Product Details
Description
Universal Parts GY6 Cylinder Head Gasket Kit – 57.4mm 150cc is a replacement scooter part available from ScootsUSA. This product is intended for repair, maintenance, or restoration work. Before ordering, compare the product name, SKU, dimensions, connector style, mounting points, and fitment notes with the part currently on your scooter.
Replacement Part Details
Use this part when the original component is worn, damaged, missing, or no longer working correctly. Many scooter parts can look similar but use different sizes, plugs, brackets, thread patterns, or mounting styles, so careful comparison before purchase is recommended.
Compatibility / Fitment
Use the fitment details below to confirm this part matches your scooter before ordering.
- Engine Size: 150cc, GY6
- Fitment Notes: Universal Fit
Fitment Guide: This compatibility information is based on manufacturer and supplier data. Listed models are common known applications and may not include every compatible scooter. If your scooter has multiple versions or production changes, confirm the correct match before ordering. Check photos, measurements, original part numbers, engine code, model, and related fitment information whenever possible.
Common Fitment Questions
Q: Is this for 150cc scooters?
A: This SKU is listed with 150cc engine-size fitment. Confirm exact model, year, and part style before ordering.
Additional information
| Weight | 0.3 lbs |
|---|---|
| Dimensions | 5 × 7 × 1 in |
GY6 150cc Top-End Gasket Set
Ensure a perfect seal and maximum compression with the Universal Parts GY6 Cylinder Head Gasket Kit. Specifically designed for the standard 57.4mm bore 150cc engine, this comprehensive 5-piece kit provides every gasket required for a top-end rebuild. Whether you are performing a routine valve adjustment or installing a fresh cylinder, these gaskets are engineered to withstand the high thermal stress and combustion pressures of the 157QMJ engine family.
Key Features
- Complete Rebuild Solution: Includes the head gasket, base gasket, exhaust gasket, intake manifold gasket, and timing chain tensioner gasket.
- Multi-Layer Head Gasket: Engineered for superior heat dissipation and high-pressure sealing to prevent "blown" head gaskets and compression loss.
- High-Temperature Exhaust Seal: Features a reinforced exhaust ring to eliminate annoying exhaust leaks and "popping" during deceleration.
- OEM-Spec Fitment: Precision-cut for the standard 76mm diagonal bolt spacing found on most 125cc and 150cc GY6 platforms.
Comprehensive Fitment Guide
This kit is a direct fit for GY6 125cc and 150cc (QMI/QMJ 152/157) 4-stroke engines found in:
| Engine / Brand | Compatible Models |
|---|---|
| GY6 150cc (157QMJ) | TaoTao, Wolf, Icebear, Peace Sports, Bintelli |
| Off-Road / Karts | Hammerhead, TrailMaster, and Kandi 150cc Buggies |
| Bore Compatibility | Designed specifically for **57.4mm** Cylinder Bores |
Technical Specifications
- Diagonal Bolt Spacing: 76mm
- Head Gasket Inner Diameter: 59mm
- Base Gasket Inner Diameter: 62.5mm
- Exhaust Gasket ID/OD: 23.5mm / 30mm
- Manifold ID: 25mm
Mechanic's Note: Gaskets are "one-time use" items—never attempt to reuse old gaskets during a rebuild.
Installation Tip: Ensure both the cylinder and head surfaces are perfectly clean and free of old gasket material before assembly.
Pro Tip: Always use a Torque Wrench to tighten your head studs in a "star pattern" to ensure even pressure and prevent the head from warping!
SKU: 137-02
Vendor: Scooterworks USA, LLC





