Caterpillar has been the global leader in heavy-duty diesel power for nearly a century, engineering engines that move the world's most demanding industries. From massive mining haul trucks to marine vessels and power generation, CAT engines are synonymous with raw power and uncompromising durability. Their ACERT™ technology and advanced electronic control systems deliver optimal performance while meeting stringent emissions standards. Whether it's the legendary 3406, the workhorse C7, or the powerful C15, Caterpillar engines provide the torque, efficiency, and longevity that operators depend on in the harshest environments on earth.

For all your Caterpillar diesel engine needs, RF Engine delivers the quality parts and expertise you require. We maintain an extensive inventory of new aftermarket, remanufactured, and quality used CAT engines and components to keep your equipment performing at peak efficiency. From complete long blocks to individual parts, our comprehensive selection covers the full range of Caterpillar models. Whether you're rebuilding a classic 3406 or maintaining a modern C-Series engine, RF Engine provides the reliable Caterpillar parts you need at competitive prices, backed by knowledgeable support that keeps your operation running strong.