FP Smith Parts Hero Image

Caterpillar Engine Parts | Diesel Engines & Components | FP Smith Parts & Equipment

Leading the Parts Industry since 1947. FP Smith Parts & Equipment stocks quality Caterpillar engine parts, including new OEM surplus, used, and reconditioned pistons, rings, bearings, gaskets, fuel system components, and rebuild kits for Caterpillar diesel engines. We maintain millions of parts physically stocked — not brokered — at our facility in Fairfield, California.

Learn more: Home • Full Parts Catalog

Caterpillar Engine Parts Specialist

Caterpillar has produced some of the most durable and widely used diesel engines in the world for over 80 years. FP Smith carries an extensive inventory of Caterpillar engine parts spanning from classic engines of the 1940s–1970s to modern engines of the 1980s–2010s.

Popular Caterpillar Engine Models (Current Inventory)

Small / Compact Engines: 3013, 3014, 3024, 3034, 3044, 3046, 3054, 3056, 3064, 3066, C2.2, C2.2 CRDI, C3.3, C3.3B, C3.8
Mid-Size Engines: C4.2, C4.4, C4.4B, C6.4, C6.6, C7.1

Classic Caterpillar Engines – Crawler Tractors (1940s–2010)

D311, D315, D318, D326, D330, D333, D342, D343, D353, D379, D398, D399
3204, 3208, 3304, 3306, 3406, 3408, 3412

Classic Caterpillar Engines – Wheel Loaders (1940s–2010)

3304, 3306, 3406, 3408, 3412
3126, 3176, 3196, C7, C9, C10, C12, C13, C15, C16, C18

Classic Caterpillar Engines – Trucks & Haul Trucks (1940s–2010)

3306, 3406, 3408, 3412, 3508, 3512, 3516
C15, C16, C18, C27, C32

Why Choose FP Smith for Caterpillar Engine Parts?

Physical Stocking: Large inventory of Caterpillar engine components ready to ship.
Expert Knowledge: Decades of experience with Caterpillar diesel engines from the 1940s through 2010.
Rebuild Services: In-house engine rebuilding and component support available.
Fast Shipping: Same-day shipping on orders placed before 3 PM PST + worldwide export.