PDI BIG BOSS™ CUMMINS X15 CAMSHAFT | 3690406 CAT Cylinder Head The PDI Big Boss Turbo

The PDI Big Boss Turbo is made as an upgrade for most CAT engines with serial number prefixes 5EK

One (1) Premium Microfiber Round Pad

Fits most 20"

OEM Reference Part Number 6395633

Big Boss performance radiators for Peterbilt 389 models feature a dimpled tube design to allow coolant more time to cool properly for more demanding applications

PDI BIG BOSS™ CUMMINS X15 CAMSHAFT | 3690406 CAT Cylinder Head The PDI Big Boss TurboAvailable for: Cummins X15 2017 2021 Key Benefits Made from all new material Trusted Quality No core charge Direct OEM replacement Made in the USA Warranty: 1 Year Unlimited Mile Warranty Features: Our premium grade, high quality camshafts, specifically designed for Cummins X15 Common Rail engines. Engineered with precision and crafted from the finest materials, our camshafts are the standard of performance and durability. We believe in providing only