Description

Piston Pin P-3901793 The P-3901793 Piston Pin Set (x4) is a premium OEM-grade replacement wrist pin designed for heavy-duty diesel engines operating under extreme load, temperature, and high-compression environments. Engineered for durability, precision fitment, and long-term reliability, this piston pin set ensures proper connection between the piston and connecting rod while minimizing wear and maintaining smooth reciprocating motion. Manufactured from hardened, wear-resistant steel, each piston pin provides exceptional strength and resistance against scuffing, galling, and deformation—especially critical in turbocharged and high-output diesel engines. The pins are precision-ground to exact tolerances to ensure perfect piston fit, proper lubrication clearance, and improved engine performance. This set of four piston pins cross-references OEM 3901160 , offering direct-fit compatibility for professional rebuilds, in-frame overhauls, and machinery requiring reliable wrist pin performance. ✔ Key Features & Technical Advantages OEM-spec P-3901793 piston pin set (x4) Direct replacement for OEM 3901160 Hardened steel construction for maximum durability & heat resistance Precision-ground for smooth operation & reduced friction Maintains accurate piston-to-rod alignment Reduces wear, piston slap, and engine noise Essential for full rebuilds, overhauls & high-performance diesel applications Supports stable combustion and improves longevity of the piston assembly