3917320 Cummins Crankshaft For 6C 6CT 6CTA 8.3L Engines

Product Brief:

This DCEC 6CTA mechanical pump crankshaft, benchmark overhaul part, 220–330HP, forged steel 8-counterweight for heavy-duty use: trucks, mixers, excavators, loaders, generators.

Specification:

✅ Highway trucks: Intermittent heavy load & frequent start-stop

✅ Construction machinery: Sustained high torque and impact load (excavators, mixers)

✅ Stationary generator sets: Long-term steady continuous operation

✅ General marine vessels

Why Choose US?

✔️ 100% genuine Cummins DCEC parts
✔️ Professional technical support for fitment verification・
✔️ Competitive wholesale pricing
✔️ Fast global shipping

FAQ

Q1: What engine does crankshaft 3917320 fit?
A1: It fits DCEC Cummins 6CT / 6CTA 8.3L mechanical pump engine, power range 220–330HP. Not for ISC8.3 / QSC8.3 electronic engines.

Q2: Can 3917320 be replaced by 3918986 directly?
A2: Yes. 3918986 is its upgraded successor, fully interchangeable with same mounting dimensions.

Q3: Does this crankshaft have crankshaft position signal tooth?
A3: No. It is designed for mechanical pump engines only, no signal tooth. Cannot be used on electronic fuel engines.