Engine Parts - Engine Internals
Find Engine Parts - Engine Internals for your vehicle
Enter your reg and we'll show you only parts that fit — no guesswork.
Don't know your reg? Find manually
- ✓ Free delivery on orders over £40
- ✓ UK stock, dispatched from Northampton
- ✓ Filtered to your specific vehicle from DVLA data
Browse all Engine Parts - Engine Internals
- FAI Cylinder Head Gasket 1mm Thick Stainless Steel HG1783C £43.99
- FAI Crank Shaft Belt Pulley FVD1031 £27.99
- FAI Crankshaft Damper 166. FVD1092K £382.99
- FAI Crankshaft Damper 154.8mm FVD1111K £249.99
- FAI Cylinder Head Gasket Thick HG1518 £21.99
- FAI Exhaust Manifold Gasket Set OD ID High EM2401 £30.99
- FAI Crankshaft Damper Kit 152mm FVD1024K £55.99
- FAI Full Gasket Set FS982 £104.99
- FAI Crankshaft Damper Kit 153mm FVD1026K £49.99
- FAI Crankshaft Damper Kit FVD1027K £100.99
- FAI Crankshaft Damper Kit 185mm FVD1018K £76.99
- FAI Crankcase Gasket Kit ID CS1903 £40.99
- FAI Crankshaft Damper Kit FVD1035K £130.99
- FAI Crankshaft Damper Kit 152mm FVD1014K £56.99
- FAI Crankshaft Damper Kit 158mm FVD1008K £40.99
- FAI Crankshaft Damper Kit 192mm FVD1001K £81.99
- FAI Crankshaft Damper Kit FVD1013K £106.99
- FAI Crankshaft Damper Kit 161mm FVD1006K £57.99
- FAI Engine Camshaft Lobes C358 £150.99
- FAI Crankshaft Damper Kit 192mm FVD1000K £88.99
- FAI Cylinder Head Bolt Set B2400 £27.99
- Febi Intake Manifold Fitting 4 Connectors Plastic 176525 £480.99
- Febi Crank Shaft Belt Pulley 176427 £191.99
- Febi Intake Manifold Fitting Connectors Plastic 176453 £289.99
About Engine Parts - Engine Internals
NN4 Online stocks a wide range of engine parts - engine internals from established manufacturers including Apec Red, Bosch, NRF, MANN-FILTER and Mahle. Enter your registration above and we'll narrow the list to engine parts - engine internals that match your vehicle in the TecDoc catalogue. We always recommend confirming the part dimensions against your existing component before fitting, as specifications can vary between trim levels and engine variants.
All stock dispatches from our Northampton warehouse with free standard delivery on orders over £40 to most UK mainland locations. Browse the full engine parts - engine internals catalogue below, or use the registration lookup to filter to parts matched to your vehicle.
Frequently asked
How do I know a part will fit my car?
Enter your registration above and we cross-check against the TecDoc catalogue to narrow the list to engine parts - engine internals listed against your vehicle. Specifications can still vary between trim levels and engine variants, so we recommend confirming the part dimensions against your existing component before fitting.
What brands do you stock?
We stock established manufacturer brands sourced through trade channels. The brand row at the bottom of this page shows which manufacturers we carry for engine parts - engine internals. We don't sell unbranded parts.
How quickly will my order arrive?
Most orders dispatch from our Northampton warehouse within 1–2 working days. Free standard delivery on orders over £40 to most UK mainland locations.
What if the part doesn't fit?
Please check our returns policy for the current terms. If you're unsure about fitment for your specific vehicle variant, please contact our team before ordering using the details at the bottom of the site.
Can I check fitment before ordering?
Yes — every product page shows whether the part is listed against your selected vehicle. Where multiple sizes exist for the same vehicle, the dimensions are shown so you can compare against your existing part. If you're unsure, contact our team for help confirming the right option.
Brands for Engine Parts - Engine Internals
We stock engine parts - engine internals from these manufacturers — each linked to a dedicated brand page with the full range:
About Engine Parts - Engine Internals
Our engine parts - engine internals range is built from established UK suppliers and trusted aftermarket brands. Each product is mapped against OE/OEM references and TecDoc ktype data so the reg-lookup above filters to only the parts that fit your specific make, model, engine and trim.
Enter your registration to see exact-fit options — or browse by brand using the tiles above. The full catalogue covers most major makes and models on UK roads, with same-business-day dispatch on stock items ordered before 2pm.
Engine and cooling system parts
Engine and cooling parts span a wide spectrum — timing belts and chains, water pumps, alternators, starters, gaskets and seals. Some are service-interval items (timing belt every 5-10 years or 60-100k miles depending on engine), others are catch-it-early items where small failures can lead to bigger ones if ignored.
Common engine warning signs
- Whining or rattling from the front of the engine — failing belt tensioner or alternator bearing.
- Coolant loss with no visible leak — head gasket, hose or water pump seal.
- Charging warning light or dim headlights at idle — alternator output dropping.
- Slow cranking on cold mornings — starter motor or battery, both worth checking.
Don't postpone a timing-belt service
The biggest avoidable engine failure on the UK fleet is timing-belt overrun. If your service book is missing or the previous owner's record is unclear, get it checked — replacing a belt costs a few hundred pounds; replacing the engine after a belt snap on an interference engine runs into thousands.
Why buy from NN4 Online
- Reg-lookup fitment — see only the parts mapped to your specific vehicle.
- UK warehouses — most stock items dispatch same business day on orders before 2pm.
- Established brands — the brand tiles above are the full list available in this category.
- Standard returns — handled per our returns policy linked in the footer.