GY6 125/150cc Long Case Engine Assembly | Blue Line OEM
GY6 125/150cc Long Case Engine Assembly | Blue Line OEM
$126.68
10 in stock
*Note: Free shipping to U.S. mainland (excludes AK, HI, and territories)
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Product Details
Description
GY6 125/150cc Long Case Engine Assembly | Blue Line OEM
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: Long Case, OEM
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 | 13 lbs |
|---|---|
| Dimensions | 1 × 1 × 1 in |
| Condition | New |
|---|
Simplify your next engine build with the Blue Line GY6 Long Case Engine Assembly Kit. Designed for 125cc and 150cc GY6 scooters using a long-case belt configuration (12"–14" wheels), this OEM-equivalent engine case kit comes with the most difficult work already done — bearings and rubber isolation buffers are professionally pressed in at the factory, saving you time and specialized tool costs.
Important: This case uses a 54mm cylinder head stud spacing. Verify your engine's stud spacing before ordering. This case is not compatible with QMK-based engines (161QMK / 1P61QMK).
Model Compatibility
Compatible with 157QMJ / 152QMI-based engines (125cc / 150cc) with 54mm head stud spacing:
- Engine codes: 157QMJ, 1P57QMJ, YN1P57QMJ, JJ157QMJ, BN157QMJ
- Engine codes: 152QMI, 1P52FMI, 154FMI
- Fits long-case GY6 platforms with 12"–14" wheels
Key Features
- Ready to Build: Crankcase bearings and rubber engine isolation buffers pre-installed at the factory.
- 54mm Head Stud Spacing: Correct for 157QMJ / 152QMI engines — not compatible with QMK engines.
- Long Case Design: Fits 125/150cc scooters with long-case belt configuration (12"–14" wheels).
- Complete Kit: Includes left and right crankcase halves, 4 cylinder head studs, rubber engine mount buffers, and breather hose.
- OEM Equivalent: Blue Line direct-fit replacement when OEM parts are unavailable or cost-prohibitive.
Technical Specifications
- Engine Compatibility: 157QMJ / 152QMI (125cc / 150cc / 169cc)
- Head Stud Spacing: 54mm
- Case Type: Long case (fits 12"–14" wheels)
- Material: Die-cast aluminum alloy
- Includes: Left & right crankcase halves, 4 head studs, rubber buffers, breather hose, hardware
- Bearings: Factory pre-installed
- Dimensions: 20" L x 12" W x 5" H
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