101 Octane

101 Octane Engine Bolt Set - 139QMB GY6 50cc

SKU 155-3
$40.00
Shipping calculated at checkout.
Description

101 Octane complete engine hardware set for QMB139 (GY6) 50cc/49cc scooters — a comprehensive flat-lay assortment of hex-head bolts, socket-head bolts, long cylinder studs, short flange bolts, nuts, washers, oil drain plug (large hex), circlip, and assorted small screws. Everything needed for a full engine rebuild or refresh in one kit. 

Key Features:

  • Comprehensive bolt kit for QMB139 GY6 50cc engine rebuilds — covers CVT cover, cylinder studs, oil drain plug, and more
  • Includes hex-head bolts, socket-head bolts, long cylinder studs, flange bolts, nuts, washers, oil drain plug, circlip, and small screws
  • Handy all-in-one hardware set for engine disassembly and reassembly
  • SKU: 155-3 | MPN: BT13886 | Made in China by 101 Octane

Specifications:

  • Brand: 101 Octane
  • SKU: 155-3
  • Application: QMB139 / GY6 50cc / 49cc 4-stroke engines
  • Contents: Assorted engine bolts, studs, nuts, washers, oil drain plug, circlip, small screws
  • Weight: 2.25 lbs
  • Made in China

Compatibility:

Fits QMB139 / GY6 50cc 4-stroke scooter engines. Compatible with most Chinese-made 50cc scooters, go-karts, and ATVs running the QMB139 engine architecture.

Note on hardware color: Kits ship in either all-silver zinc-plated hardware or a combination of gold zinc and black hardware, depending on manufacturer availability. Color selection is not available — see both images for examples of each variant.

Product Diagrams
Features
  • Complete engine hardware kit for QMB139 GY6 50cc rebuild (SKU: 155-3)
  • Includes hex-head bolts, socket-head bolts, long cylinder studs, flange bolts, nuts, washers, oil drain plug, circlip, and small screws
  • Covers CVT cover bolts, cylinder studs, oil drain plug, and general engine fasteners
  • Ships in all-silver zinc or gold zinc/black combination — color not selectable; see images for both variants
  • Made in China by 101 Octane | MPN: BT13886
Specifications

Brand: 101 Octane | SKU: 155-3 | MPN: BT13886 | Application: QMB139 / GY6 50cc/49cc | Contents: Assorted bolts, studs, nuts, washers, drain plug, circlip, screws | Weight: 2.25 lbs | Origin: China

Model Fitments

QMB139 / GY6 50cc 49cc 4-stroke scooter engines | CVT cover bolts, cylinder studs, oil drain plug position | Compatible with most Chinese 50cc scooters, go-karts, and ATVs with QMB139 engine

  • 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.
Since 1989

Supplying parts and accessories for vintage and modern scooters since 1989 – Over Half a Million Served and Counting!

Comprehensive Resource

From wear-and-tear items like tires and oil filters to aftermarket parts from industry-leading brands.

Dealer Focused

With a committed team of dealer-focused sales reps and streamlined pricing and shipping processes, we are dedicated to supporting your business.

Innovative

Our team constantly strives to develop and source the best new products for your scooter.