Essential Heavy Equipment Part Explanations (Glossary)

• Hydraulic Cylinder Seal Kit: (Engineering Machinery) Installed in the hydraulic cylinder head and piston to prevent fluid leakage. Example: Caterpillar 349D Hydraulic Boom Cylinder Seal Kit.

• Water Pump: (Heavy Truck) Located on the engine block, circulates coolant throughout the engine cooling system. Example: Volvo VNL 780 D13 Water Pump.

• Tie Rod End: (Auto Parts) Part of the steering linkage, connecting the steering rack to the wheel hub. Example: Toyota Camry XV70 Tie Rod End.

• Fuel Injector Nozzle: (Agricultural Machinery) Positioned in the cylinder head, atomizes and sprays fuel into the combustion chamber. Example: John Deere 8320R Fuel Injector Nozzle.

• Track Roller: (Engineering Machinery) Located on the undercarriage, supports the weight of the machine and guides the track chain. Example: Komatsu D65EX-18 Track Roller.

• Brake Shoe: (Heavy Truck) Part of the drum brake system, presses against the inside of the brake drum to create friction. Example: Kenworth T880 Rear Axle Brake Shoe.

• CV Joint Boot: (Auto Parts) A rubber bellows covering the Constant Velocity (CV) joint on the drive axle, protecting it from dirt and moisture. Example: Honda CR-V RW CV Joint Boot.

• Transmission Clutch Disc: (Heavy Truck) Located inside the bell housing, engages and disengages power transfer between the engine and transmission. Example: Peterbilt 579 Eaton Fuller Clutch Disc.

• Air Filter Element: (Engineering Machinery) Installed in the air intake system, filters dust and debris from the air before it enters the engine. Example: Liebherr R 944 C Air Filter Element.

• Hydraulic Control Valve: (Agricultural Machinery) Located in the hydraulic system, directs fluid flow to various actuators like cylinders or motors. Example: Case IH Magnum 380 Hydraulic Control Valve.