Universal Parts 139QMB short-case CVT cover exterior showing black plastic housing with pre-installed kick start lever arm, pivot, ratchet mechanism, breather tube port, and 10 mounting hole bosses Universal Parts 139QMB short-case CVT cover exterior showing black plastic housing with pre-installed kick start lever arm, pivot, ratchet mechanism, breather tube port, and 10 mounting hole bosses
Universal Parts 139QMB CVT cover interior face showing die-cast aluminum inner structure with variator cavity, kick start gear and ratchet assembly, and 10-hole mounting flange Universal Parts 139QMB CVT cover interior face showing die-cast aluminum inner structure with variator cavity, kick start gear and ratchet assembly, and 10-hole mounting flange
Universal Parts 139QMB short-case CVT cover exterior showing black plastic housing with pre-installed kick start lever arm, pivot, ratchet mechanism, breather tube port, and 10 mounting hole bosses
Universal Parts 139QMB CVT cover interior face showing die-cast aluminum inner structure with variator cavity, kick start gear and ratchet assembly, and 10-hole mounting flange

Universal Parts

Universal Parts 139QMB CVT Cover w/ Kick Start - Short Case

SKU 151-293
$62.00
Shipping calculated at checkout.
Description

Replace a cracked or damaged CVT cover on your short-case GY6 50cc scooter with this Universal Parts QMB139 CVT Cover with Kick Start. Designed for short-case 139QMB / QMB139 4-stroke 50cc engines, this cover comes with the kick-start mechanism pre-installed and includes the kick-start lever — ready to bolt on.

Model Compatibility

  • GY6 50cc / 49cc 4-stroke short-case engines: 139QMB / QMB139
  • TaoTao, Wolf, Ice Bear, Bintelli, and other Chinese GY6 50cc short-case scooters

Key Features

  • Pre-Installed Kick Start Mechanism: Kick start ratchet, pivot arm, and gear assembly pre-installed — no separate assembly required.
  • Kick Start Lever Included: Serrated kick start lever included in the kit.
  • Short Case Design: Correct length for 139QMB short-case engines (10-hole mounting pattern).
  • Breather Port: Integrated breather tube port on the outer cover.
  • Gasket Not Included: Order a 139QMB CVT cover gasket separately before installation.

Technical Specifications

  • Engine Fitment: 139QMB / QMB139 50cc 4-stroke short case
  • Overall Length: 15.75 inches
  • Total Mounting Holes: 10 (8 bolt holes + 2 dowel holes)
  • Includes: CVT cover with pre-installed kick start mechanism + kick start lever

California Prop 65 Warning: www.p65warnings.ca.gov
Product Diagrams
Features
  • Pre-installed kick start ratchet, pivot arm, and gear assembly
  • Kick start lever included — no additional parts needed
  • Short-case design with 10-hole mounting pattern (8 bolt + 2 dowel)
  • Integrated breather tube port on outer cover
  • Gasket not included — order 139QMB CVT cover gasket separately
Specifications

Engine: 139QMB / QMB139 50cc 4T short case | Length: 15.75" | Mounting Holes: 10 (8 bolt + 2 dowel) | Includes: Cover + kick start mechanism + lever | Gasket: Not included
Model Fitments

GY6 50cc / 49cc 4-stroke short-case engines: 139QMB / QMB139; TaoTao, Wolf, Ice Bear, Bintelli, and other Chinese GY6 50cc short-case scooters
  • Same day shipping for orders placed before 2PM (CST) M-F
  • 30-day return period on eligible items
  • Flat-rate shipping for orders shipped to the 48 Contiguous United States.
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