Electrical & Sensor Parts
Discovery 4 electrical and sensor parts for engine management, starting, brake-pedal switching and heated washer repairs, including VDO MAF sensors, Yuasa AGM batteries, brake light switches and Genuine heated washer jets.
Start with the component and original part number, then check the product page for engine fitment, connector, battery specification and any superseded references. MAF sensors and brake light switches have important part-number splits despite serving the same general system.
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Find the right Discovery 4 electrical parts
Electrical components are normally selected by the original part number, engine or fitted equipment. Similar-looking sensors and switches can use different internal specifications, connectors and replacement references.
| Job | Best place to start | Check before ordering |
|---|---|---|
| 2.7 TDV6 MAF sensor replacement | Continental VDO MAF sensor replacing PHF500101 | Confirm the 2.7 TDV6 engine and original PHF500101 sensor reference |
| 3.0 TDV6 or SDV6 MAF sensor replacement | Continental VDO MAF sensor replacing PHF500090 | Confirm the 3.0 diesel engine, connector and original PHF500090 reference |
| Starter battery replacement | Yuasa YBX9019 Type 019 AGM starter battery | AGM requirement, 353 × 175 × 190mm case size, terminal layout and base hold-down |
| Brake light switch replacement | LR116714 or XKB500110 brake light switch | Match LR116714, LR072647, XKB500030 or XKB500110 against the original switch |
| Heated washer jet replacement | Genuine Land Rover heated washer jet (LR048615) | Confirm heated washer equipment, original part number and electrical connection |
Check electrical fitment before ordering
Engine sensors, brake light switches and batteries should be matched by specification as well as general vehicle fitment. Use the original part number and product-specific notes rather than ordering from the component name alone.
2.7 or 3.0 MAF sensor
The 2.7 TDV6 uses PHF500101, while 3.0 TDV6 and SDV6 models use PHF500090.
The 2.7 TDV6 uses PHF500101, while 3.0 TDV6 and SDV6 models use PHF500090.
Brake switch reference
LR116714 replaces XKB500030 and LR072647, while XKB500110 is a separate Genuine Land Rover switch reference.
LR116714 replaces XKB500030 and LR072647, while XKB500110 is a separate Genuine Land Rover switch reference.
Battery specification
Confirm AGM construction, capacity, cold-cranking output, physical dimensions, terminal position and base fitting.
Confirm AGM construction, capacity, cold-cranking output, physical dimensions, terminal position and base fitting.
Connector and equipment
Check the electrical connector and whether equipment such as heated washer jets was fitted to the vehicle.
Check the electrical connector and whether equipment such as heated washer jets was fitted to the vehicle.
Related Discovery 4 sections
| Section | Use it for |
|---|---|
| Air Intake & Turbo Parts | Air filters and MAF sensors fitted to the engine air-intake system |
| Body, Lighting & Exterior | Washer equipment, exterior electrical fittings and related body components |
| Brake Parts | Brake discs, pads, wear sensors, retaining parts and brake hoses |
| Land Rover Batteries | Starter and leisure batteries grouped by specification and vehicle use |
| Discovery 4 Parts | Return to the main vehicle section for engine, cooling, suspension and drivetrain parts |
