Crankshaft w/Gear | Cummins ISX / QSX Engine | 4925762 / 3608889

Fits Application: Cummins ISX Series

Model: ISX / QSX

Details: Crankshaft with Gear

A high-quality, direct-fit replacement crankshaft designed for long-lasting durability and OE-grade performance in Cummins ISX and QSX engines. Manufactured to precise specifications, this crankshaft with gear restores proper rotating assembly function, eliminates vibration, and ensures stable engine operation under heavy-duty load.

This Cummins ISX / QSX crankshaft with gear is engineered to meet or exceed OEM standards for strength, balance, and reliability. Built from premium forged steel and precision-machined for perfect journal sizing, it is ideal for complete engine overhauls, rebuilds, or repairing crankshaft scoring, wear, or failure.

Whether you’re maintaining an ISX on-highway truck or a QSX industrial application, this crankshaft provides the durability required for high horsepower and long service intervals.

Why Replace Your Crankshaft?

Common ISX/QSX crankshaft failure symptoms include:

• Low oil pressure
• Vibration or knocking
• Worn bearings
• Metal contamination in oil
• Scoring on crank journals
• Replacing a damaged crankshaft ensures:
• Proper oil flow
• Smooth engine operation
• Reduced wear on bearings
• Extended engine lifespan

Direct Replacement for Multiple OEM Numbers

This crankshaft replaces the following OE part numbers, ensuring wide compatibility across ISX & QSX platforms: 171658, 4925762, 3608889, 3681911, 3691444, 4330732, 4923646, 4925762, 5440758, 4925761

Pre-Installed Crankshaft Gear

Comes with the crankshaft gear installed—reducing installation time and ensuring proper timing alignment.

Precision-Machined Journals

• Ground to exact factory tolerances
• Ensures proper oil clearance
• Reduces friction and bearing wear
• Restores smooth rotation and engine balance

Heavy-Duty Forged Steel Construction

• Designed to handle the extreme demands of:
• Long-haul trucking
• Agricultural equipment
• Construction machinery
• Industrial Cummins QSX power units