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RTC418840 - Piston Assembly – 2.25L Petrol – 0.040" Oversize by AftermarketEngine Part Land Rover Range Rover Defender, Series

RTC418840 - Piston Assembly – 2.25L Petrol – 0.040" Oversize

- €34,80
€34,80
€34,80 - €34,80
€34,80
Aftermarket Part
Aftermarket: Quality alternative. This is a quality alternative, designed to fit and function like the original part, often at a more competitive price.
Piston Assembly - 0.040" Oversize for the 2.25L 4-cylinder petrol engine as fitted to the Land Rover Defender and Series II, IIA, and III.

Designed for use in engines where the cylinder bores have been rebored to 0.040 inches over standard diameter. The oversize piston restores the correct bore-to-piston clearance required for proper sealing, compression, and oil control following a cylinder rebore.
Vehicle Model Land Rover Defender up to 2016
Land Rover Series 2 and 3
Fitment Notes DEFENDER 1983-2006 — Piston assembly, 2.25L 4-cylinder petrol, 0.040" oversize
SERIES II/IIA/III — 2.25L 4-cylinder petrol, 0.040" oversize
Alternative Codes
RTC418840597503ERC851540RTC286340

In stock 5 units
5 · Gouda 0 · Drachten
Express delivery available

When will my order arrive?
  • Order before 15:00 (Mon–Fri): same-day dispatch for in-stock items.
  • UPS Express (order before 14:00): dispatched today, delivered tomorrow where available.
  • Netherlands / Belgium / Germany: 2–4 working days.
  • Other EU countries + UK: 4–8 working days.
  • Outside EU/UK: delivery times vary — contact us for an estimate.

Items may ship from multiple warehouses at no extra cost.

Job kits containing this part

This part is included in 0 job kit(s) below. Pick the kit that matches your vehicle and job, then add what you need.

Frequently asked questions

What is this piston assembly used for?
This piston assembly rebuilds the 2.25 litre four-cylinder petrol engine used in the Land Rover Defender and Series II, IIA and III. It's supplied at 0.040" oversize for engines whose bores have been rebored 0.040 inches over standard, restoring the correct piston-to-bore clearance.
What does 0.040" oversize mean?
The 0.040" oversize marking means the piston is 0.040 inches larger than standard diameter, matched to a cylinder block rebored to that size. A block at standard bore needs standard pistons. Measure the rebored bore before ordering so the clearance is right.
How many pistons are needed for the engine?
The 2.25 petrol is a four-cylinder engine, so a full rebuild typically needs four matched pistons at the same oversize. Check whether this listing is a single piston or a set before ordering, and keep all four to one oversize.

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