Oil Cooler | Caterpillar 3406E, C15, C16 & C18 Engines | Replaces OE# 1330125, 0R5511, 0R5601, 0R9056, and More

Heavy-duty diesel engines operate under extreme thermal and mechanical stress, making proper cooling absolutely critical. That’s why Heavy Duty Kits proudly offers this brand-new replacement oil cooler from Interstate-McBee, built to deliver reliable performance and protect your engine in the most demanding conditions.

Designed to fit Caterpillar 3406E, C15, and C16 engines, this oil cooler ensures optimal heat dissipation to help prevent overheating, reduce wear, and extend the life of your engine. Whether you’re hauling long miles in a Class 8 truck or running heavy machinery on a job site, you can count on this component to maintain consistent oil temperatures and peak operating efficiency.

Manufactured to meet or exceed OEM specifications, this oil cooler is fully compatible with the following OE reference numbers:

OEM Cross References: 0R5511, 0R5601, 0R9056, 133-0125, 1330125, 299-1996, 2991996, 2W1008, 2Y8928, 4N0619, 4W6039, 6N0169, 6N8856, 7C3039, 7W2164

Fits Engine Models: Caterpillar 3406E, C15, C18 and C16

Why Choose This Oil Cooler from Interstate-McBee?

• Built to handle high-pressure, high-heat diesel applications

• Precision-engineered for a direct fit and easy installation

• Backed by the trusted quality of Interstate-McBee

• Helps reduce engine wear and prolong component life

Don’t risk downtime or costly repairs—upgrade your engine’s cooling system today with a premium oil cooler from Heavy Duty Kits.