Cylinder Heads

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Scooter Parts Catalog has the cylinder head parts for your 47cc, 50cc, 110cc, 125cc, 150cc, and 250cc scooter engine. Items related to the cylinder head parts are scooter pistons, intake valves, exhaust valves, rocker arms, chain tensioning parts, valve springs complete cylinders kits and more.
To rebuild or upgradeyour 4 stroke gas scooter engine get the correct cylinder parts. If you want to upgrade your scooter's performance check out our High Performance Cylinder Kits.
You will find cylinder head parts for Chinese-built 50cc GY6 QMB139, 125cc GY6 QMI152/157 and 150cc GY6 QMJ152/157 engines among others. We are constantly expanding our inventory of cylinder parts for all makes and models of gas scooters, so check this page often. Don't see what you need? Call Scooter Parts Catalog!


Koso 170cc Big Bore Kit With 4V Cylinder Head - Honda Grom
Regular Price: $1,400.00
Season Special: $1,039.99


43cc cylinder (139-2)

Regular Price: $38.00
Season Special: $22.99


49cc 2-stroke Cylinder (139-3)

Regular Price: $38.00
Season Special: $22.99


47cc Cylinder (139-4)

Regular Price: $34.00
Season Special: $22.49


Cylinder (151-13)

Regular Price: $66.00
Season Special: $39.99


Cylinder Head Non-EGR (151-213)

Regular Price: $56.00
Season Special: $39.99


Complete QMB139 PAIR Style Cylinder Head (151-240)
Regular Price: $63.00
Season Special: $44.99


Complete QMB139 Cylinder Head - Non Emissions (151-249)
Regular Price: $62.00
Season Special: $45.99


Complete QMB139 Cylinder Head - Non Emissions (151-253)
Regular Price: $55.00
Season Special: $39.99


47mm QMB139 Non Emissions Cylinder Head (151-256)
Regular Price: $55.00
Season Special: $29.99


47mm QMB139 Complete Non Emissions Cylinder Head (151-259)
Regular Price: $69.00
Season Special: $49.99


Cylinder Head EGR Style (151-76)

Regular Price: $56.00
Season Special: $39.99


90cc, 2-stroke Cylinder (161-208)

Regular Price: $80.99
Season Special: $56.99


Cylinder (161-35)

Regular Price: $89.00
Season Special: $49.99


GY6 Cylinder head EGR 57mm (164-208)

Regular Price: $67.00
Season Special: $39.99


150cc GY6 Complete Cylinder Head - Non Emission (164-301)
Regular Price: $83.00
Season Special: $59.99


150cc GY6 Complete Cylinder Head - Emission (164-302)
Regular Price: $93.00
Season Special: $69.99


150cc GY6 Cylinder Head (164-4)

Regular Price: $67.00
Season Special: $39.99


125cc GY6 54mm Cylinder Head (164-79)

Regular Price: $67.00
Season Special: $36.99


150cc GY6B Cylinder Head - Non Emission (165-2)
Regular Price: $56.00
Season Special: $39.99


TB60 Cylinder (169-192)

Regular Price: $42.99
Season Special: $29.99


Hoca GY6 61mm Cylinder Head (169-204)

Regular Price: $127.99
Season Special: $124.99


180cc Cylinder Head (169-205)

Regular Price: $154.99
Season Special: $110.99


Hoca GY6 63mm Cylinder Head (169-324)
Regular Price: $127.00
Season Special: $119.99


Hoca GY6 58.5mm Cylinder Head (169-325)
Regular Price: $127.00
Season Special: $124.99


Hoca 52mm QMB139 Performance Head (169-343)
Regular Price: $196.00
Season Special: $147.99


50cc GY6/QMB139 Performance Head (169-70)

Regular Price: $143.00
Season Special: $134.99


250cc Cylinder Body (180-123)

Regular Price: $90.00
Season Special: $69.99


Cylinder Head (148-1)

Regular Price: $39.00
Season Special: $27.99


Cylinder Cover Slip (151-118)

Regular Price: $8.00
Season Special: $3.49


Cylinder Head (161-34)

Regular Price: $77.00
Season Special: $25.99


GY6 180cc Valve Cover (169-413)
Regular Price: $35.00
Season Special: $24.99


Cylinder Head Cover (151-116)

Regular Price: $25.00
Season Special: $12.99


Naraku GY6 59mm Cylinder Head
Regular Price: $196.00
Season Special: $154.99


Naraku 70cc Performance Cylinder Head LC Piaggio (137-17)
Regular Price: $60.00
Season Special: $44.99


Universal Parts 50mm QMB139 Non Emissions Head 69mm Valves (151-266)
Regular Price: $58.00
Season Special: $51.99


Universal Parts 50mm QMB139 Non Emissions Head 64mm Valves (151-265)
Regular Price: $58.00
Season Special: $49.99


Universal Parts GY6 61mm Cylinder Head (164-314)
Regular Price: $69.00
Season Special: $60.99


Universal Parts 47mm QMB139 Non Emissions Head 69mm Valves (151-263)
Regular Price: $58.00
Season Special: $49.99


Koso 4V Cylinder Head Kit Honda Grom & Monkey (128-16)
Regular Price: $894.00
Season Special: $749.99


Universal Parts GY6 PAIR Block Off Plate (164-324)
Regular Price: $75.00
Season Special: $7.99


Universal Parts GY6 150cc Cylinder With 60.8mm Sleeve (164-313)
Regular Price: $29.00
Season Special: $14.99


Universal Parts Horizontal Honda Style Head 110cc (290-259)
Regular Price: $69.00
Season Special: $59.99


Universal Parts Horizontal Honda Style Cylinder 125cc (290-258)
Regular Price: $46.00
Season Special: $49.99