YNF16423 108-6503 Piston CAT330D / E336CG SBS180 Travel Motor Piston Assembly

The YNF16423 piston, compatible with OEM numbers 108-6503 and 325-2100, is engineered for the CAT330D and CAT E336CG travel motor model SBS180. This piston is a critical internal component that maintains hydraulic pressure, power transmission, and rotational stability for the final drive system. A worn piston can cause severe issues such as weak travel power, pressure loss, vibration, and increased wear on internal motor components.

Manufactured from heat-treated alloy steel and precision-ground surfaces, the YNF16423 piston ensures optimal sealing, high strength, and stable hydraulic performance even under heavy excavation loads. It is built to operate in harsh environments such as quarrying, mining, and long-hour construction applications.

Trusted by repair centers, heavy equipment fleet operators, and aftermarket distributors, this piston provides an OEM-level, cost-effective solution for maintaining the travel motor’s reliability. Replacing the piston restores torque output, travel speed, and overall machine efficiency.