Item No: PFS-151-258
50mm Big Bore Cylinder Kit for 50cc 4-stroke QMB139 engines. Upgrades to 81.3cc based on a stock stroke of 41.4mm! Includes cylinder, piston, pin, circlips, rings, head gasket and base gasket.
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Item No: W609-1804
Fits GY6 50cc engines and 50cc moped/scooter engines. Teeth: 10; Length (end to end) 4.5; Length (main case: 3; Diameter: 1.85; Bolt hole spacing: 2.75, 2 bolt; Terminal connection: single post tab; Voltage system: 12V. Bronze/gold in color.
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Item No: W609-1805
Fits GY6 125/150cc engine on ATVs, scooters and Go Karts. Teeth: 9; Length (end to end) 5; Length (main case: 3.5; Diameter: 2.35; Bolt hole spacing: 3, 2 bolt; Terminal connection: single post; Voltage system: 12V. Bronze/gold in color.
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Item No: PFS-158-3
Airsal 50mm Big Bore Cylinder Kit for QMB139 50cc Engines. Kit includes cylinder, piston, rings, piston pin, cir clips, and gaskets. Aluminum cylinder construction for better heat dissipation.
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Item No: PFS-169-54
Hoca 50cc QMB139 4-stroke 50mm, Racing Big Bore Cylinder Set. Kit includes cylinder, piston, rings, piston pin, cir clips, head gasket, and base gasket.
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Item No: PFS-169-70
SSP-G 50cc QMB139 4-stroke 50mm, performance cylinder head.
Please note: replaces Cylinder Heads with 64mm Valves (Short Valve Style).
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Item No: IBE-50-0002
List Price: $129.00
SALE PRICE: $79.00
You Save: $50.00 (39 %)
Drive Belt, factory oem replacement. FITS ALL GY6 50 139QMB engines
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Item No:
List Price: $149.00
SALE PRICE: $109.00
You Save: $40.00 (27 %)
Variator, factory oem replacement. FITS ALL GY6 50 139QMB engines
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Item No: PS164-201
18x3 Dipstick O-Ring
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Item No: PS151-113
Valve Guide O-ring
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Item No: PS151-135
Drain Bolt Washer
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Item No: PS151-163
Kick Start Gear Clip
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Item No: PS151-164
Washer
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Item No: PS151-24
Oil Dip Stick O-Ring
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Item No: PS151-241
Kickstarter Shaft Bushing
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Item No: PS151-27
30x3 Oil Filter O-ring
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