Pay in 4 interest-free payments of $73.75 Learn more
Ships within 48 hours · Estimated delivery Sep 19 - Sep 24
Solenoid Pack Inspected & Tested
Six (6) Universal CreditsRequired for ECM unlocking and flashing
Built transmission
Instructions (Click Here)
Received within 31–45 calendar days: 50% refund — $750
Big Boost Valve Spring Kit | 1998.5 - 2024 Cummins Duramax L5P Hard Parts Solenoid Pack Inspected & TestedFrom daily drivers and heavy duty tow rigs to full blown drag strip builds, these springs are engineered to handle everything from mild upgrades to wild performance. Unlock the full potential of your Cummins engine with the Performance Diesel Worx Big Boost Valve Spring Kit, engineered for superior performance, durability, and reliability. This complete drop in package delivers 103 lbs. of seat pressure and 176 lbs. of open pressure at 0. 420
