Blue Line Right Crankcase Cover Kit – 50cc 139QMB Series A
Blue Line Right Crankcase Cover Kit – 50cc 139QMB Series A
$53.16
Out of stock
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Product Details
Description
Blue Line Right Crankcase Cover Kit – 50cc 139QMB Series A
Compatibility
Fits many 139QMB-based 50cc / 80cc scooter engines. Confirm measurements, connector style, and engine family before ordering.
Compatibility / Fitment
Use the fitment details below to confirm this part matches your scooter before ordering.
- Engine Size: 50cc, 80cc
- Engine Code: 139QMB
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: Will this fit a 139QMB engine?
A: This SKU is listed as compatible with 139QMB engine-code fitment. Always compare your original part and scooter details before ordering.
Q: Is this for 50cc scooters?
A: This SKU is listed with 50cc engine-size fitment. Confirm exact model, year, and part style before ordering.
Additional information
| Weight | 2.062 lbs |
|---|---|
| Dimensions | 17 × 7 × 3 in |
Product Overview
Restore your scooter's engine integrity with the Blue Line GY6 50cc 139QMB Right Crankcase Cover Kit. Designed specifically for Series A 50cc 139QMB 4-stroke engines, this complete OEM-style assembly offers a reliable, direct-fit solution for cracked or damaged covers. Blue Line components are engineered to provide factory quality at a fraction of the cost.
This comprehensive kit includes everything needed for a successful installation, ensuring a leak-free seal and proper oil circulation for your engine's right side.
Key Features
- Complete Replacement Kit: Includes the crankcase cover, gasket, dipstick, oil screen, and all necessary mounting hardware.
- OEM Quality: Blue Line parts are precision-engineered to match OEM factory specifications for fitment and durability.
- Ready to Install: Comes with pre-installed dowels and seals to simplify the repair process.
- Series A Specific: Optimized for 54mm stud spacing configurations.
Technical Specifications
| Attribute | Specification |
|---|---|
| Brand | Blue Line |
| SKU | 1100-1305 |
| Engine Fitment | 50cc 139QMB 4T (Series A) |
| Stud Spacing | 54mm |
| Dimensions | 17" L x 7" W x 3" H |
Fits 50cc / 80cc engines with the following engine codes: 139QMA, 139QMB, 1P39QMB, 1P39QMA-2, YN139QMB, JJ1P39QMB, 139FMA-2, BD1P39QMB, BN139QMB, and 147QMD.
Fitment Tip: To confirm you have a Series A engine, remove your valve cover and measure the stud spacing. Series A = 54mm. If your spacing is 57mm, you require a Series B cover.
