New Nt855 Ptg-vs High Pressure Fuel Injection Pump 3655233-g 4930965 For D80/85 Bulldozer 1972-1983

Product Details

Product Overview

This high-pressure fuel injection pump, model PTG-VS, is a direct replacement component specifically designed for Cummins NT855-C280 diesel engines. It is commonly used in Komatsu D80 and D85 bulldozers manufactured between 1972 and 1983, delivering a power output range of 172-179 kW at 1800 RPM.

Manufactured to strict OEM specifications, this unit carries the critical part numbers 3655233-G and 4930965, ensuring it meets the exacting fuel delivery requirements of the NT855 series. Whether you are servicing a heavy construction fleet or rebuilding a classic earthmoving machine, this pump provides the necessary reliability and performance for demanding applications.

Key Features & Benefits

• Precision Engineering: Manufactured to match OEM flow rates and pressure specifications for the NT855-C280 engine, ensuring optimal fuel atomization and combustion efficiency.
• Direct Fit Replacement: Designed as a bolt-on replacement for the PTG-VS pump assembly, minimizing installation downtime and reducing the need for modifications.
• High-Pressure Delivery: Supports the 172-179 kW power band required by D80/85 bulldozers, maintaining consistent performance under heavy load conditions.
• Durable Construction: Built with high-grade materials to withstand the vibration, heat, and operational stress of heavy equipment applications.
• Verified Part Numbers: Cross-referenced against OEM numbers 3655233-G and 4930965 for accurate fitment and compatibility verification.
• Reliable Fuel Control: The PTG-VS governor system provides stable speed regulation, critical for precise blade control and consistent engine operation.

Technical Specifications

OEM Cross-Reference

This fuel injection pump is designed as a direct replacement for the following OEM and reference part numbers:

• OEM Number: 3655233-G
• OEM Number: 4930965
• Associated Injector: 3054218

Please verify your existing pump’s part number against the list above before ordering. The pump is designed for the PTG-VS governor configuration specific to the NT855-C280 engine platform.

Compatibility

This fuel injection pump is commonly used for the following equipment and engine combinations:

• Engine: Cummins NT855-C280
• Vehicle/Equipment: Komatsu D80 Bulldozer (1972-1983)
• Vehicle/Equipment: Komatsu D85 Bulldozer (1972-1983)
• Power Range: 172-179 kW at 1800 RPM

Note: Fitment is based on original equipment specifications. Please cross-reference your engine model and pump serial number to confirm compatibility.

Global Supply & Distribution

We offer worldwide shipping for this fuel injection pump, serving major industrial markets across North America, Europe, the Middle East, Southeast Asia, and Australia. Our logistics network ensures fast and reliable delivery to major ports and inland distribution centers, including Rotterdam, Los Angeles, Dubai, and Singapore.

With extensive export experience in heavy equipment parts, we provide professional packaging and full customs documentation to ensure smooth international transactions. Bulk orders and consolidated shipping options are available for commercial buyers and fleet operators.

Quality Assurance

Each fuel injection pump undergoes rigorous testing to verify pressure output, flow rate, and governor response before shipment. Our manufacturing process adheres to ISO quality management standards, ensuring consistent product quality across all units.

We stand behind our products with a 3-month warranty against manufacturing defects. All units are supplied in new condition, properly sealed and protected for secure transit. Should any issues arise, our technical support team is available to assist with troubleshooting and replacement procedures.

FAQ

Q: Is this pump a direct replacement for the original PTG-VS pump on my D85 bulldozer?
A: Yes, this pump is designed as a direct replacement for the PTG-VS model used on the NT855-C280 engine. It matches the OEM mounting flange, drive coupling, and fuel line connections for D80/85 bulldozers from the 1972-1983 production period. However, we recommend comparing your existing pump’s part number (3655233-G or 4930965) to confirm compatibility.

Q: Do I need to adjust the pump timing after installation?
A: Yes, proper injection timing is critical for optimal engine performance. While the pump is calibrated to factory specifications, timing must be set according to the NT855-C280 service manual after installation. We recommend consulting a qualified diesel technician to ensure correct timing and fuel delivery settings for your specific application.

Q: What injectors are compatible with this pump?
A: This pump is designed to work with injector part number 3054218, which is the standard injector for the NT855-C280 engine in this application. Using non-compatible injectors can affect fuel pressure and atomization. Always verify injector specifications against your engine’s requirements to maintain proper system balance.