Volkswagen Seat Skoda Audi 1.4 TSI Fuel Injection Rail Line Injectors 04E133320D

Volkswagen Seat Skoda Audi 1.4 TSI Fuel Rail from the Injector Nozzles category is an original gasoline fuel system component, designed for 1.4 TSI engines in VAG group vehicles. It ensures stable gasoline supply to the injectors, which translates to smooth engine operation and the correct fuel dosage across the entire load range.

Specifications and technical data

• SKU: 04E133320D-1
• Mark: Seat
• Condition: Used
• OEM Part Number: 04E133320D
• Substitutable numbers: 04E133320D, 04E 133 320 D
• Fuel type: Petrol
• Category: Fuel Injectors

Purpose and Role of the 1.4 TSI Fuel Rail

The 1.4 TSI Fuel Rail plays a crucial role in the gasoline fuel system – it distributes fuel to individual injector nozzles under the correct pressure. In TSI engines, this directly impacts:

• stable idling and acceleration performance,
• correct formation of the fuel-air mixture in each cylinder,
• maintaining engine smoothness under varying loads and temperatures.

Thanks to its design tailored for TSI gasoline units, the fuel rail works with the engine's factory-fitted components, maintaining the parameters specified by the manufacturer.

Benefits of Using an Original Fuel Rail

Using a component from the Seat OE group allows for the preservation of the fuel system's factory operating characteristics. In practice, this means:

• precise fit to the cylinder head and injectors in the 1.4 TSI engine,
• compatibility with gasoline components used in Volkswagen, Seat, Skoda, and Audi vehicles,
• maintaining engine control unit parameters without the need for software modifications.

An original fuel rail is particularly important in turbocharged units, where precise fuel delivery affects performance, fuel consumption, and component durability.

Component Condition and Service Application

The presented 1.4 TSI engine fuel rail is a used part from disassembly. It is a practical service solution in situations where:

• the original fuel rail has suffered mechanical damage (e.g., cracking, deformation),
• there are problems with uniform gasoline supply to the injectors,
• the entire fuel system section needs replacement instead of a spot repair.

Choosing a used OEM part helps maintain fuel system integrity and reduce repair costs while preserving correct gasoline engine operating parameters.

Application in VAG Group Vehicles

The Volkswagen Seat Skoda Audi 1.4 TSI Fuel Rail is designed to work with TSI gasoline engines used in various models of the concern. Therefore, it can be used as a replacement for the factory component in vehicles equipped with the 1.4 TSI unit, provided it matches the manufacturer's specifications.

Before installation, it is recommended to verify compatibility with the specific engine version and gasoline fuel system configuration to ensure proper fitment and seal integrity.

Diagnostics and Knowledge of the Injection System

Problems with the injection system – in both gasoline and diesel engines – often present similar symptoms: uneven running, power loss, or increased fuel consumption. To expand your knowledge about typical injector failures, it is worth consulting the guide on diesel injector faults, their symptoms, and the consequences of neglect. Although it concerns diesel units, it helps to better understand the importance of a functional injection system in any engine type.

Other Seat Injector Nozzles

If you are looking for other Seat injector nozzles compatible with various models of this brand, check out our dedicated category: Seat injector nozzles. This is a convenient way to quickly compare available fuel system components and select the right part for your specific gasoline engine.