Connecting Rod 4943977 for Cummins QSB6.7 Engine – High-Strength Replacement
Stop unexpected engine failures and extend your Cummins QSB6.7’s service life with a high-strength connecting rod 4943977 built to OEM torque specs and fatigue-tested for real-world load cycles. Forged 4340 alloy steel — the same material used in premium racing rods, not cast or sintered like budget alternatives Pre-machined big-end bore with precise 0.0002″ tolerance ensures perfect crankshaft alignment and eliminates bearing walk Ready to ship today from our Guangzhou warehouse — no waiting 3+ weeks for OEM backorders Each rod is individually balanced and marked with batch traceability for full accountability