Replacement Parts GY6 50 139QMB (58)

Genuine quality replacement crank for 50/90cc 4-stroke engines (GY6 50, 139QMB/QMA). The crank is pre-pressed with main bearings and connecting rod. GY6 engines are factory fitted with 2 different crank...

Timing chain guide for GY6 50cc 139QMB/QMA engines. This guide is located opposite the chain tensioner and is positioned between the cylinder and the cylinder head. Porous or torn rubber...

Timing chain tensioner guide for GY6 50cc 139QMB/QMA engines.

Timing chain for GY6 50ccm 139QMB/QMA engines.

Complete timing chain tensioner for GY6 50cc 4-stroke engines. A gasket for the tensioner is not included and must be ordered separately. Complete timing chain tensioner for GY6 50cc 4-stroke...

Valve stem seal in original part quality from Taiwanese and Japanese car manufacturers. Naraku supplies a two-piece oil scraper ring set for the valves of 4-stroke cylinder heads. Increased oil...

Shim for positioning the alternator rotor on the crankshaft. Length: 13mm, Width: 3mm, Height: 2.5mm. Shim for positioning the alternator rotor on the crankshaft. Length: 13mm, Width: 3mm, Height: 2.5mm.

Kickstart ratchet collar for GY6 50. Kickstart ratchet collar for GY6 50.

Oil filter cap for GY6 50ccm 139QMB/QMA and 125ccm, 150ccm 152/157QMI 4-stroke engines. We recommend also renewing the appropriate seal BT14736. Oil filter cap for GY6 50ccm 139QMB/QMA and 125ccm,...