WH 150cc Cylinder Gasket

WH 150cc Cylinder Gasket

🔧 Cylinder Gasket · Head Gasket · Engine Seal · Engine Rebuild Part

For WH 150cc 4-Stroke GY6 Engines · Widely Used on 125cc-150cc Scooters & ATVs

This is the WH 150cc Cylinder Gasket (also known as the head gasket), a critical sealing component between the cylinder and cylinder head. It is specifically designed for WH 150cc 4-stroke GY6 engines and is widely used on a variety of scooters and ATVs (All-Terrain Vehicles) equipped with Chinese-built 125cc and 150cc 4-stroke GY6 engines.

The cylinder gasket is installed between the cylinder block and cylinder head, withstanding the high temperature and pressure generated in the combustion chamber while sealing oil passages and coolant passages (on liquid-cooled models). It prevents combustion gas leakage, oil entering the combustion chamber, and coolant seepage. Manufactured from high-quality materials with excellent heat resistance, pressure resistance, and sealing properties, this gasket is an essential component for engine overhaul or cylinder head replacement. When engine issues such as compression loss, oil burning, or coolant entering the cylinder occur, replacing the cylinder gasket is a critical step in resolving the problem.

This cylinder gasket is compatible with the following engines and vehicles:

• Engine Type: 4-stroke GY6 series engines
• Displacement Range: 125cc, 150cc
• Compatible Engines: 139FMB, 147FMD, 147FMF, 150FMG, 152QMI, 153QMI, GY6, and similar models
• Compatible Vehicles: Mopeds, scooters, Cub series, ATVs (All-Terrain Vehicles)
• Brand Compatibility: Widely used on various Chinese-made and imported vehicles equipped with GY6 engines

• High-Quality Sealing Material: Manufactured from premium composite or multi-layer steel material with excellent heat resistance, pressure resistance, and aging resistance.
• Precision Stamping Process: Precision-stamped for accurate dimensions and perfect mating with cylinder block and head surfaces.
• Multi-Layer Construction: Some models feature multi-layer steel construction for superior sealing performance.
• OEM Specification Standards: Manufactured to GY6 original specifications for perfect replacement of the original gasket.
• Single-Use Design: Cylinder gaskets are one-time use sealing components and must be replaced with a new gasket after removal.
• Essential for Engine Overhaul: Required when replacing cylinders, piston rings, cylinder heads, or performing engine overhaul.

🔧 Installation Guide

1. Ensure the engine is completely cooled and disconnect the negative battery terminal before starting.
2. When removing the cylinder head, clean both the cylinder block and cylinder head mating surfaces thoroughly, removing all old gasket residue. Surfaces must be clean, flat, and free of oil or scratches.
3. When installing the new cylinder gasket, pay attention to orientation (markings facing up if present) and ensure gasket holes align with oil and coolant passages.
4. Cylinder gaskets are single-use components and must NOT be reused after removal.
5. When installing the cylinder head, use a new gasket and tighten cylinder head bolts in a diagonal pattern in multiple stages.
6. Refer to the factory service manual for torque specifications (typically 20-25 N·m), applying torque in 2-3 stages.
7. After installation, start the engine and check for gas, oil, or coolant leaks; recheck bolt torque if necessary.
8. Professional installation is strongly recommended.

⚠️ Important Notice: This product is the WH 150cc Cylinder Gasket, suitable for 125cc-150cc 4-stroke GY6 engines, including 139FMB, 147FMD, 147FMF, 150FMG, 152QMI, 153QMI, and similar models. Widely compatible with scooters, mopeds, Cub series, ATVs, and other vehicles.
Spec Confirmation: Before purchasing, verify your engine displacement and bore size to ensure compatibility with this product.
Installation Caution: Cylinder gaskets are single-use components and must be replaced after removal. Clean mating surfaces thoroughly and tighten bolts in a diagonal pattern to the specified torque. Improper installation can cause gas leakage, oil leakage, or engine damage. Professional installation is strongly recommended. Product images are for reference only; please refer to the actual product.