MR CARTOOL Piston Ring Compressor Set (6 Rings, 2.8-4.6″)

This MR CARTOOL Piston Ring Compressor Tool Set delivers a complete engine maintenance solution with six precision-engineered piston rings and adjustable installer pliers. Designed for passenger cars, trucks, and racing engines, the set covers a wide size range (2 7/8"–4 5/8" / 73–111mm), ensuring compatibility with most common applications.

The ratchet-locking design secures rings with consistent tension, eliminating hand fatigue during compression or expansion. Forged from high-grade steel with a durable black coating, these rings resist wear, corrosion, and extreme engine temperatures. The included carry case keeps components organized and protected for hassle-free storage and transport.