Detroit Engine Parts | Detroit Diesel Engine Components | FP Smith Parts & Equipment
Leading the Parts Industry since 1947. FP Smith Parts & Equipment stocks quality Detroit engine parts, including new OEM surplus, used, and reconditioned engine components, fuel system parts, and repair components for older obsolete Detroit Diesel engines. We maintain millions of parts physically stocked — not brokered — at our facility in Fairfield, California.
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Detroit Engine Parts Specialist
Detroit Diesel (Detroit) is a major manufacturer of heavy-duty diesel engines used in trucks, buses, and industrial applications. FP Smith carries a wide range of new OEM surplus, quality used, and reconditioned Detroit engine components for older, obsolete engines. With 79+ years of expertise and a large physically stocked inventory, we support both fleet maintenance and engine rebuild projects.
Why Choose FP Smith for Detroit Engine Parts?
- Physical Stocking: Millions of parts physically stocked in our own warehouses and yard — not brokered or dropshipped.
- Expert Knowledge: Decades of experience with Detroit Diesel, Cummins, and heavy-duty diesel engines.
- Rebuild Services: In-house engine, fuel system, and component rebuilding available.
- Fast Shipping: Same-day shipping on orders placed before 3 PM PST + worldwide export.
Detroit Engine Components
- Obsolete Engine Blocks & Heads — New & reconditioned
- Pistons, Rings & Liners — Older hard-to-find parts
- Engine Bearings & Gaskets — Main bearings, rod bearings, and gaskets
Browse Full Detroit Engine Parts Inventory →
Additional Support
- Technical support and interchange assistance available
- Core exchange and rebuild services offered
- Worldwide shipping with expedited options
- 99.7% positive customer feedback

