discharged battery can produce slow cranking, clicking and intermittent starting faults that resemble starter failure.
A weak or discharged battery can produce slow cranking, clicking and intermittent starting faults that resemble starter failure.
Earths and main cables
Check the battery terminals, engine earths and heavy starter cable connections for looseness, corrosion or excessive resistance.
Check the battery terminals, engine earths and heavy starter cable connections for looseness, corrosion or excessive resistance.
Starter trigger wire
No click or intermittent operation can be caused by the small trigger-wire connection rather than the starter motor or solenoid contacts.
No click or intermittent operation can be caused by the small trigger-wire connection rather than the starter motor or solenoid contacts.
Starter condition
A solenoid kit repairs worn contact parts. It will not repair a starter motor that is slow, noisy, heavily worn or mechanically damaged.
A solenoid kit repairs worn contact parts. It will not repair a starter motor that is slow, noisy, heavily worn or mechanically damaged.
Denso or aftermarket TD5 starter motor?
The NAD101240 aftermarket starter provides a complete replacement at the lower price point. NAD101240G is the Denso OE-quality assembly for owners who want the established Denso starter-motor manufacturer and a long-term replacement.
Both complete starters replace NAD101240. The solenoid rebuild kit is a different repair, intended to retain a serviceable original Denso starter by renewing the worn contact parts inside its solenoid.
Related TD5 electrical sections
| Section | Use it for |
|---|---|
| TD5 batteries | Starter batteries for Defender TD5 and Discovery 2 TD5 models. |
| Defender electrical parts | Defender starting, charging, switching, lighting and general electrical components. |
| Discovery 2 electrical parts | Discovery 2 starting, charging, lighting, switching and electrical repair parts. |
| TD5 parts hub | Engine, fuel, cooling, electrical, servicing and repair parts shared across Defender and Discovery 2 TD5 models. |
