Hoca 50mm QMB139 Performance Cylinder Kit parts
 50mm QMB139 Performance Cylinder Kit   |
Item No: PFS-169-54
Brand: Hoca
This item is not returnable
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.
Please see our
Return Policy.
We recommend that you use
our QMB139 performance cylinder head (PFS-169-70) with this set as some
stock cylinder heads will not fit. Use with an un-modified stock head can cause
serious engine damage.
*You may need to modify your
engine case to accommodate the larger cylinder.
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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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.
new
15-lbs
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Red/Black/Blue
PFS-169-54
Hoca
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: 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-169-70
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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