Heavy-Duty Engine Rebuilds & Major Repair
Complete, high-quality overhauls and complex diagnostics performed by experienced technicians in our Sumner facility.
The work, done right
When an engine fails, downtime is money. Our Sumner shop handles complete heavy-duty engine rebuilds and major repairs from the ground up — precision machine work, OEM-grade components, and complex diagnostics handled by experienced diesel technicians who treat every rig like it carries our name.
What's included
- Full engine teardown, inspection & rebuild
- Complex driveability & electrical diagnostics
- OEM-grade parts and precision machine work
- Transmission, clutch & driveline repair
- Preventive maintenance to extend engine life
Signs it's time to call
- Excessive blue, black, or white exhaust smoke
- Knocking, ticking, or unusual engine noise
- Noticeable loss of power or worsening fuel economy
- Burning oil or coolant and oil mixing
- Low compression or hard starting
Spotting any of these? Don't wait for a roadside failure — call (206) 304-6870 and we'll take a look.
Engine Rebuilds & Major Repair — FAQs
Common questions about this service. Need something specific? Reach out and we'll walk you through it.
How do I know if my truck needs a full rebuild or just a repair?
It comes down to the diagnosis. Issues like low compression across multiple cylinders, metal in the oil, or coolant in the crankcase often point to a rebuild, while many problems can be fixed with a targeted repair. We diagnose first and tell you straight which one makes sense for your truck and your budget.
How long does a heavy-duty engine rebuild take?
It depends on the engine, the scope of work, and parts availability. After we complete the diagnosis and teardown, we give you a clear timeline up front so you can plan around it — no open-ended surprises.
Do you use OEM-grade parts for rebuilds?
Yes. We use OEM-grade components and precision machine work so the rebuild holds up to the demands of heavy-duty commercial use.
Can a rebuild really extend my engine's life?
A properly performed rebuild can return an engine to dependable service and add years of life — often at a fraction of the cost of a new truck. Pairing it with preventive maintenance protects that investment.
Ready to reduce downtime?
Get a straight answer and a fair quote from technicians who treat your rig like it carries our name.