NEW Cummins 4B & 4BT Engine Crankshaft | 3903827, 3907803, 3929036, 3908031, 91832 | 4B / 4BT / 4-390 Cummins 3.9L

This is a new crankshaft for your 3.9 Cummins 4B / 4BT / 4-390, bearings not included is engineered specifically for these engines. This carries a two year warranty.

To meet rigorous operating conditions, including, high temperatures, and severe environments. These crankshafts are manufactured with tight tolerances, and are tailored to meet even the most demanding customer's operational needs. We may contact you to confirm the Engine Serial number / Vin so get that ready to ensure compatibility. Please note we are not responsible for miss-ordering the wrong parts. There will be a restocking fee for exchanges.

Features

• Flat Flange
• No Centering Ring
• 8 Bolt Holes
• 1 Dowel Hole
• 4 Bolt Holes on Snout
• Timing Gear Installed
• Left-Hand Helix
• 36 Teeth
• Part # 3901258
• 1 Keyway
• 4 Cylinder