CUMMINS 5273414 GENUINE CP3 FUEL PUMP DRIVE GEAR – OEM FOR 2003–2007 5.9L CUMMINS

The Cummins 5273414 Genuine CP3 Fuel Pump Drive Gear is the OEM gear that drives the high-pressure CP3 fuel pump on 2003–2007 Dodge Ram 5.9L Cummins common rail diesel engines. This precision-machined gear ensures correct fuel pump timing, stable injection pressure, and long-term reliability.

Whether you’re replacing a worn gear during a CP3 swap or completing a full fuel system rebuild, this gear is a critical component to maintain proper operation.

Features & Benefits

• OEM Quality: Manufactured by Cummins for perfect fit and performance.
• Precision Machined: Maintains accurate pump timing for optimum injection performance.
• Durability: Hardened steel construction for long service life under diesel torque loads.

Fitment

• 2003–2007 Dodge Ram 2500 & 3500 5.9L Cummins (CP3 common rail)
• May also fit certain ISB Cummins industrial engines — verify part number

Cross Reference Part Numbers

• Cummins 5273414
• Replaces: 4935429, 3975929
• Interstate McBee M-5273414

Frequently Asked Questions

Do I need to replace this gear when upgrading my CP3 pump?

Not always, but it’s recommended when your existing gear shows wear, pitting, or damage to ensure reliable operation.

Is installation difficult?

It requires front gear cover removal and proper torqueing of the CP3 gear bolt — best done with factory tools or by an experienced diesel technician.

Will this gear work with dual CP3 setups?

Yes. It functions as the primary pump drive gear in both stock and dual CP3 configurations.

Tags

cummins 5273414, cp3 fuel pump drive gear cummins, 5.9 cummins cp3 gear, dodge ram cp3 gear, OEM cummins cp3 pump gear, fuel system timing gear, cp3 drive gear replacement, common rail fuel pump gear