GY6 150cc 57.4mm Cylinder Kit for Buggies and ATVs

57.4mm Cylinder Kit for GY6 150cc Buggies and ATVs

This 57.4mm cylinder kit suits 150cc GY6 4-stroke engines used in buggies and ATVs. It can be a useful upgrade for anyone aiming to boost engine output or swap out worn parts. You'll find it among the GY6 150cc scooter parts range, where it can make a noticeable difference to how your vehicle runs. The kit comes with the cylinder, piston, pin, retaining clips, piston rings, cylinder head gasket, and base gasket, so it covers most of what the engine needs in one package.

Cylinder Specifications

The cylinder has a 57.4mm bore and stands 89.3mm tall. Its design accounts for a larger stud spacing, measuring 79mm diagonally. The cylinder sleeve has an outer diameter of 62.5mm, sized for particular engine layouts so it seats properly and works as intended inside the engine.

Piston Details

The included piston uses a 15mm pin diameter and a 42mm pin length. Getting these dimensions right is key to keeping the piston aligned and moving correctly within the engine. When performance drops or wear becomes excessive, swapping in a new piston and cylinder can bring back efficiency and power.

Specifications

• Bore: 57.4mm
• Cylinder Stud Spacing (Diagonal): 79mm
• Overall Height: 89.3mm
• Cylinder Sleeve Outer Diameter: 62.5mm
• Piston Pin Diameter: 15mm
• Piston Pin Length: 42mm
• Fits: GY6 150cc 4-stroke engines in buggies and ATVs with 79mm diagonal cylinder stud spacing

Fitment

Fits:

• GY6 QMI/QMJ 152/157 (150cc, 4-stroke, 79mm diagonal stud spacing)
• Various unlisted makes and models of buggies and ATVs with a 150cc GY6 engine (79mm diagonal stud spacing)

How to choose: Check the diagonal distance between two cylinder studs on your engine. It needs to measure 79mm, and the bore needs to be 57.4mm.

Shop more: GY6 150cc Scooter Parts (157QMJ) · GY6 Scooter Parts · Scooter Big Bore & Cylinder Kits · Scooter Parts