300TDI Engine Parts
Defender 300TDI engine parts for routine servicing, timing belt replacement, oil leak repairs, auxiliary belt work and engine rebuilds, including filters, timing components, gaskets, seals, belts, tensioners, pumps and engine fixings.
Start with the job and the part being replaced, then check the product page for the original part number, brand, kit contents and any early or later fitment notes. Many 300TDI components are shared with Discovery 1 and Range Rover Classic, while filters and surrounding engine parts can remain Defender-specific.
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300TDI Timing Belt / Cambelt Kit – Gates PowerGrip & INA Bearings
Original price was: £160.93.£149.66Current price is: £149.66. inc. UK VATYBX3642 | Defender, Discovery & Range Rover Starter Battery – Yuasa 110Ah 925CCA
Defender 300TDI Service Kit – Mann & Mahle Filters
Original price was: £32.69.£31.06Current price is: £31.06. inc. UK VATFind the right Defender 300TDI engine parts
Defender 300TDI engine parts are normally bought by service or repair job. Start with routine servicing, timing belt components, engine sealing, auxiliary belt drive or internal engine parts, then confirm the individual part number and supplied components.
| Job | Best place to start | Check before ordering |
|---|---|---|
| Routine engine servicing | 300TDI service kits, individual filters and 15W-40 engine oil | Defender filter fitment, kit contents, oil specification and the quantity required |
| Timing belt replacement | 300TDI timing belt kits, belts, tensioners, idlers and timing gears | Check the kit contents and match individual timing parts by reference |
| Oil leaks and sealing work | Rocker cover gaskets, camshaft and crankshaft seals, timing-cover gaskets and sealing washers | Seal position, gasket identification and original part number |
| Auxiliary belt drive | Early and later drive belts, belt tensioners and related pulleys | Belt reference, belt length and early or later fitment |
| Starting, charging and fuel supply | Starter motors, alternators, fuel filters, lift-pump parts and glow-plug components | Electrical connections, output rating, vehicle fitment and original reference |
| Engine strip and repair work | Head gaskets, top-end gasket sets, cylinder-head bolts, bearings, studs and engine fixings | Gasket thickness, component size, quantity and included fixings |
Check Defender 300TDI fitment before ordering
The 300TDI engine shares many service, timing and internal components across Defender, Discovery 1 and Range Rover Classic. Surrounding parts can still differ by vehicle and production detail, so use the product title, original part number and fitment notes together.
Air filters, hoses and surrounding installation parts may differ from Discovery 1 and Range Rover Classic fitment.
Auxiliary belts and related drive components can have early or later fitment differences.
Head gaskets and other sealing parts may require the thickness, hole count, position or original reference to be checked.
Check exactly which filters, bearings, belts, gaskets, washers, bolts or seals are included.
Genuine, OEM and aftermarket 300TDI engine parts
Individual product pages identify the brand or quality level where that information is available. Use the stated brand, part number, fitment and supplied components when comparing Defender 300TDI engine parts.
| Part type | How it is shown on Twinwoods 4x4 |
|---|---|
| Genuine Land Rover | Genuine parts are identified as Genuine Land Rover where that status is confirmed. |
| OEM or OE-supplier | OEM and OE-supplier parts are identified where the product data supports that claim. |
| Aftermarket replacement | Aftermarket products cover selected service, replacement and engine-repair parts where Genuine or OEM supply is not required or not stated. |
Related Defender 300TDI sections
| Section | Use it for |
|---|---|
| Defender engine parts | Other Defender petrol and diesel engine categories |
| 300TDI service kits | Defender filter kits and complete routine service packs |
| 15W-40 engine oil | Our preferred engine oil for routine 200TDI and 300TDI servicing |
| Land Rover timing belt kits | Complete 300TDI cambelt kits and individual timing components |
| Defender cooling system parts | Radiators, water pumps, thermostats, coolant hoses and cooling-system parts |
| Defender fuel system parts | Fuel filters, lift pumps, pipework, seals and related fuel-system components |









