Description
Connecting rod bolts are the most critical fasteners in the engine. ARP rod bolts are made from premium alloy, heat-treated, then thread-rolled and cycle-tested to be many times more fatigue-resistant than factory bolts, keeping the rod caps clamped at high rpm and high cylinder pressure.
ARP part number: 247-6304
Application: Cummins 4BT 3.9L
Material: ARP2000 alloy (approx. 220,000 psi tensile strength)
Fitment
- Cummins 4BT 3.9L
Features
- Made in the usa
- 200,000 psi tensile strength
- 8740 alloy chrome-moly steel
- Substantially stronger than oem
What's Included
- Connecting rod bolts (complete set for one engine)
- ARP assembly lubricant
ARP installation instructions & torque specs (PDF)
Always follow ARP's published torque values and use the supplied ARP lubricant for accurate preload.
