TD5 Starting & Charging Parts
TD5 starting and charging parts for Defender and Discovery 2, including complete starter motors, a solenoid rebuild kit, 120A alternator and vacuum-pump assemblies, and a Type 643/644 high-cranking starter battery.
Start with the fault being investigated, then check the battery, main cables and earth connections before replacing the starter motor or alternator. A single click with no cranking can point to worn starter-solenoid contacts, while slow or noisy cranking normally needs a complete starter and repeated flat batteries may indicate a charging-system fault.
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Find the right TD5 starting or charging part
Starting faults can be caused by the battery, cable connections, earths, starter solenoid or complete starter motor. Charging faults centre on the alternator assembly, although the condition of the battery and wiring should be checked before condemning a major component.
| Fault or job | Best place to start | Check before ordering |
|---|---|---|
| Weak battery or poor cold starting | Hankook MF31-1000 Type 643/644 starter battery | Physical case size, centre terminal layout, hold-down arrangement and suitability for the vehicle battery compartment |
| Single click with no cranking | TD5 starter motor solenoid rebuild kit | The starter motor should otherwise be serviceable; no click at all may point to the trigger wire, battery, cables or earths |
| Slow, noisy or unreliable cranking | Complete NAD101240 starter motor | Selected aftermarket or Denso OE-quality replacement, and confirmation that the battery and main connections are sound |
| Battery warning light or weak charging | Complete ERR6999 / LR006190 alternator and vacuum-pump assembly | Febi Bilstein or Genuine Denso assembly, charging-system test results and the condition of the vacuum-pump oil feed pipe |
Check the fault before replacing parts
Battery condition and connections
A weak battery, corroded terminals, poor engine earth or damaged starter cable can produce symptoms similar to starter-motor failure.
A weak battery, corroded terminals, poor engine earth or damaged starter cable can produce symptoms similar to starter-motor failure.
Solenoid repair or complete starter
The contact kit repairs the common click-no-crank fault where the starter motor itself remains healthy. Slow, noisy or worn starters normally require complete replacement.
The contact kit repairs the common click-no-crank fault where the starter motor itself remains healthy. Slow, noisy or worn starters normally require complete replacement.
Alternator and vacuum pump
The TD5 alternator is supplied as an assembly with the vacuum pump fitted. Check both charging performance and the surrounding oil feed pipework.
The TD5 alternator is supplied as an assembly with the vacuum pump fitted. Check both charging performance and the surrounding oil feed pipework.
Defender or Discovery 2
The starter motors and alternators shown fit both Defender TD5 and Discovery 2 TD5. Battery fitment also depends on the physical case size and terminal arrangement.
The starter motors and alternators shown fit both Defender TD5 and Discovery 2 TD5. Battery fitment also depends on the physical case size and terminal arrangement.
TD5 starter and alternator choices
The complete starter motors and alternators are available at different brand and quality levels. Compare the manufacturer, complete assembly contents and replacement references shown on each product page.
| Product | Main distinction |
|---|---|
| Selected replacement starter motor | New aftermarket NAD101240 starter motor for replacing a tired or failed original unit. |
| Denso starter motor | Denso OE-quality gear-reduction starter supplied complete with its integral solenoid. |
| Febi Bilstein alternator | Branded 120A alternator supplied as a complete assembly with the vacuum pump fitted. |
| Genuine Denso alternator | Genuine Denso 120A alternator assembly supplied with the vacuum pump and pulley fitted. |
| Solenoid rebuild kit | Internal contact and plunger parts for repairing a serviceable starter motor with the common click-no-crank fault. |
Related TD5 electrical sections
| Section | Use it for |
|---|---|
| TD5 starter motors and solenoid repair | Compare the complete starter motors and the solenoid contact repair kit. |
| TD5 alternators | Compare Febi Bilstein and Genuine Denso alternator and vacuum-pump assemblies. |
| TD5 batteries | Starter and dual-purpose batteries suitable for stated Defender TD5 and Discovery 2 installations. |
| Defender electrical parts | Wider Defender starting, charging, lighting, switching, wiring and electrical components. |
| Discovery 2 electrical parts | Wider Discovery 2 electrical, lighting, starting and charging components. |
| Electrical and testing equipment | Battery, voltage and electrical testing equipment for checking the system before replacing parts. |
