Volvo 3801263 Electronic Unit Injector with 4-Pin Connector, OEM-Level Calibration & Reliable Heavy-Duty Performance for FH/FM Trucks

We are a professional diesel fuel system manufacturer specializing in Electronic Unit Injectors (EUI), Common Rail Injectors, High Pressure Fuel Pumps and Diesel Engine Control Components for heavy-duty trucks, construction machinery and industrial diesel applications.

Our Volvo 3801263 EUI Fuel Injector is designed for Volvo D12 and D13 series diesel engines, widely used in Volvo FH/FM heavy trucks, construction equipment and other commercial diesel applications.

With a reliable 4-pin electronic connector design, precision-machined internal components and professional injector calibration technology, this injector provides accurate fuel metering, stable injection timing and consistent fuel atomization.

For truck repair workshops and engineering machinery service providers, injector performance directly affects engine power output, fuel efficiency and operating reliability. A worn injector may lead to:

• Difficult engine starting
• Unstable idle operation
• Reduced engine power
• Excessive exhaust smoke
• Increased fuel consumption
• Poor combustion performance

Our Volvo 3801263 injector is manufactured and tested to provide a dependable replacement solution for professional maintenance applications.

Product Advantages

1. 4-Pin Electronic Unit Injector for Accurate Injection Control

The Volvo 3801263 injector adopts advanced EUI electronic injection technology, combining:

• High-pressure pumping unit
• Electronic control valve
• Precision spray nozzle
• 4-pin electrical connector

The electronic control system allows accurate adjustment of:

• Fuel injection quantity
• Injection timing
• Injection pressure response

This helps the engine maintain:

✓ Stable combustion
✓ Smooth acceleration
✓ Reliable power output
✓ Improved fuel utilization

2. Precision Atomization for Volvo D12/D13 Heavy-Duty Engines

Heavy-duty diesel engines require injectors that can maintain consistent performance under long working hours and high-load conditions.

Our engineers optimize injector machining accuracy and internal sealing performance to achieve:

• Uniform fuel atomization
• Stable spray pattern
• Accurate fuel delivery
• Reduced incomplete combustion

The 3801263 injector is suitable for:

• Volvo FH series trucks
• Volvo FM series trucks
• Construction machinery
• Heavy-duty diesel maintenance applications

3. 100% Professional Bench Testing Before Shipment

As a manufacturer, we understand that injector reliability directly affects repair efficiency and customer satisfaction.

Before delivery, every Volvo 3801263 injector passes professional inspection procedures:

✓ Injection volume testing
✓ Fuel leakage inspection
✓ Electrical response testing
✓ Spray performance verification
✓ Pressure holding test
✓ Operating stability calibration

Only qualified products are shipped to our global customers.

This testing process helps reduce installation problems and unnecessary downtime for repair companies.

4. Durable Construction for Long-Term Heavy-Duty Operation

The injector body is manufactured using high-strength components designed for demanding diesel environments.

It is engineered to withstand:

• Continuous engine operation
• High temperature conditions
• Heavy vibration
• Long-distance transportation
• Construction working environments

Professional sealing components help maintain stable fuel pressure and reduce internal leakage risks.

Volvo 3801263 Fuel Injector Specifications

Volvo EUI Injector Compatible Reference List

Why Choose Our Volvo 3801263 Injector?

Professional Diesel Fuel System Manufacturer

We supply diesel fuel system components for:

• Heavy truck repair workshops
• Construction machinery service companies
• Industrial engine maintenance providers
• Diesel spare parts distributors
• International wholesalers

Our main products include:

• Electronic Unit Injectors (EUI)
• Common Rail Fuel Injectors
• High Pressure Fuel Pumps
• Engine Control Modules (ECU)

Our Engineering Quality Control Process

Every injector is inspected by our technical team before shipment.

Our engineers check:

• Fuel injection accuracy
• Electrical performance
• Internal sealing condition
• Spray consistency
• Operating stability

This ensures our customers receive reliable products suitable for professional installation.

Supply Advantages for Global Customers

We support worldwide B2B customers with:

✓ Factory direct supply
✓ Competitive wholesale pricing
✓ Flexible MOQ
✓ Mixed part number orders
✓ Neutral export packaging
✓ Customized packaging service
✓ Fast international delivery
✓ 12-month warranty support

Our engineers can also assist customers with injector matching based on:

• Original injector number
• Engine model
• Equipment model
• Working application

Installation Recommendations

Before ordering Volvo 3801263 injector, please confirm:

1. Original injector part number
2. Engine model
3. Equipment application
4. Connector specification

After installation:

• Check injector electrical connection
• Confirm ECU compatibility
• Perform engine running test

Correct injector matching helps avoid repeated replacement costs and ensures stable engine performance.

Frequently Asked Questions

1. Can Volvo 3801263 injector directly replace my original injector?

Yes, it is designed as a replacement injector for compatible Volvo D12/D13 diesel engines.

Please send us your original injector number and engine information. Our engineers will confirm compatibility before shipment.

2. Are all injectors tested before delivery?

Yes. Every injector is tested before shipment, including fuel delivery, leakage performance and electrical response inspection.

3. What quality options can you provide?

We supply:

• New Original Quality
• OEM Replacement Quality
• Remanufactured Quality

4. Do injectors include calibration information?

Yes. Calibration information is available according to injector model and product specification.

5. What is your delivery time?

For available stock products, shipment is normally arranged within 3-7 working days.

6. Can I mix different injector models in one order?

Yes. We support mixed part number orders for distributors, repair workshops and maintenance companies.