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Monster Scooter Parts  |  SKU: X98-6746-001

50cc 139QMB Scooter & Go-Kart Engine Crankcase Cover

$18.99
Style

Pre-Black Friday Sale - Save 15% with coupon code: PBF15
This item has a 30 day warranty. Warranty Policy

Free Shipping
  • US domestic ship to addresses only.
  • Does not include expedited shipping services.
Key Features
  • Two length styles
  • Long case or short case
  • Black finish

Description
Here is a 50cc 139QMB scooter & go-kart engine crankcase cover for those popular 4-stroke 139QMB engines that put the power to so many of today's 49/50cc motor scooters. These are probably the most common scooter and go-kart engines, and many millions have been made over the years. Two styles are available, the long case and the short case versions. Both sport a nice black finish.

The short case engine is designed for use with 10" diameter rear rims. This would correspond to a tire size of 2.75-10 through 3.50-10. A short case engine will not accommodate rear tires that are larger than 3.50-10.

The long case engine is designed to allow the use of 12" rear rims. This would correspond to a tire size of 110/70-12 through 140/70-12. Please use your rear tire size to determine which crankcase cover is right for your go-kart or street-legal motor scooter.

⚠ WARNING California Residents: Proposition 65 Warning

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