In-Engine Valve Spring Compressor – Swap Springs Effortlessly Save time and hassle by changing your valve springs without removing the cylinder head. This In-Engine Valve...
24-Valve Competition Valve Springs (110 lb Seat Pressure) – Up to 6,500 RPM Push your high-performance Cummins beyond 4,500 RPM with confidence using our 24-Valve...
12-Valve Spring Compressor Tool – Simplify Valve Work on Your 5.9L Cummins Make valve spring maintenance a breeze with our 12-Valve Spring Compressor Tool, specifically...
Dual Spring Kit – Made in the USA, Includes Retainers & 10° Locks When higher RPM, greater valve lift, stiffer spring pressures, and larger valve...