10R-7938 Fuel Injector for CAT 320D Excavator C6.4 Engine - High Precision Fuel Injection

Premium 10R-7938 fuel injector for CAT 320D and 323D excavators with C6.4 engines. High-pressure common rail injector ensuring optimal combustion and fuel efficiency. Reliable aftermarket and OEM options.

  • Part Number: 10R-7938
  • Product Name: Fuel Injector Assembly
  • Applicable Model: CAT 320D, 321D, 323D
  • Brand: For Caterpillar
  • Condition: New Aftermarket / Remanufactured
  • MOQ: 1 - 6 PCS
  • Warranty: 6 - 12 Months
Technical Specifications 10R-7938 - Fuel Injector for CAT 320D/C6.4

10R-7938 Fuel Injector — Precision Common Rail Component

The 10R-7938 Fuel Injector is a high-precision common rail injector designed for the Caterpillar C6.4 ACERT engine. Used in 320D-series excavators, it delivers accurate fuel atomization and injection timing to ensure strong power output, low fuel consumption, and stable engine performance in heavy-duty construction operations.

1. Technical Specifications

Technical ParameterSpecification Details
Part Number10R-7938 (Remanufactured)
Cross Reference326-4700, 321-3600, 3264700
Engine TypeCAT C6.4 ACERT Diesel Engine
Fuel SystemHigh-Pressure Common Rail (HPCR)
MaterialHigh-Strength Alloy Steel for Extreme Pressure
Core FunctionPrecision Fuel Injection & Atomization Control

2. Machine Compatibility

This injector is compatible with the following Caterpillar machines:

  • Excavators: 320D, 320D L, 320D GC, 320D LN, 321D LCR, 323D, 323D L

  • Industrial Units: All equipment powered by the CAT C6.4 engine

3. Key Features & Advantages

  • Factory Calibration: Calibrated to match ECM specifications for balanced cylinder performance and smooth engine operation.

  • Optimized Atomization: Precision-machined nozzle improves combustion, reduces smoke, and lowers fuel consumption.

  • Engine Protection: Stable injection maintains proper cylinder pressure and temperature to reduce long-term wear.

  • Wear-Resistant Internals: Hardened valves and nozzles resist contamination and abrasion from low-quality fuels.

Technical Installation Note
Keep the injector and fuel system clean during installation to avoid contamination. After installation, program the injector trim codes into the ECM to ensure optimal engine balance and performance.

For commercial inquiries, bulk orders, or technical support:

Xuzhou Sinoswift Import & Export Co., Ltd.
Contact: +86 13701956981
Email: [email protected]

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