Caterpillar fuel injection pump 326-4635 10R-7662 CAT C6.4 fuel pump 320D fuel pump 323D excavator fuel pump

◆ Product Overview
A precision-manufactured fuel injection pump designed for the Caterpillar C6.4 diesel engine, powering a range of excavators including the 320D, 320DL, 323D, 321D, 320DGC, 320DFM, and 320DRR. This direct OEM replacement for part numbers 326-4635 and 10R-7662 ensures accurate fuel metering, optimal combustion, and restoration of factory-rated power and efficiency for demanding earthmoving operations.

◆ OEM Part Numbers
✓ 326-4635
✓ 10R-7662

◆ Compatible Engine & Equipment
✓ Caterpillar C6.4 Engine
✓ CAT 320D, 320DL, 323D, 321D Excavators
✓ CAT 320DGC, 320DFM, 320DRR Excavators

◆ Product Specifications
✓ Condition: 100% New or Premium Remanufactured (As Specified)
✓ Type: High-Pressure Fuel Injection Pump
✓ Application: Excavator Diesel Engine
✓ Calibration: Pre-set to Caterpillar factory specifications for fuel delivery, timing, and pressure.

◆ Key Features
✓ Direct CAT OEM Replacement: Exact fit for the C6.4 engine in specified CAT excavator models.
✓ Precision Fuel Delivery: Ensures correct injection timing and quantity for maximum engine torque, power, and fuel economy.
✓ Robust Construction: Built to withstand the high pressures and vibrations of excavation work.
✓ Performance Restoration: Effectively addresses engine issues such as power loss, excessive smoke, poor throttle response, and hard starting.

◆ Quality Assurance
✓ Performance Tested: Each pump is bench-tested to verify correct flow rates and pressure curves.
✓ Leak & Pressure Integrity Tested: All seals and internal components are validated for reliability.
✓ Calibration Verified: Set to meet Caterpillar’s stringent standards for performance and emissions.

◆ Installation Applications
✓ Replacement of a failed or underperforming injection pump on C6.4-powered CAT excavators.
✓ Major fuel system overhaul during engine rebuild or scheduled major service.
✓ Correction of diagnostic trouble codes related to fuel pressure and delivery.
✓ Preventive maintenance to ensure long-term reliability and minimize unscheduled downtime.

◆ Service Advantages
✓ Restores Full Digging Performance: Returns the excavator to its rated horsepower and hydraulic force.
✓ Protects Your Investment: Proper fuel system function is essential for the longevity of your CAT machine.
✓ Improves Job Site Efficiency: Optimized combustion improves fuel efficiency and reduces operating costs.
✓ Wide Model Coverage: One part number serves multiple 320D/323D series excavator configurations.