The new double-groove piston grid is integrally injection-molded from high-strength engineering wear-resistant material, featuring a well-structured shape that resists deformation. Its double-groove design delivers precise positioning and firm clamping.
The surface is smooth and friction-resistant, free from scuffing and jamming, perfectly suited for the reciprocating motion of the gearbox range gear piston.
It boasts excellent oil resistance, high and low temperature resistance, and aging resistance. It will not harden or crack even after long-term immersion in gearbox oil, maintaining lasting toughness and stable fit without looseness.
Made to precise original dimensions with reasonable assembly clearance, it provides outstanding limiting and guiding performance. It effectively prevents eccentric wear and positional deviation of the piston, improves the response speed of pneumatic shifting, and reduces faults such as air leakage and shifting stagnation. Compatible with new-style Sinotruk gearboxes, it is durable, reliable and easy to replace.






