1521977 Fuel Injector 3 Key Advantages: OEM Matching, 1600 Bar High Pressure, Stable Fuel Atomization for Scania DT12 Diesel Engine

Product Overview

As a professional diesel fuel system manufacturer and supplier, we provide 1521977 Fuel Injector with reliable performance, accurate fuel delivery and strict quality control for heavy-duty repair applications.

The 1521977 diesel injector is a high-precision fuel injection component designed for Scania DT12.03 / DT12.05 / DT13 heavy-duty diesel engines. It is widely used in Scania 4 Series, P/G/R/T Series trucks, long-haul tractors, logistics vehicles and engineering trucks.

This injector is developed as a direct replacement solution for original fuel injection systems. It maintains accurate fuel metering, stable injection timing and consistent spray performance, helping repair workshops restore engine power, improve fuel economy and reduce repeated maintenance problems.

For global truck repair shops and diesel spare parts distributors, we supply brand-new and professionally remanufactured 1521977 injectors, with complete bench testing, 12-month warranty and worldwide delivery support.

Why Choose Our 1521977 Fuel Injector?

1. OEM-Compatible Design for Fast Installation

Our 1521977 injector is manufactured according to original equipment specifications and cross-reference standards.

Compatible OE numbers include:

• 1521977
• 1521978
• 0445120074

It is designed for direct replacement without additional mechanical modification, helping technicians complete injector replacement quickly and reduce installation time.

Compatible engines:

• Scania DC12.03
• Scania DC12.05
• Scania DC13 diesel engines

Compatible vehicles:

• Scania 4 Series trucks
• Scania P Series trucks
• Scania G Series trucks
• Scania R Series trucks
• Scania T Series tractors

2. 1600 Bar High-Pressure Injection for Better Combustion Performance

The injector adopts high-pressure common rail fuel injection technology with a maximum working pressure of approximately 1600 Bar.

The precision nozzle structure provides:

• Stable fuel spray pattern
• Uniform fuel atomization
• Accurate injection quantity control
• Improved combustion efficiency

During long-distance transportation and heavy-load operation, it helps solve common diesel engine problems:

• Weak engine power
• Poor acceleration response
• Excessive fuel consumption
• Unstable idle speed
• Increased exhaust smoke
• Cylinder combustion imbalance

3. 100% Bench Tested Before Shipment

Every 1521977 injector supplied by us passes professional inspection procedures before delivery.

Our testing process includes:

• Injection quantity testing
• Spray pattern inspection
• Fuel leakage testing
• Injection pressure verification
• Electrical signal performance testing

Only qualified injectors are shipped to customers.

This quality control process helps repair workshops avoid installation failures and repeated troubleshooting after replacement.

Engineering Structure & Durability Advantages

To meet the working conditions of heavy commercial vehicles, our injectors use:

• High-strength wear-resistant internal components
• Pressure-resistant sealing structure
• Heat-resistant sealing rings
• Precision-machined injector body

The injector is designed to withstand:

• Long-distance highway operation
• Frequent engine start-stop cycles
• High engine temperature environment
• Continuous heavy-load transportation

It provides stable fuel delivery performance for fleet trucks and commercial vehicles.

Common Faults Solved After Injector Replacement

When the original injector becomes worn or damaged, customers may experience:

✔ Engine power loss
✔ Slow acceleration
✔ Rough idle operation
✔ Excessive black smoke
✔ Increased fuel consumption
✔ Difficult cold starting
✔ Engine vibration
✔ Fuel leakage

Replacing with a properly tested 1521977 injector can help restore normal combustion performance.

Supply Capability & Service Support

We are a professional supplier specializing in diesel fuel injection system components, including:

• Fuel injectors
• Electronic unit injectors (EUI)
• Common rail injectors
• High-pressure fuel pumps
• Engine ECU modules

Our advantages:

Factory Direct Supply

We provide competitive wholesale pricing for:

• Diesel repair workshops
• Truck maintenance centers
• Fleet service companies
• Spare parts distributors

Flexible Order Support

We support:

• Small trial orders
• Mixed part number orders
• Bulk wholesale purchasing
• Neutral export packaging
• Customized customer packaging

Global Warranty

All injectors include:

• 12-month quality warranty
• Technical matching support
• Professional installation guidance
• Worldwide shipping solutions

Product Specification Table

Frequently Asked Questions

1. Can this injector fit my truck directly?

Yes, but correct matching is required.

Please provide:

• Truck model
• Engine model
• Production year
• Original injector number

Our engineers will confirm compatibility before shipment.

2. Does the injector require calibration after installation?

Yes.

For professional repair results, technicians should check injector parameters and complete ECU adaptation procedures according to the vehicle system requirements.

3. What quality options are available?

We provide:

• Brand New Injector
• OEM Quality Injector
• Professionally Remanufactured Injector

All units are tested before shipment.

4. What warranty do you provide?

All 1521977 injectors come with:

12-month global warranty

5. How fast can you ship?

For stocked items:

3-7 working days worldwide delivery

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

Yes.

We support mixed MOQ purchasing for diesel injector wholesalers and repair workshops.

Your Reliable Diesel Injector Partner

We focus on supplying reliable diesel engine spare parts for global customers.

With professional testing equipment, experienced engineers and stable inventory, we help diesel repair companies solve difficult matching problems and reduce maintenance risks.

Whether you operate a truck repair workshop, fleet maintenance center or diesel parts distribution business, we provide:

• Stable quality products
• Competitive factory prices
• Technical matching support
• Fast international delivery

Choose us as your long-term diesel fuel system partner.