BLUE LINE
Blue Line GY6 Short Case CVT Engine Cover Gasket
Description
Stop gear oil leaks and protect your drivetrain with the Blue Line GY6 Short-Case Transmission Cover Gasket. Precision die-cut from oil-resistant sealing material, this OEM-equivalent gasket spans the final drive gearbox cover interface on short-case GY6 125cc, 150cc, and 169cc 4-stroke engines. An 8-hole mounting pattern aligned to factory casing tolerances ensures a flush, airtight seal that holds up to thermal expansion, mechanical shear, and modern synthetic gear oils.
Key Features
- Oil-Resistant Material: Formulated to resist degradation from gear oils, high operating temperatures, and road grit.
- Precision Die-Cut: 8-hole pattern matches factory casing tolerances exactly — no binding or tearing during assembly.
- Even Compression: Compresses uniformly under standard torque specs to seal minor surface imperfections on cast aluminum engine halves.
- OEM-Equivalent Fit: Direct drop-in replacement when factory parts are unavailable or during a full rebuild.
Technical Specifications
- Overall Length: 410mm (16.15")
- Mounting Holes: 8
- Engine Type: 4-stroke GY6 air-cooled, short-case (10" rear wheel)
- Position: Left crankcase / final drive cover interface
- SKU: 1100-1136
Compatibility
Fits short-case GY6 engines only (10-inch rear wheel platforms). Will not fit long-case engines (12–13-inch wheel setups). Always measure your transmission cover length before ordering.
| Engine Code | Alternate Codes | Application |
|---|---|---|
| 157QMJ / 1P57QMJ | BN157QMJ, JJ157QMJ | Standard 150cc horizontal 4-stroke scooter |
| 152QMI / 1P52QMI | 1P52FMI, 154FMI | 125cc short-case layout |
| 161QMK / 1P61QMK | BN161QMK-A | 169cc / 170cc Chinese clone variants |
Installation Tips
- Clean both mating aluminum surfaces completely — remove all old gasket material, silicone sealant, and oily film. Use a plastic scraper to avoid gouging the soft aluminum.
- Tighten gearbox casing bolts in a crisscross star pattern to factory inch-pound specs for uniform gasket compression.
About Blue Line
Blue Line supplies OEM-equivalent replacement parts for Chinese-manufactured scooters and ATVs, offering reliable fitment at an accessible price point. Their gaskets are a trusted choice for independent shops and DIY mechanics working on GY6-platform vehicles.
Product Diagrams
Model Fitments
Brands: Amstar, Amigo, Ascend, Baotian, Bashan, Blade, Boom, Chicago Scooter Company, Dongfang, Roketa, Baotian, Bashan, BMS, Cool Sports, E Ton, Fly Wing, Eagle, Fly, Italica, Riya, Ice Bear, Jackel, Jet Moto, JCL, Taotao, Peace, JM Star, Jonway, Kazuma, Keeway, KMD, Kymco, Lance, Lifan, Linhai, Loncin, Longbo, Fuxin, Jiajue, Tao Tao, Tao Motors, Trailmaster, Maxtrade, Meitien, Motofino, Motorino, NST, Panterra, Panther, Qlink, Yiben, Red Streak, Redcat, Roketa, Schwinn, Strada, SYM, Tank, Terminator ,Tomberlin, TNG, United Motors, Vento, Vitacci, Wildfire, Wolf, X-Treme, X-Pro, Yongfu, ZNEN, Zhongneng , Zhilong, Geely, Wangye, ZH and more Manufactured by: Taizhou Zhongneng Motorcycle Co.; Jiangsu Zhongneng Motorcycle Co.; Jiangsu Meijunte Technology Co.; Taizhou Qianxin Vehicle Co.; Ningbo Dongfang Lingyun Vehicle Made Co.; Taizhou Zhilong Technology Co.; Zhejiang Jiajue Motorcycle Manufacturing Co.; Zhejiang Gelly Ming Industrial Co.; Taizhou City Senglong Motorcycle Manufacture Co.; Jiangsu Sacin Motorcycle Co.; Jiangsu Linhai Power Machinery Group Co.; Zheijiang TaoTao Vehicles Co.; Zhejiang Senling Motorcycle Co.; Sanmen County Yongfu Machine Co; Taizhou Jiaojiang Zhiwei Motorcycle Manufacture Co.; Huzhou Daixi Zhenhua Technology Trade Co.; Taizhou Zhongneng Motorcycle Co.; Zhejiang Riya Motorcycle Co.; Ningbo Longjia Motorcycle Co.; Taizhou Zhongneng Motorcycle Co.; and more
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Same day shipping for orders placed before 2PM (CST) M-F
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30-day return period on eligible items
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Flat-rate shipping for orders shipped to the 48 Contiguous United States.
