6WG1 Diesel Engine Overhaul Kit For Isuzu 6WG1 Engine Repair Kit

Complete in-frame overhaul kit for the Isuzu 6WG1 15.7L engine. Includes gasket set with seals, semi-finished cylinder liners, pistons with pins and rings, main and rod bearing sets and thrust washers. Fits Hitachi ZX450-3, ZX850-3 and ZX870R-3 excavators. Matched by engine serial number.

The Isuzu 6WG1 is the power unit of the largest machines in the Hitachi ZX lineup, from the ZX450-3 up to the ZX870 class, where the engine carries the full weight of multi-tonne digging forces for thousands of hours a year. At overhaul time, an in-frame rebuild with a complete kit is the established practice on these machines: the kit replaces every wear item that controls compression, oil consumption and bearing clearance in one pass, so the machine returns to production with predictable cost. Because the 6WG1 uses semi-finished cylinder liners, the kit is supplied with the engine serial number confirmed, and final liner sizing is carried out during the rebuild to match the piston specification.