Light Truck Service                              Diesel Fuel Injection Service


Fourteen years ago Wentland Diesel Service moved to the location on Oregon Highway 11 where we have provided two basic services: (1) Diesel fuel injection service and sales, and (2) Light duty diesel truck service and repair.

Wentland Diesel Service has entered into a sale agreement to sell the light duty diesel truck service and repair portion of the business to Dave and Carolyn Carter.  Their new business name will be Dave’s Diesel Technology. The sale divides the business and won’t take any services away.

Wentland Diesel Service will continue to service and sell fuel injection products and has moved to 85641 Winesap Rd, the same location that we occupied for 25 years before moving to the Highway 11 location.

Injector Testing for High Pressure Common Rail


Fuel Injection Pump and Injector Service

Our Shop
We are equipped to service the diesel fuel injection and turbocharger systems on automotive, agriculture and industrial equipment.

Fuel Injection Service
At Wentland Diesel Service, we have 44 years of experience in the rebuilding and repair of diesel fuel injection pumps and injectors. We are troubleshooting specialists and are prepared to solve any fuel injection problem that you may have. Our technicians regularly attend factory service schools. You can be assured that our service and recommendations are current and are as specified by the original equipment manufacturer. We also do on-vehicle repair of diesel fuel injection system and related components.

About Us

Lorin Wentland – Born and raised locally, started Wentland Diesel Service in 1972 when he began servicing diesel fuel injection systems. He is factory trained in Bosch, Cummins, CAV, and Stanadyne fuel systems. Lorin has 44 years experience in diagnosing and servicing diesel engines and is knowledgeable in the field of light duty truck diesel performance.

Our Location

Hours of Operation
Monday - Thursday
8:00 a.m - 5:30 p.m.
Friday (Winter Hours)  
8:00 a.m. - 3:00 p.m.                                                                
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