Core Engine Parts

The main diesel engine parts are: pistons and piston rings (compress air and transfer combustion force), cylinder liners (the wear surface for piston travel), cylinder blocks and heads (the structural castings), crankshaft and camshaft (convert linear to rotary motion and time the valves), and main/rod bearings (support the rotating assembly).

Supporting Systems

The fuel system includes injectors, fuel pumps and filters; the cooling system includes water pumps, thermostats and radiators; the lubrication system includes oil pumps and oil coolers; and the air system includes turbochargers, intercoolers and exhaust manifolds.

Wear Parts to Stock

Fleets should stock gasket kits, filters, belts and glow plugs. Rebuild projects need overhaul kits, liners and bearings.

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Yes - including accessories like starter motors and thermostats.

Where to buy the parts in this guide

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