Piston Ring Compressor Tool for 3.780" Bore, 4.8L Engines

Precision Piston Ring Compression Made Easy. Included 1 Compressor, 2 Levers, 1 Safety Valve. Step 1 — Connect the compressor to the engine's cylinder head. ✔ 120‑Volt Power Reducing Strain — Smooth operation for tough ring applications.