Pinnegar Diesel & Marine provides reliable, high-quality service for diesel and marine engines at a fair price. With over 15 years of experience, we specialize in Duramax and Cummins engines, offering complete diagnostics, custom builds and rebuilds, and component repairs. From injectors and injection pumps to head gaskets, head studs, and fire ring kits, every job is backed by a strong warranty and our commitment to quality workmanship.

We also provide expert marine propulsion services, including full diagnostics, engine removal and repair, cracked block and manifold replacement, and custom marine engine builds. Our team services all major brands such as Mercruiser, Volvo, and Cobra, and handles outdrives, gimbal bearings, impellers, steering, trim components, overheating issues, electrical and wiring problems, and trailer repairs.

Our shop is conveniently located in Orem, Utah, just off the freeway, and stocked with a wide selection of diesel and marine parts and components. We take pride in offering timely service, reasonable pricing, and honest communication that keeps our customers coming back.

Give us a call to discuss your Duramax, Cummins, or marine engine needs and find out how we can help get you back up and running.