The engine is the heart of the excavator. It supplies the necessary power to drive the hydraulic system and other components.

As a leading excavator engine parts supplier, Tunway supplies high-quality diesel engine parts for the excavator engine rebuilding and maintaining, covering brands of Caterpillar, Komatsu, Cummins, Volvo, Isuzu, Perkins, Mitsubishi, Deutz, Kubota, Yanmar, Doosan, WeiChai, Yuchai, and others.

Our high-quality diesel engine parts not only apply to various of excavators, but also apply to construction machinery such as bulldozers, wheel loaders, backhoes, forklifts, trucks, marine, and so on.

Excavator Engine Overhaul Parts

Cylinder Block Cylinder Head Crankshaft Camshaft
Rock Arm Liner Piston Piston Ring
Pin & Snap Ring Main Bearing Connecting Rod Bearing Thrust Plate
Sleeve Fuel Injector Fuel Injection Pump Connecting Rod
Overhaul Kit Full Gasket Kit Cylinder Head Gasket Oil Pan
Flywheel Muffler Valve Inlet Valve Exhaust
Valve Guide Valve Seat Valve Spring Thermostat
Oil Pump Water Pump Oil Cooler Radiator
After Cooler Inter Cooler Complete Engine Long Block
Middle Block Short Block Nozzle Manifold
8-97144-821-1 4BD1 Engine Cylinder Head for Isuzu Diesel Engine
8-98208-655-0 4LE2 4HK1 4JJ1 4BG1 Cylinder Block for Isuzu Diesel Engine
4JB1 Cylinder Block 8-94437397-6 Suitable for Isuzu Mechanical Diesel Engine
Yanmar Engine 4TNE94 4TNV98 and 4TNV92 4TNE92 Overhaul Parts
Mitsubishi 4M40 4M50 Engine Overhaul Parts for CAT 305 306 307
Isuzu 4LE2 Engine Rebuild Parts for Hitachi ZX40 ZX55 and Sany SY75
Komatsu 3D84 3D94 4D84 4D88 Engine Overhaul Parts for PC30 PC40 PC50
Yanmar Genuine New Engine Assy 3TNM68 3TNM72 3TNV74 3TNV76 3TNV80 3TNV88
Tunway Cummins QSB5.9 Engine Assy for Excavator Construction Machinery
Cummins Engine Genuine B3.9CS4 for Excavator and Construction Machinery
Cummins Engine Genuine 4BT3.9 for Excavator and Construction Machinery
320-0690 3200690 Fuel Injector GP for CAT C6.6 Diesel Engine
6BT5.9 6BTA5.9 6D102 Cummins Original Complete Engine Assembly for R210 R220 JS220 PC200
294000-2360 5344768 Common Rail Fuel Injection Pump for Cummins ISBE3.9 ISBE5.9L Engine
382-2668 3822668 384-0678 3840678 Fuel Injection Pump for Caterpillar C9 Diesel Engine
8-97602485-6 8976024856 fuel injectors for 4HK1 JCB JS200 JS220 Hitachi ZX200
Fuel Injection Pump 326-4634 3264634 32E61-10302 10R-7661 for CAT321D 313D C4.2 Engine
Fuel Injector 20R-4560 371-3974 for Caterpillar Diesel Engine C7.1 E320 E320GC