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Cylinder Head GY6 (Without SAS) 50cc

GY6 Item no.: OE-GY6BT12277

Cylinder Head GY6 (Without SAS) 50cc


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Data Sheet
Suitable for (19)


Complete cylinder head for the 50cc 139QMB/QMA engine. Different from many other cylinder heads on the market, this one comes complete, i.e. valves, valve springs, valve stem seals etc. are completely pre-assembled. This way, the cylinder head is ready to be installed and the pesky replacing and grinding-in of the valves, which would also require special tools, is not necessary.
The head comes without secondary air system (SAS), which can simply be blinded off. This results in smoother running and a bit more torque.

Data Sheet

Name Cylinder Head GY6 (Without SAS) 50cc
Item No. OE-GY6BT12277
Brand GY6
Homologation No
Homologation Yes
Stroke Original
Conrod Length Standard
Engine Type 2-stroke

Your product goes with the following manufacturers and their models:

Adly (Her Chee)

BT 50cc 4-stroke


BT49QT 7 - 4-stroke

BT49QT 9 - 4-stroke

BT49QT 12 - 4 Temps

BT49QT 21B2 - 4-stroke

BT49QY 2 - 4-stroke

BT50QT 9 - 4-stroke

BT50QT 11 - 4-stroke

BT 50cc AC - 4-stroke

Tanco 50 - 4-stroke (BT49QT-12F)


Silver 50cc - 4-stroke

Speedy 50cc - 4-stroke

TVZ 50cc - 4-stroke

Tanco 50cc - 4-stroke

Warrior 50cc - 4-stroke

Wind 50cc - 4-stroke

ZX 50cc - 4-stroke


Ecobike 50cc 4-stroke

REX (Jinan Qingqi, Shenke)

Capriolo 50cc AC 4-stroke

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