Pistons and Piston Rings
This category covers pistons, piston rings and matching cylinder liners for diesel engines used in agricultural and industrial machinery. Agroparts supplies these parts as the exclusive Emmark UK distributor for Romania and Hungary.
Browse by brand — Pistons & Rings
The piston transfers combustion pressure to the crankshaft, while the piston rings seal the combustion chamber, control oil and manage heat transfer to the cylinder wall. Each part is matched to the engine by engine number or OEM code, and where the engine has been rebored, pistons, rings and liners are supplied in the correct size (STD, +0.25, +0.50 and beyond). We hold pistons and ring sets in stock in Oradea for many common diesel engines, covering brands including Perkins, John Deere, Cummins, Massey Ferguson, Fiat and more. If you send us the engine number or OEM code, our engine specialists confirm the exact piston, ring set and liner before you order.
Brands we cover
…and many other engine & machine brands. Find a part →
Frequently asked questions
How do I order the correct piston and rings?
Send us the engine number or the OEM code from the old part. Our specialists confirm the exact piston, ring set and liner before you order, so you receive parts that fit your engine.
Do you supply oversize pistons and liners for a rebored engine?
Yes. Pistons, rings and cylinder liners are available in standard and reconditioning sizes such as +0.25 and +0.50. Tell us the reconditioning size your engine was machined to and we match the parts to it.
Which engine brands do you cover?
We cover a wide range of diesel engines used across agricultural and industrial machinery, including Perkins, John Deere, Cummins, Massey Ferguson, Fiat and more. Check availability by engine number or OEM code.
Can’t find the part you need?
Send us the OEM number or the engine, and we confirm the right part before you order.