A piston is a component of reciprocating engines, reciprocating pumps, gas compressors and pneumatic cylinders, among other similar mechanisms. It is the moving component that is contained by a cylinder and is made gas-tight by piston rings. In an engine, its purpose is to transfer force from expanding gas in the cylinder to the crankshaft via a piston rod and/or connecting rod. View Details

Cylinder Liner

A cylinder liner is a cylindrical part to be fitted into an engine block to form a cylinder. It is one of the most important functional parts to make up the interior of an engine. This is called Cylinder liner in Japan, but some countries(or companies) call this Cylinder sleeve. View Details

Piston Ring

Piston rings seal the cylinder so that combustion gas generated at the time of ignition does not leak into the opening between the piston and the cylinder. If combustion gas leaks, the engine cannot output sufficient power, increasing fuel consumption which is not good both in terms of economy and the environment. View Details

Crankshaft Bearings

crankshaft bearings support the crankshaft and help it rotate under inertia forces generated by the parts of the shaft and oscillating forces transmitted by the connecting rods. Main bearings are mounted in the crankcase View Details

Connecting Rod Bearing

Connecting rod bearings provide rotating motion of the crank pin within the connecting rod, which transmits cycling loads applied to the piston. Connecting rod bearings are mounted in the Big end of the connecting rod   View Details

Crankshaft Assembly

The crankshaft, sometimes abbreviated to crank, is the part of an engine that translates reciprocating linear piston motion into rotation. To convert the reciprocating motion into rotation, the crankshaft has “crank throws” or “crankpins”, additional bearing surfaces whose axis is offset from that of the crank, to which the “big ends” of the connecting rods from each cylinder attach. View Details

Camshaft Assembly

A camshaft is a shaft to which a cam is fastened or of which a cam forms an integral part. In internal combustion engines with pistons, the camshaft is used to operate poppet valves. It then consists of a cylindrical rod running the length of the cylinder bank with a number of oblong lobes protruding from it, one for each valve. The cam lobes force the valves open by pressing on the valve, or on some intermediate mechanism as they rotate. View Details

Cylinder Head Assembly

In an internal combustion engine, the cylinder head (often informally abbreviated to just head) sits above the cylinders on top of the cylinder block. It closes in the top of the cylinder, forming the combustion chamber. This joint is sealed by a head gasket. In most engines, the head also provides space for the passages that feed air and fuel to the cylinder, and that allow the exhaust to escape. The head can also be a place to mount the valves,... View Details

Connecting Rod Assembly

In a reciprocating piston engine, the connecting rod or ‘conrod’ connects the piston to the crank or crankshaft. Together with the crank, they form a simple mechanism that converts reciprocating motion into rotating motion. View Details

Engine Valves

An Engine valve (also called Poppet valve) is a valve typically used to control the timing and quantity of gas or vapour flow into an engine. It consists of a hole, usually round or oval, and a tapered plug, usually a disk shape on the end of a shaft also called a valve stem. The shaft guides the plug portion by sliding through a valve guide. View Details

Valve Guides

In most types of reciprocating engines, a valve guide is provided for each poppet valve in the cylinder head. Along with the valve spring, it serves to positively locate the valve so that it may make proper contact with the valve seat. A valve guide is a cylindrical piece of metal, pressed or integrally cast into the cylinder head, with the valve reciprocating inside it. Guides also serve to conduct heat from the combustion process out from the... View Details

Valve Lifter

A hydraulic valve lifter, also known as a hydraulic tappet or a hydraulic lash adjuster, is a device for maintaining zero valve clearance in an internal combustion engine. The conventional means of adjusting valve actuation always requires a small clearance to be left between the valve and its rocker or cam follower to allow for thermal expansion and wear. The hydraulic lifter was designed to ensure that the valve train always cooperates with zer... View Details

Oil Pump

The oil pump in an internal combustion engine circulates engine oil under pressure to the rotating bearings, the sliding pistons and the camshaft of the engine. This lubricates the bearings, allows the use of higher-capacity fluid bearings and also assists in cooling the engine. As well as its primary purpose for lubrication, pressurized oil is increasingly used as a hydraulic fluid to power small actuators View Details

Timing Cover Assembly

A timing cover is a component typically found in internal combustion engines and is designed to protect components such as the timing gears and chain or belt. In applications that use a timing chain, the timing cover usually seals the front end of the block, while engines with timing belts typically have timing covers that are less integral. Timing covers can be made from either metal or plastic. Engines with timing chains usually have a metal co... View Details

Timing Chain / Timing Belt

A timing belt or timing chain (cam belt) is a part of an internal combustion engine that synchronizes the rotation of the crankshaft and the camshaft(s) so that the engine’s valves open and close at the proper times during each cylinder’s intake and exhaust strokes. In an interference engine the timing belt or chain is also critical to preventing the piston from striking the valves View Details


A tensioner is a device that applies a force to an object to maintain it in tension. Often the amount of force is adjustable. There are tensioners for applying a tensioning force to drive belts and chains, fibers, and bolts. A car engine is an intricately built mechanism. To aid the moving parts within the compartment, a tensioner on a belt provides assurance that a main driving pulley does not become loose. View Details

Timing Chain Guide

The chain operates the inlet and exhaust valve gear at the correct moment during the pistons stroke cycle. View Details

Timing Gear

The timing gear is connected by chain, gears, or a belt to the crankshaft at one end and the camshaft on the other. It is marked with tiny increments all around its perimeter, which correspond to degrees of timing from the straight-up timing position of the camshaft and crankshaft. These marks assist the individual who is tuning up the engine to set the timing to the determined optimal timing degrees of the camshaft and engine designers. View Details

Gasket Overhaul Kit

Just like the name implies, if you’re going to overhaul your engine this is the gasket/seal kit you would start with. Kit contains all the major gaskets and seals required to do a complete engine overhaul View Details

Water Pump

The water pump is a simple centrifugal pump driven by a belt connected to the crankshaft of the engine. The pump circulates fluid whenever the engine is running. The water pump uses centrifugal force to send fluid to the outside while it spins, causing fluid to be drawn from the center continuously. The inlet to the pump is located near the center so that fluid returning from the radiator hits the pump vanes. The pump vanes fling the fluid to th... View Details

Carburetor Assembly / Repair Kit

The carburetor works on Bernoulli’s principle: the faster air moves, the lower its static pressure, and the higher its dynamic pressure. The throttle (accelerator) linkage does not directly control the flow of liquid fuel. Instead, it actuates carburetor mechanisms which meter the flow of air being pulled into the engine. The speed of this flow, and therefore its pressure, determines the amount of fuel drawn into the airstream. View Details

Clutch Master Cylinder Assembly / Repair Kit

In automotive engineering, the master cylinder is a control device that converts non-hydraulic pressure (commonly from a driver’s foot) into hydraulic pressure. In the clutch system, the device which the master cylinder operates is called the slave cylinder; it moves the throw out bearing until the high-friction material on the transmission’s clutch disengages from the engine’s metal (or ceramic/carbon) flywheel. View Details

Clutch Release Bearing

A Clutch Release Bering (a type of thrust bearing) is a particular type of rotary bearing. Like other bearings they permit rotation between parts, but they are designed to support a predominately axial load. View Details

Oil Pump Gear

The ‘gear’ of the oil pump unit. View Details