Piston-Liner Kits

Pistons and Liners

Pistons and liners are central to engine performance, forming the combustion chamber where power is generated under extreme pressure and temperature. Over time, wear on these components is inevitable — especially in industrial engines running under heavy load or long operating hours.

At AMS Parts, we supply engine-specific piston-liner kits that help restore compression, reduce oil consumption, and extend engine life. Whether you’re carrying out a routine rebuild or a full engine overhaul, we can provide the right kit based on your engine model, serial number, or CPL code.

When Are Piston-Liner Kits Needed?

Replacement is typically required:

• As part of scheduled engine overhauls, based on running hours or OEM recommendations
• When experiencing loss of compression, blow-by, or increased oil usage
• Following signs of piston scoring, liner damage, or ring failure
• During proactive maintenance of standby or critical-use equipment

What Can Be Included in a Kit?

• Depending on your engine type, your piston-liner kit may include:
• Pistons (steel or aluminium, depending on application)
• Cylinder Liners (wet or dry)
• Piston Rings (compression and oil control)
• Gudgeon Pins (wrist pins)
• Retaining Clips (circlips)
• Liner O-rings and associated fittings

All parts are carefully selected to match your engine’s original specification — ensuring correct fit, material, and operating performance.

Types of Liners We Support

• Wet Liners (sealed with O-rings, exposed to coolant)
• Dry Liners (pressed into the block)
• Flanged or non-flanged, depending on engine design
• Honed to correct tolerances for optimal ring seating and oil retention

Applications

We supply piston-liner kits for engines used in:

• Diesel Generators (Prime, Standby, and CHP)
• Marine Propulsion and Auxiliary Engines
• Heavy Industrial Power Units

Genuine, OEM & Remanufactured Options

We supply only genuine and OEM-quality piston-liner kits, along with selected remanufactured options where appropriate. Every component is matched to your engine’s technical specifications for reliable, long-term operation.