Blue Line Right Crankcase Cover Kit - 50cc 139QMB Series A
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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 |
Compatibility & Fitment
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.
Shipping information
Orders are prepared as quickly as possible. Delivery times and shipping costs are calculated at checkout based on the destination and items ordered.
Returns & warranty
Please verify fitment and part number before ordering. Contact Thrifty Scooters promptly if an item arrives damaged or incorrect.