Premium Engine Overhaul Rebuild Kits for Komatsu 4D88E Series

Restore the performance and longevity of your equipment with a comprehensive overhaul rebuild kit for Komatsu 4D88E-3, 4D88E-5, and 4D88E-6 engines. These kits are specifically engineered for PC40MR-2 and PC50MR-2 excavators, providing all the critical internal components needed for a professional-grade engine restoration.

The 4D88E engine is a 2.19L 4-cylinder diesel engine with a bore of 88mm and stroke of 90mm. Most kits feature semi-finished cylinder liners, which are designed to be pressed into the block and then machined to a precise final dimension for an optimal seal. Using a complete kit ensures that all rotating and sealing components meet consistent tolerances, reducing the risk of premature wear after assembly.