BIG BOSS CAT B/C MODEL STAGE 1 CYLINDER HEAD cummins x15 tuner Down facing white LED ditch

Down facing white LED ditch lights create better visibility and safety at night

Mounts two Half Fenders

PDI started with casting a new aluminum fill tube that bolts directly to the front cover of the engine

OEM Cross Reference R5237650

Core charge of $2250 refundable upon receiving cores back to our facility

BIG BOSS CAT B/C MODEL STAGE 1 CYLINDER HEAD cummins x15 tuner Down facing white LED ditchAvailable for: 1984 1992 CAT 3406B and 3406C Model Key Benefits High Nickel Casting Improved Exhaust and Intake Valves Improved Cooling Passages Stainless Retainer Clips Made in the USA Warranty: 1 Year Unlimited Mileage PDI Big Boss CAT Stage 1 Cylinder heads are meticulously designed to surpass the most demanding expectations, making them the perfect choice for heavy duty applications in trucking, construction, agriculture, and more. They exemplify