Special piston, which increases the head volume, increases the engine compression ratio, and improves the engine power output; Adding micro arc oxidation treatment to the head to improve the service life of the piston (CG175-A);

Micro arc oxidation of the special piston head provides thermal insulation and improves piston service life

（CG200-A/CG250-A）

The use of five springs with six discs and widened friction discs greatly increases the service life;

The use of six springs, six columns, and BM103 friction discs makes their combination more stable, wear-resistant, and significantly increases their service life (CG175-A);

The use of six springs and six columns, BM103 friction discs, and thickened teeth make their combination more stable, wear-resistant, and significantly increase their service life (CG200-A/CG250-A);

Adopt KU high-quality needle rollers, widen the connecting rod, enhance the bearing capacity, and improve the reliability of the engine

（CG175-A）;

Adopt KU high-quality needle roller, with stronger bearing capacity and improved engine reliability

（CG200-A）；

Adopt KU high-quality enlarged needle roller bearings, widened connecting rods, stronger bearing capacity, and improved engine reliability (CG250-A);

The use of platform mesh technology makes the formation of oil film easier. Improved lubrication between the cylinder block, piston, and piston ring, and improved engine reliability (CG150-A/CG175-A/CG200-A/CG250-A);

Adopt rotors to increase inertia, improve engine starting and acceleration performance;

DLC piston rings are used to improve engine service life