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OEM Reference Part Number 3684429 Driver Testimonial:
15% higher torque capacity
OEM Reference Part Number 146-9445
Designed to Protect Critical Engine Components
made from rugged lava shield material
PDI Big Boss Performance Dual Oil Cooler for Cummins X15 | ISX CAT C7 TURBO OEM Reference Part Number 3684429Available for: 1999 2024 Cummins X15 and ISX Engines Key Benefits Dual high efficiency cooler packs 75% more oil cooling capacity Lowers peak oil temperature 20 30 degrees Thermostat and bypass valve included Complete new casting and assembly Made in the USA Warranty: 1 Year Unlimited Mileage Warranty Introducing the Big Boss Performance Dual Oil Cooler for Cummins X15 and ISX Engines, the ultimate solution for keeping your engine's oil cool and