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STC77220 - Piston ring set diesel .020" (per piston) Engine Part Land Rover Range Rover Defender, Series

STC77220 - Piston Ring Set – Diesel – +20 – Per Piston

- €16,30
€16,30
€16,30 - €16,30
€16,30
OEM Part
OEM: Made by an Original Equipment Manufacturer. This part is made by an original equipment manufacturer or under their license, ensuring compatibility and quality.
Piston Ring Set for the 2.25L and 2.5L naturally aspirated diesel engine, supplying the ring pack for one piston.

The rings seat in the piston ring grooves and run against the cylinder bore, sealing the combustion chamber against blow-by and controlling the oil film on the bore wall. This set is machined 0.020" (+20) oversize for a cylinder that has been rebored to the first oversize; one set is required per cylinder.
Vehicle Model Land Rover Defender up to 2016
Land Rover Series 2 and 3
Fitment Notes DEFENDER 1986-2006 — 2.5L NA diesel, piston ring set 0.020" oversize
SERIES 2 & 3 — 2.25L diesel, piston ring set 0.020" oversize
Alternative Codes
RTC419320STC77220RTC241520RTC277620RTC305320STC772220

In stock 3 units
2 · Gouda 1 · 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 diesel piston ring set used for?
The piston ring set seals one piston in the 2.25L and 2.5L naturally aspirated diesel engine. The rings seat in the piston grooves and run against the cylinder bore, sealing the combustion chamber against blow-by and controlling the oil film on the bore wall.
How many piston ring sets do I need for a rebuild?
This set covers one piston, so you'll typically need four sets for the four-cylinder 2.25L or 2.5L diesel engine. Each cylinder gets its own ring pack, so match the quantity to the number of pistons being rebuilt.
What does the +20 oversize mean?
The +20 marking means the rings are machined 0.020 inch oversize, sized for a cylinder that's been rebored to its first oversize. Standard rings won't seal a rebored bore, so confirm your machining size before ordering.
Which engines does this ring set fit?
It fits the 2.5L naturally aspirated diesel in the Defender 1986-2006 and the 2.25L diesel in the Series 2 and 3. Both use this 0.020 inch oversize ring pack once the block has been rebored.
What are the signs worn piston rings need replacing?
Worn piston rings typically show as blue exhaust smoke, high oil consumption and lost compression from blow-by past the pistons. Rings are usually renewed as a set during an engine rebuild or rebore, not in isolation.

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