Product Overview

This high-quality remanufactured diesel fuel injector is a direct replacement for the Komatsu PC600-8 excavator engine. Designed for precision fuel delivery in common rail systems, this injector (OEM 33800-4A700 / 28236381) restores engine performance, fuel efficiency, and reliability. We supply this critical engine component globally, serving major markets in North America, Europe, Southeast Asia, the Middle East, and Australia. Each unit is rigorously tested to meet or exceed OEM specifications, ensuring a seamless fit and long service life for your heavy equipment.

Key Features & Benefits

• OEM-Grade Performance: Remanufactured to strict tolerances, ensuring precise fuel atomization for optimal combustion and power output in your PC600-8.
• Enhanced Durability: Constructed with high-speed steel for resistance to wear and corrosion, extending the injector’s lifespan in demanding working conditions.
• Fuel Efficiency: Restores the factory fuel injection curve, helping to reduce fuel consumption and lower operating costs per hour.
• Reliable Starting: Improves cold-start performance and reduces white smoke emissions common with worn injectors.
• Cost-Effective Solution: A premium remanufactured alternative to new OEM parts, delivering the same reliability at a fraction of the cost.

Technical Specifications

OEM Cross-Reference

This injector is a direct replacement for the following original equipment manufacturer (OEM) part numbers:

• Komatsu: 33800-4A700
• Komatsu Alternative: 338004A700, 33800-4A700
• Cross Reference: 28236381

Compatibility

• Primary Application: Komatsu PC600-8 Excavator
• Engine Model: SAA6D140E-5
• Fuel System: Common Rail (Denso HP3/HP4 compatible)

Global Supply & Distribution

We are a dedicated supplier of heavy equipment diesel engine parts with a robust global logistics network. We ship worldwide, ensuring fast and reliable delivery to major ports and industrial centers including Houston, Rotterdam, Dubai, Singapore, and Sydney. Our export experience covers over 30 countries, and we comply with all international trade regulations to ensure smooth customs clearance for our B2B clients.

Quality Assurance

• Manufacturing Standard: Remanufactured in ISO 9001 certified facilities using precision machining and assembly processes.
• Testing: Every injector undergoes 100% flow bench testing, including calibration for opening pressure, spray pattern, and leak-down performance.
• Warranty: Covered by a 6-month warranty against manufacturing defects. We stand behind the quality and reliability of our product.

FAQ

Q: Is this injector a direct bolt-on replacement for my Komatsu PC600-8?
A: Yes, this is a direct replacement for the OEM part number 33800-4A700 (also known as 28236381). It is designed for the SAA6D140E-5 engine in the Komatsu PC600-8 excavator. No modifications are required for installation.

Q: What is the difference between a remanufactured and a new injector?
A: Our remanufactured injectors are fully disassembled, cleaned, and inspected. All worn components (like nozzles and internal seals) are replaced with new parts. The injector is then reassembled and calibrated to meet OEM specifications, offering the same performance as a new unit at a lower cost.

Q: Do I need to replace the injector copper washers and O-rings when installing?
A: Yes, it is highly recommended to always install new copper washers and O-rings when replacing injectors. These are single-use sealing components. Failure to replace them can lead to combustion gas leakage, oil dilution, and poor engine performance.