GY6 150cc Cylinder Gasket Set 57.4 mm

57.4mm Cylinder Gasket Set for GY6 150cc Engines

This full gasket kit is made for 150cc GY6 4-stroke engines. The set covers the head gasket, base gasket, exhaust gasket, intake gasket, valve cover gasket, secondary air gasket, and timing chain gasket. It is among the GY6 150cc scooter parts people commonly pick up when servicing or rebuilding an engine.

What's in the Kit

Every major sealing point in the engine is addressed by the gaskets in this package. The head gasket's inner diameter is 59mm, and the base gasket's inner diameter is 62.5mm. Each piece is cut to seal its joint properly, which matters for both how the engine runs and how long it lasts.

Knowing When to Swap the Gaskets

Replace gaskets during a full engine rebuild, when you spot a leak, or as part of regular upkeep. Worn or damaged gaskets can cause the engine to run poorly or fail. With this complete set, you can refresh every sealing surface in one go.

Specifications

• Diagonal Bolt Hole Spacing: 76mm
• Base Gasket Inner Diameter: 62.5mm
• Head Gasket Inner Diameter: 59mm
• Timing Tensioner Gasket Inner Diameter: 22mm
• Exhaust Inner Diameter: 23.5mm
• Exhaust Outer Diameter: 30mm
• Manifold Inner Diameter: 25mm
• Fits: GY6 150cc (157QMJ)

Compatibility

Fits:

• GY6 150cc (157QMJ)

Where it goes: part #2 on the cylinder diagram for the GY6 150cc (157QMJ).

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