cylinder head assy incl. valves with SAS / EGR system cylinder head assy

Complete cylinder head for the 50cc 139QMB / QMA engine. Unlike many cylinder heads offered, this one comes complete. This means valves, valve springs, valve stem seals, etc. are completely pre-assembled. The cylinder head is therefore ready for installation and the fiddly replacement and grinding of the valves in connection with required special tools is no longer necessary.

The head is supplied with connection for secondary air system [SLS].

The scope of delivery does not include rocker arm bridge and camshaft. Delivery is as shown._{AI-translation}