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RTC418830 - Piston – 2.25L Petrol – +0.030" O/S Engine Part Land Rover Range Rover Defender, Series

RTC418830 - Piston – 2.25L Petrol – +0.030" O/S

- €33,90
€33,90
€33,90 - €33,90
€33,90
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 for the 2.25L four-cylinder petrol engine, machined to +0.030" oversize for a rebored cylinder block.

The piston runs in the cylinder bore and transmits combustion pressure through the gudgeon pin and connecting rod to the crankshaft. The oversize dimension restores the correct piston-to-bore clearance once the block has been rebored 0.030" during an engine rebuild.
Vehicle Model Land Rover Defender up to 2016
Land Rover Series 2 and 3
Fitment Notes SERIES 2/3 1958-1985 — 2.25L 4 Cyl Petrol, .030" oversize (rebuild)
DEFENDER 1983-1985 — 2.25L 4 Cyl Petrol, .030" oversize (rebuild)
Alternative Codes
RTC418830597502BR 3085ERC851530RTC286330

In stock 8 units
4 · Gouda 4 · 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 the RTC418830 piston used for?
The RTC418830 is a piston for the Land Rover 2.25L four-cylinder petrol engine, machined to +0.030" oversize. It runs in the cylinder bore and transmits combustion pressure through the gudgeon pin and connecting rod to the crankshaft. It's an engine rebuild part.
What does the +0.030" oversize mean on this piston?
The +0.030" oversize means the piston is 0.030" larger than standard, sized to suit a cylinder block that has been rebored 0.030". This restores the correct piston-to-bore clearance during a rebuild. It won't fit a standard bore or a block rebored to a different oversize.
How many pistons are needed to rebuild a 2.25L engine?
A full rebuild of the 2.25L four-cylinder petrol engine typically needs four pistons, one per cylinder. They're usually fitted as a matched set so all four bores share the same +0.030" oversize and clearance. Confirm your rebore size before ordering.
Which Land Rovers use this 2.25L oversize piston?
This 2.25L petrol piston fits the Land Rover Series 2 and 3 (1958-1985) and the early Defender (1983-1985), both with the 2.25 four-cylinder petrol engine. It's for engines rebored to +0.030" oversize during a rebuild.

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