Excavator Connecting Rod

We use high-grade forged steel with an optimized I-beam profile to balance rigidity and weight. Every rod is shot-peened to relieve internal stresses, then precision-machined to maintain the correct oil clearance at both the small end (for the piston pin and bushing) and split big end (for the crankshaft journal). The included high-tensile rod bolts are torqued to OEM specifications, so you won't risk bolt stretch or failure under full load. Each unit is fully inspected for dimensional accuracy and structural integrity before leaving our facility.

This Doosan connecting rod 150121-00270A is designed as a direct drop-in replacement, with no modifications required. It's built for the harsh working conditions of mining, quarrying, and earthmoving work, where engines run at high loads for hours on end. For full engine overhauls, we always recommend replacing all connecting rods as a matched set to maintain uniform weight balance and prevent uneven wear across the crankshaft.