Heads & Parts

Exhaust Bolts
Exhaust Bolts
Part #: 148-118
Price: $ 1.49
Exhaust Bolt for 50cc 2-stroke 1DE41QMB, QMB139 and GY6 engines.
GY6 Valve Cover Gasket
GY6 Valve Cover Gasket
Part #: 164-24
Price: $ 2.99
Valve Cover Gasket for 150cc and 125cc GY6 4-stroke engines and 150cc GY6 4-stroke ZNEN engines commonly found in Bintelli, Gorilla Motor Works (GMW) and Puma scooters.
QMB139 Carburetor Insulator
QMB139 Carburetor Insulator
Part #: 151-7
Price: $ 1.99
Carburetor Insulator for 50cc 4-stroke QMB139 engines.
Valve Cover Gasket
Valve Cover Gasket
Part #: 151-5
Price: $ 2.99
Valve Cover Gasket for 50cc 4-stroke QMB139 engines.
Intake Manifold O-ring
Intake Manifold O-ring
Part #: 151-8
Price: $ 0.99
Intake manifold O-ring Gasket for 50cc, 4-stroke QMB139 engines.
Exhaust Gasket
Exhaust Gasket
Part #: 130-41
Price: $ 2.99
Exhaust gasket for 180cc GY6 Engines such as the cylinder head on our 180cc Big Bore Head kit, part # 169-99 and 49cc to 125cc 4-stroke, horizontal cylinder style engines.
PAIR Style Valve Cover Gasket
PAIR Style Valve Cover Gasket
Part #: 151-117
Price: $ 2.99
Valve Cover Gasket PAIR Style for 50cc 4-stroke QMB139 engines.
10x16 GY6 Cylinder Head Dowel Pin
10x16 GY6 Cylinder Head Dowel Pin
Part #: 164-169
Price: $ 1.49
Cylinder Head Dowel Pin for 150cc and 125cc GY6 4-stroke engines. (ID: 8.5mm, OD: 10mm, L: 15.8mm)
M6x1.00 GY6/QMB139 Intake Manifold Studs
M6x1.00 GY6/QMB139 Intake Manifold Studs
Part #: 175-13
Price: $ 2.99
M6x1.00 Intake Manifold Studs commonly found on 150cc, 4-stroke GY6 engines and 50cc, 4-stroke QMB139 engines.
Cam Chain Adjuster Gasket
Cam Chain Adjuster Gasket
Part #: 164-87
Price: $ 1.49
Cam Chain Adjuster Gasket for 150cc and 125cc 4-stroke GY6 Engines and 150cc GY6 4-stroke ZNEN engines commonly found in Bintelli, Gorilla Motor Works (GMW) and Puma scooters.
150cc GY6 Complete Cylinder Head - Non Emission
150cc GY6 Complete Cylinder Head - Non Emission
Part #: 164-301
Price: $ 59.99
Complete Non Emissions 57mm Cylinder Head for GY6 4-stroke engines.
GY6 Valve Cover
GY6 Valve Cover
Part #: 164-227
Price: $ 21.99
Valve Cover for 125cc and 150cc GY6 engines.
Hoca 50mm QMB139 Performance Head
Hoca 50mm QMB139 Performance Head
Part #: 169-70
Price: $ 129.99
Hoca 50cc QMB139 4-stroke 50mm, performance cylinder head.
QMB139 48mm Cylinder Head Gasket
QMB139 48mm Cylinder Head Gasket
Part #: 151-6
Price: $ 2.99
48mm Cylinder Head Gasket for 50cc 4-stroke QMB139 engines.
Complete QMB139 Cylinder Head - Emissions
Complete QMB139 Cylinder Head - Emissions
Part #: 151-240
Price: $ 44.99
Universal Parts Completely Assembled PAIR Style Cylinder Head for 50cc 4-stroke QMB139 engines.
8x14 Dowel Pin
8x14 Dowel Pin
Part #: 151-99
Price: $ 1.99
Camshaft Dowel Pin for 50cc 4-stroke QMB139 engines. (ID: 7mm, OD: 8mm, L: 13.75mm)
Complete QMB139 Cylinder Head - Non Emissions
Complete QMB139 Cylinder Head - Non Emissions
Part #: 151-249
Price: $ 44.99
Completely Assembled Non Emissions Style Cylinder Head with 69mm Valves for 50cc 4-stroke QMB139 engines.
47mm QMB139 Complete Non Emissions Cylinder Head 69mm Valves
47mm QMB139 Complete Non Emissions Cylinder Head 69mm Valves
Part #: 151-263
Price: $ 49.99
50cc QMB139 4-stroke 47mm Non Emissions Cylinder Head with 69mm Valves for use with 72cc Big Bore Kit.
Adjustment Screw and Nut Set
Adjustment Screw and Nut Set
Part #: 151-102
Price: $ 2.99
Camshaft Adjustment Screw and Nut Set for 50cc 4-stroke QMB139 engines.
GY6 Camshaft Holder
GY6 Camshaft Holder
Part #: 164-166
Price: $ 12.99
Camshaft Holder for 150cc and 125cc GY6 4-stroke engines and 150cc GY6 4-stroke ZNEN engines commonly found in Bintelli, Gorilla Motor Works (GMW) and Puma scooters.
150cc GY6 Complete Cylinder Head - Emission
150cc GY6 Complete Cylinder Head - Emission
Part #: 164-302
Price: $ 69.99
Complete Emissions Type 57mm Cylinder Head for GY6 4-stroke engines.
50cc, 2-Stroke Head Gasket
50cc, 2-Stroke Head Gasket
Part #: 161-50
Price: $ 3.99
Cylinder Head Gasket for 50cc 2-stroke Minarelli 1PE40QMB Jog engines
150cc GY6B Complete Cylinder Head - Non Emission
150cc GY6B Complete Cylinder Head - Non Emission
Part #: 165-33
Price: $ 59.99
Complete 57mm Non-Emissions Cylinder Head for 150cc GY6B 4-stroke ZNEN engines commonly found in Lance Phoenix, Flyscooters Cadenza, ZNEN ZN150T-18, Xingyue ITA-150, Motorino Cassini, CMS Prodigy, BMS Pathfinder and many more.
Hoca 52mm QMB139 Performance Head
Hoca 52mm QMB139 Performance Head
Part #: 169-343
Price: $ 139.99
Hoca 50cc QMB139 4-stroke 52mm, performance cylinder head.
Breather Pipe Gasket
Breather Pipe Gasket
Part #: 151-121
Price: $ 0.99
Breather Pipe Gasket for 50cc 4-stroke QMB139 engines.
Complete QMB139 Cylinder Head - Non Emissions
Complete QMB139 Cylinder Head - Non Emissions
Part #: 151-253
Price: $ 39.99
Completely Assembled Non Emissions Style Cylinder Head with 64mm Valves for 50cc 4-stroke QMB139 engines.