Piston Driver Assembly 878 428 Automotive Engine Tool Replacement for HITACHI NV83A NV83A2 Nailers

1、Applicable Model: Piston driver direct replacement for HITACHI NV83A NV83A2 please confirm the model carefully to ensure precise fit. 2、Part Number: Manufactured according to strict original specifications this piston driver assembly reference part number is 878 428. 3、Main Function: Locking mechanism which will not allow the driver to unscrew from the piston. Aluminum is crimped into the unilock grooves of the shaft to prevent unscrewing. 4、Durable Construction: Aerospace grade aluminum pistons and heat treated tool steel provide high strength for long lasting durability. 5、Direct Replacement: This nailer piston driver matches the fit and function of the factory part on specified models is a reliable replacement part.