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Cat® 454-5091 Fuel Injector Assembly for 320D2, 323D3, and 527 Series Machinery

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  2. Cat® 454-5091 Fuel Injector Assembly for 320D2, 323D3, and 527 Series Machinery
Cat® 454-5091 Fuel Injector Assembly for 320D2, 323D3, and 527 Series Machinery
Cat® 454-5091 Fuel Injector Assembly for 320D2, 323D3, and 527 Series Machinery

Restore engine reliability with the Cat® 454-5091 Fuel Injector. Engineered for Cat 320D2, 323D3, and 527 machinery, this steel injector provides precision fuel delivery and superior emission control. Designed for high-pressure durability in professional B2B applications. Global export available for genuine-quality Caterpillar fuel system parts.

Technical Specifications 454-5091 - High-Precision Fuel Injector for CAT 320D2/323D3

454‑5091 Fuel Injector — High‑Precision High‑Pressure Fuel Atomization Injector

The Cat® 454‑5091 Fuel Injector is a high‑precision fuel delivery component for CAT 320D2 and 323D3 series engines. Made of high‑strength alloy steel, it delivers high‑pressure fine fuel atomization and precise injection timing, perfectly matching emission‑controlled engine systems. It ensures stable combustion, steady power output and reliable throttle response under variable‑load construction‑site working conditions.

1. Technical Specifications

Technical ParameterSpecification Details
Part Number454‑5091 (4545091)
Product TypeHigh‑Pressure Fuel Injector Assembly
Core MaterialHigh‑Grade High‑Strength Alloy Steel
Installation PositionCylinder Head Fuel Injection System
Applicable SystemEmission‑Compliant Electronic Fuel Injection System
Core FunctionHigh‑Pressure Fuel Injection & Fine Atomization

2. Machine Compatibility

This OEM‑direct‑replacement fuel injector fits the following CAT construction machinery models:

  • Excavators: 320D2/GC/L, 323D3, 324 Series Heavy‑Duty Excavators

  • Forestry Machinery: 527 Track‑Type Skidders

3. Key Features & Advantages

  • High‑Strength Heat‑Resistant Steel Body: Premium alloy steel resists combustion‑chamber high pressure and thermal fatigue, extending long‑term service life.

  • Emission‑Optimized Fuel‑Air Mixing: Precision‑calibrated spray pattern reduces harmful exhaust pollutants while maintaining excellent fuel‑economy performance.

  • CAT‑ECU‑Matched Tuning: Strictly calibrated to original engine performance maps, realizing stable idling and fast power response under changing working loads.

  • 1:1 OEM Plug‑and‑Play Design: Exact dimensional precision ensures seamless installation and perfect compatibility with original fuel system assemblies.

Commercial Reference Information
Product: High‑Precision Fuel Injector Assembly
Cross Part Number: 4545091
MOQ: 1 Unit
Warranty Period: 6 Months
Note: Regular fuel‑filter maintenance required to protect injector precision parts

For bulk wholesale, technical consultation and fuel‑injection‑system component solutions:

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

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