10R-0782 10R-7222 Diesel Fuel Injector for 3126B 3126E Engine Excavator Fuel Injection Parts

The 10R-0782 Diesel Fuel Injector is a replacement fuel injection component offered for compatible 3126B and 3126E diesel engine applications used in excavators and heavy construction machinery.

Also known as a Diesel Engine Fuel Injector, HEUI Injector, Electronic Unit Injector, or Fuel Injection Nozzle Assembly, this component is designed to support controlled diesel fuel injection within the corresponding engine fuel system.

In compatible Hydraulically Actuated Electronically Controlled Unit Injection (HEUI) systems, pressurized engine oil provides the hydraulic force required for fuel injection, while electronic controls regulate injection timing and operation.

A correctly matched and properly functioning fuel injector helps deliver the required quantity of diesel fuel to the engine combustion chamber, supporting combustion efficiency, stable engine operation, and the engine's intended power output.

The product features a precision-machined metallic injector body, yellow electrical actuator housing, mounting flange, multiple sealing rings, and a metal injection nozzle tip.

The reference numbers 10R-0782 and 10R-7222 are associated with diesel fuel injector products; however, their interchangeability must be verified using the original equipment parts catalog.

JISION supplies diesel fuel injectors, fuel system replacement components, engine overhaul parts, and construction machinery spare parts to machinery owners, diesel engine repair workshops, and international distributors.

Product Specifications

Key Features

1. Controlled Diesel Fuel Injection

Designed to supply metered diesel fuel into the combustion chamber according to the corresponding engine's fuel injection requirements.

2. HEUI Fuel Injection Technology

For applicable 3126B and 3126E engine configurations, the injector works with the engine's hydraulic and electronic control systems to support the fuel injection process.

3. Precision-Machined Metal Body

Features machined metallic surfaces and cylindrical structures intended for accurate positioning in the compatible engine injector installation.

4. Integrated Electrical Actuator

Includes an electrical actuator housing for receiving signals from the corresponding engine electronic control system.

5. Multiple Sealing Rings

Features sealing components intended to separate designated fluid passages and support correct installation within the injector bore.

6. Metal Injection Nozzle

Equipped with a precision nozzle section designed for fuel delivery into the corresponding diesel engine combustion chamber.

7. Integrated Mounting Flange

The injector incorporates a mounting structure intended for installation in the designated cylinder head location.

8. Suitable for Diesel Engine Maintenance

Offered as a replacement option for compatible diesel engine fuel system repairs, injector servicing, and engine overhaul applications.

Compatible Engine Models

Reference Engine Models:

• 3126B Diesel Engine

• 3126E Diesel Engine

Reference Equipment Applications for 10R-0782:

• 322C Excavator

• 325C Excavator

• Selected 950G II Wheel Loaders

• Selected 962G II Wheel Loaders

• Other Compatible Construction Machinery Applications

Reference Part Numbers:

• 10R-0782

• 10R0782

• 10R-7222 (Compatibility to Be Confirmed)

• 10R7222 (Compatibility to Be Confirmed)

Important Compatibility Notice

Compatibility depends on engine serial number, injector configuration, fuel injection system type, electronic calibration, and original equipment part number.

The 10R-0782 and 10R-7222 reference numbers should not be assumed to be interchangeable without verification.

Please confirm the original fuel injector number, engine serial number, and equipment identification before purchasing.

The reference applications are provided for product identification and do not guarantee compatibility with every engine configuration.

Product Applications

The diesel fuel injector is offered for compatible applications involving:

• 3126B Diesel Engine Fuel System Maintenance

• 3126E Diesel Engine Injector Replacement

• Excavator Diesel Engine Servicing

• HEUI Fuel Injection System Repair

• Construction Machinery Engine Maintenance

• Diesel Engine Fuel Injector Replacement

• Heavy Equipment Engine Overhaul

Installation and Maintenance Recommendations

Correct diesel fuel injector installation is essential for safe operation and reliable engine performance.

Before installation:

1. Verify the injector part number and engine serial number.

2. Confirm the required injector calibration and engine configuration.

3. Inspect the injector bore and cylinder head installation area.

4. Check the injector sealing rings and mounting components.

5. Clean the relevant fuel and engine oil passages according to the manufacturer's service instructions.

6. Install the injector using the specified mounting hardware and tightening torque.

7. Complete any required electronic injector calibration or programming.

8. Check engine operation and inspect for fuel or oil leakage after installation.

Safety Notice: Diesel fuel injection and HEUI hydraulic actuation systems may operate at extremely high pressures. Installation, testing, and servicing should be performed by qualified technicians using the appropriate service procedures.

Why Choose JISION?

Professional Construction Machinery Parts Supplier

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

Wide Range of Engine Fuel System Parts

Our product range includes diesel fuel injectors, HEUI injectors, fuel injection pumps, high-pressure oil pumps, fuel pump plungers, fuel filters, sensors, and other engine replacement components.

International Parts Supply

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

Part Number Identification Assistance

Customers can provide original injector numbers, engine serial numbers, equipment models, and injector photos to help identify suitable replacement components.

Wholesale Inquiries Welcome

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

Ordering Information

Product Name: Diesel Fuel Injector Assembly

Main Reference Number: 10R-0782

Additional Reference Number: 10R-7222

Reference Engine Models: 3126B / 3126E

Application: Compatible Diesel Engine Fuel Injection Systems

To help ensure accurate product selection, please provide:

• Engine Model

• Engine Serial Number

• Excavator or Equipment Model

• Machine Serial Number

• Original Fuel Injector Part Number

• Injector Identification Markings

• Injector Electrical Connector Configuration

• Required Injector Calibration Information

• Required Purchase Quantity

• Photos of the Existing Fuel Injector

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

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