6251-71-1121 Fuel Injection Pump for PC400LC-8 PC450LC-8 Excavator 6D125 Diesel Engine

The 6251-71-1121 Fuel Injection Pump is a diesel engine fuel system replacement component offered for compatible PC400LC-8 and PC450LC-8 excavators equipped with 6D125 series diesel engines.

As an important part of the diesel fuel injection system, the fuel injection pump is responsible for supplying pressurized fuel to the engine's injection system according to the required operating conditions.

A properly functioning fuel injection pump helps maintain accurate fuel delivery, supporting stable combustion, efficient engine operation, and consistent power output.

The 6251-71-1121 fuel injection pump features a robust metal housing, precision-machined drive shaft, mounting flange, fuel connection ports, and integrated fuel control components.

Designed for heavy-duty diesel engine applications, this injection pump is suitable for compatible excavator engine repairs, fuel system maintenance, and replacement of worn or damaged fuel injection pump assemblies.

JISION supplies diesel fuel injection pumps, engine components, and construction machinery replacement parts to equipment owners, maintenance workshops, and international spare parts distributors.

Product Specifications

Key Features

1. Diesel Fuel Injection Control

Designed to supply pressurized diesel fuel to the corresponding fuel injection system, supporting the engine's required fuel delivery.

2. Precision-Machined Pump Components

Features precision-machined mechanical components and fuel passages intended for compatible diesel fuel injection applications.

3. Heavy-Duty Metal Housing

Constructed with a robust metallic housing suitable for demanding construction machinery engine environments.

4. Integrated Fuel Control Components

The pump assembly includes fuel control and connection components designed for the corresponding engine fuel injection system configuration.

5. Machined Drive Shaft

Equipped with a machined drive shaft intended to connect with the compatible engine's fuel pump drive mechanism.

6. Multiple Fuel Connection Interfaces

Features designated fuel connection points for integration with the corresponding diesel engine fuel system.

7. Suitable for Engine Maintenance

Offered as a replacement option for fuel injection system servicing, diesel engine repairs, and excavator maintenance.

8. Complete Fuel Injection Pump Assembly

The pictured product is supplied as an assembled pump unit. Exact accessories, fittings, programming, and calibration status should be confirmed before purchasing.

Compatible Excavator Models

Reference Equipment Models:

• PC400LC-8 Excavator

• PC450LC-8 Excavator

Reference Engine Series:

• 6D125 Diesel Engine

Reference Part Numbers:

• 6251-71-1121

• 6251711121

Important Compatibility Notice

Compatibility may vary depending on the excavator serial number, exact engine model, fuel injection system configuration, pump calibration, electronic control specifications, and original equipment part number.

Please verify the original pump identification plate, engine serial number, and equipment information before ordering.

The listed equipment and engine models are provided as application references and do not guarantee compatibility with every machine configuration.

Product Applications

The 6251-71-1121 fuel injection pump is offered for compatible applications involving:

• Excavator Diesel Engine Fuel Systems

• Diesel Fuel Injection Pump Replacement

• Construction Machinery Engine Maintenance

• Diesel Engine Fuel System Repair

• Heavy Equipment Engine Overhaul

• Fuel Injection System Servicing

• Excavator Engine Replacement Parts

Why Choose JISION?

Professional Construction Machinery Parts Supplier

JISION supplies engine replacement components, hydraulic parts, and electrical spare parts for excavators and heavy construction machinery.

Wide Range of Diesel Engine Parts

Our product range includes fuel injection pumps, fuel injectors, common rail components, fuel filters, turbochargers, starter motors, alternators, engine sensors, and other diesel engine spare parts.

International Parts Supply

We support construction machinery owners, equipment repair workshops, construction companies, and international spare parts distributors with product sourcing inquiries.

Part Number Identification Assistance

Customers can provide original pump part numbers, engine models, machine serial numbers, and product photos to help identify suitable replacement components.

Wholesale Inquiries Welcome

Contact JISION for bulk purchasing quotations, product availability, and international shipping arrangements.

Ordering Information

Product Name: Diesel Fuel Injection Pump

Part Number: 6251-71-1121 / 6251711121

Reference Excavator Models: PC400LC-8 / PC450LC-8

Reference Engine Series: 6D125

Application: Diesel Engine Fuel Injection System

To help ensure accurate product identification, please provide:

• Excavator Model

• Machine Serial Number

• Exact Engine Model

• Engine Serial Number

• Original Fuel Injection Pump Part Number

• Fuel Pump Identification Plate

• Pump Control and Calibration Requirements

• Photos of the Existing Fuel Injection Pump

Contact JISION for product specifications, pricing, stock availability, wholesale inquiries, and international shipping information.

JISION – Reliable Diesel Engine Fuel Injection Parts for Excavators and Heavy Construction Machinery.