Engine / Transmission

QMB139 Engine Parts

Engine & Transmission parts for 49cc / 50cc 4-stroke QMB139 engines.
This engine is one of the most popular 50cc 4-stroke engines used in Chinese & Taiwanese scooters.

Items: 1–12 of 47, per page
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    50cc 4-stroke QMB139 scooter complete engine assembly. Short case .
     
    50cc 4-stroke QMB139 scooter complete engine assembly. Short case .
    • $329.99

    Score: 5.00. Votes: 1
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    50cc 4-stroke QMB139 scooter complete engine assembly. Long case .
     
    50cc 4-stroke QMB139 scooter complete engine assembly. Long case .
    • $339.99

    Score: 5.00. Votes: 1
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    50cc 4-stroke QMB139 Scooter 4-Stroke Gear Box Cover
     
    50cc 4-stroke QMB139 Scooter 4-Stroke Gear Box Cover
    • $39.99
    Only 4 left in stock

    Score: 5.00. Votes: 1
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    50cc 4-stroke QMB139 Scooter 4-Stroke Gear Box Gasket
     
    50cc 4-stroke QMB139 Scooter 4-Stroke Gear Box Gasket
    • $9.99
    Only 5 left in stock

    Score: 5.00. Votes: 1
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    49cc 50cc 4-stroke QMB139 Scooter Emissions Valve Cover
     
    49cc 50cc 4-stroke QMB139 Scooter Emissions Valve Cover
    • $29.99

    Score: 5.00. Votes: 1
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    49cc 50cc 4-stroke QMB 139 Scooter Valve Cover Gasket
     
    49cc 50cc 4-stroke QMB 139 Scooter Valve Cover Gasket
    • $4.99

    Score: 5.00. Votes: 1
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    49cc 50cc 4-stroke QMB139 Non-Emissions Valve Cover with Gasket
     
    49cc 50cc 4-stroke QMB139 Non-Emissions Valve Cover with Gasket
    • $32.99

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    50cc Scooter 4-stroke QMB139 Left Crankcase Cover Type 1
     
    50cc Scooter 4-stroke QMB139 Left Crankcase Cover Type 1
    • $39.99

    Not rated yet
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    50cc Scooter 4-stroke QMB139 Left Crankcase Cover Type 2
     
    50cc Scooter 4-stroke QMB139 Left Crankcase Cover Type 2
    • $39.99

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    50cc Scooter 4-stroke QMB139 Left Crankcase Cover Type 3
     
    50cc Scooter 4-stroke QMB139 Left Crankcase Cover Type 3
    • $49.99
    Only 2 left in stock

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    50cc Scooter 4-stroke QMB139 Chrome CVT Cover Shortcase
     
    50cc Scooter 4-stroke QMB139 Chrome CVT Cover Shortcase
    • $74.99

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    50cc Scooter 4-stroke QMB139 Chrome CVT Cover Longcase
     
    50cc Scooter 4-stroke QMB139 Chrome CVT Cover Longcase
    • $79.99

    Not rated yet
Items: 1–12 of 47, per page
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    Fuel Petcock Valve Chinese Pit Bikes 50cc 70cc 90cc 110cc
     
    Fuel Petcock Valve Chinese Pit Bikes 50cc 70cc 90cc 110cc
    • $20.00

    Score: 5.00. Votes: 1
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    Stock Foot Pegs for small 47cc 49cc 2-stroke pocket bikes
     
    Stock Foot Pegs for small 47cc 49cc 2-stroke pocket bikes
    • $9.99

    Score: 5.00. Votes: 1