Repco Piston Ring Groove Cleaner - RST75

Repco Piston Ring Groove Cleaner

Stuck piston rings rob your vehicle of compression, power and fuel economy. This purpose-built Repco Piston Ring Groove Cleaner quickly clears the baked-on carbon that causes rings to hang up, so fresh rings can seat properly and your engine can breathe like it should. Whether you’re freshening a daily driver, a hardworking UTE or a small engine, it’s a smarter, faster alternative to makeshift picks and risky scraping.

A sharp, precision steel cutter shaves carbon from the ring lands with control, while a heavy coil spring holds the cutter square in the groove so you get an even, repeatable clean on every piston. The adjustable body covers 50.8mm (2") to 127mm (5") diameters, giving you broad coverage across common passenger engines and compact powerplants. Built from heat-treated steel, it shrugs off workshop use and keeps its edge longer, helping you turn jobs around with fewer headaches and less rework.

If you value clean assemblies and reliable results, add this specialty tool to your engine kit. It helps restore compression, reduce blow-by and oil consumption, and extend piston life - all with the dependable quality you expect from Repco.