Starting Motor 3971612

Cummins
Part# 3971612
note
Electromechanical starter motor converting battery power to engine crankshaft rotation.
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Description

The Cummins Genuine Starting Motor (3971612) is an electromechanical device that initiates engine operation by converting electrical energy into mechanical torque to rotate the engine’s crankshaft. It is essential for starting commercial vehicle engines and interfaces with the battery, ignition system, and engine components to enable reliable engine startup.

Key Specifications

  • Application: Tier 3 3.3L B engines, 4B3.9, 6B5.9, B4.5, B5.9 G, B5.9 GAS PLUS CM556, QSB3.3 CM2150, QSB3.3 CM2250 EC, QSB3.9 30 CM550, QSB5.9 30 CM550
  • Function: Converts electrical energy to mechanical torque for engine crankshaft rotation
  • Compatibility: Cummins B series, QSB series engines
  • Construction: Steel housing, copper windings, gear-driven starter bendix
  • Features: 12V operation, solenoid engagement, planetary gear reduction, high torque output, integrated drive mechanism
  • Quality: OEM Cummins part

Shipping Info

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More Information

Current Part# 3971612
Part# variations 3971612 CUM,
3971612CUM
Manufacturer Cummins
Warranty Standard Manufactures