Pistons and cylinder liners form the combustion chamber and transfer gas pressure to the connecting rod and crankshaft, running against each other under conditions no other pair of engine components experiences. This group covers pistons, rings, cylinder liners and related components. Perkins uses both wet and dry liner designs depending on the engine series, which affects how a rebuild is carried out: a wet liner can be replaced without machining the block, while a dry liner installation may require boring. Pistons and liners are supplied as matched sets, and on the smaller 400 and 1100 Series parent-bore designs the block may be bored oversize with matching oversize pistons instead of using liners at all.
AMS Parts supplies a wide range of pistons & liners components for Perkins engines used in power generation, marine, and industrial applications. Browse the full range below, or contact us for specific requirements.
Browse our range of Pistons & Liners parts below. Use the search bar above to find a specific part number, or request a quote.
A wet liner contacts coolant directly and is sealed to the block with O-rings, so it can be replaced without machining. A dry liner is pressed into the bore and its replacement may require machining.
No. Some smaller parent-bore engines have no liners and are rebored oversize instead, with matching oversize pistons fitted.
Yes. They are supplied as matched sets and running clearance depends on both. Rings and seals are renewed at the same time.
