BMW 1 3 5 Series E60 E87 E90 E91 Diesel pressure pump fuel injection 7788670

The BMW E46 E87 E90 Injection Pressure Pump is a specialized component of the fuel supply system for Diesel engines, designed for BMW 3 and 1 Series models. It ensures precise fuel delivery at the correct pressure, contributing to stable engine operation and proper interaction with the injection system.

Specifications and technical data

• SKU: 7788670
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 13517788670
• Substitutable numbers: 13518511824, 8511824, 13517797413, 13517787199, 13517795714, 13517805522, 13517807288, 77974137787199779571478055227807288, 65139226357, 9226357
• Fuel type: Diesel
• Category: Hoses, Lines & Pipes

Purpose and Function in the Fuel System

The BMW E46 E87 E90 Injection Pressure Pump operates within the high-pressure system of diesel engines, responsible for generating and maintaining the correct fuel pressure in the fuel rail. A properly functioning pump is crucial for:

• stable cold and warm engine starts,
• smooth idling,
• correct fuel metering under load,
• maintaining optimal combustion parameters and power.

This component works in conjunction with the engine control system, pressure sensors, and injectors, forming a cohesive Diesel fuel supply system.

Compatibility and Interchange Numbers

The offered pump is from the BMW group and is dedicated to selected versions of the E46, E87, and E90 models with diesel engines. The part has an original manufacturer number and assigned interchange numbers, which facilitates the selection of the correct component when comparing with a catalog or an existing part in the vehicle. This allows for safe matching of the pump to a specific engine configuration, minimizing the risk of installation incompatibility.

Technical and Operational Characteristics

The pump is designed to operate in Diesel systems requiring high operating pressure and resistance to variable load conditions. The manufacturer's design ensures:

• adequate performance at different engine speeds,
• compatibility with factory electronic control,
• maintenance of pressure parameters within the range required by the injection system.

As a component from the Hoses, Pipes, and Tubes category, the pump interacts with the vehicle's fuel system, where a sealed and correct connection with the fuel supply and return lines is essential.

Product Condition and Service Application

The offered pump is a used component, making it an attractive cost-effective alternative to new parts, especially for repairs on older BMW E46, E87, and E90 models. It serves as a service solution in situations where the existing pump shows signs of wear, such as starting problems, power loss, or unstable fuel pressure.

The selection of the correct pump for a specific engine should always be preceded by verifying the part number and interchange numbers in the service documentation or manufacturer's catalog, which helps avoid incorrect installation and subsequent operational issues.

Why Choose This Pump for Your BMW

Choosing an original solution from the BMW group ensures compliance with the vehicle's factory specifications, which is important for the durability of the fuel system and correct engine operation. A used injection pressure pump can be a rational choice for:

• routine maintenance on vehicles with higher mileage,
• limited service budget,
• the need for a quick replacement of a damaged component.

With correct selection and installation, it provides a solid foundation for restoring the proper operating parameters of the injection system in a diesel engine.

If you are modernizing or servicing the fuel system in your BMW and also need other components related to the fuel circuit, supply and return lines, check the available parts in the BMW Hoses, Pipes, and Tubes category.

If you are interested in a broader context of selecting used powertrain components, including principles for assessing the condition of parts and avoiding common purchasing mistakes, it is worth reading the guide Second-hand Differential – What You Should Know About Used Differentials, Sensors, and Drivetrain Systems.