International DT817 Parts | Engine Rebuild Kits Since 1947
FP Smith Parts & Equipment is a trusted source for International DT817 engine parts. We stock new OEM surplus, quality used, and reconditioned components for the DT817, commonly found in TD-20, TD-24, and other International Harvester equipment. Family-owned since 1947, we maintain real physical inventory in Fairfield, California, and support full engine rebuilds.
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International DT817 Engine Parts
The DT817 is a legendary 6-cylinder diesel engine used in heavy construction and mining equipment. We carry a wide range of new surplus and quality used parts to support both in-frame and complete engine rebuilds.
DT817 Parts We Stock
- Engine Rebuild Kits: Full in-frame and out-of-frame kits with pistons, liners, bearings, and gaskets.
- Pistons, Liners & Rings: Standard and oversize pistons, cylinder liners, and ring sets.
- Bearings & Bushings: Main bearings, rod bearings, cam bearings, and thrust washers.
- Gaskets & Seals: Complete gasket sets, head gaskets, oil seals, and O-rings.
- Turbochargers & Fuel System: Turbos, injectors, fuel pumps, and related components.
- Cylinder Heads & Valvetrain: Cylinder heads, valves, guides, springs, and rocker arms.
- Oil & Cooling System: Oil pumps, water pumps, radiators, and oil coolers.
Common Applications
- International Harvester: TD-20, TD-24, and other heavy crawler tractors.
- Other Equipment: Various IH dozers, loaders, and industrial engines using the DT817.
Why Choose FP Smith for DT817 Parts?
- Specialized Inventory: Strong stock of DT817 components, including hard-to-find surplus parts.
- Physical Stocking: Real parts on hand in Fairfield, CA — ready for same-day shipping.
- Rebuild Support: We can supply full kits and individual components for complete engine rebuilds.
- Cost Savings: Quality used and OEM surplus options at significantly lower prices than new.
- Legacy Expertise: Decades of experience with International Harvester engines and equipment.




