Compatible with common diesel engine models such as 170F, 170FA, 178F, 178FA, 186F, and 186FA, offering strong compatibility and suitability for repair and maintenance.
Dimensions are 58x49.5x0.2mm. Used for fine-tuning the fuel pump clearance to meet the engine's fuel injection precision requirements.
Made of metal, it maintains its shape and is not easily deformed even under high temperature and high vibration environments.
Proper use of the shims can improve fuel injection timing and fuel efficiency, contributing to smoother engine starting and more stable power output.
Each set includes 4 adjusting shims for convenient repeated adjustments or as spare parts.