Weichai 612600020819 Crankshaft Pulley Assembly

Technical engineering specifications for Weichai part number 612600020819 crankshaft pulley assembly. Designed for LNG and CNG natural gas engine variants in the WP12 and WP13 series. This component integrates the harmonic balancer and multi-rib belt drive interface to transmit rotational force to engine accessories including alternator, compressor, and steering pump. Manufactured from high-strength cast iron to withstand torsional vibration and thermal cycling in heavy-duty commercial vehicle applications. Direct OEM replacement for Weichai natural gas engine platforms. Material composition features ductile iron construction with precision-machined belt grooves and mounting flange. Bolt pattern and diameter engineered to OEM specifications for Weichai WP12NG and WP13NG engine blocks. Cross-references Sinotruk Howo truck chassis part listings for natural gas powertrain configurations.