Delphi HM10089 Direct Injection High Pressure Fuel Pump - Left or Right

Overview of Delphi Direct Injection High Pressure Fuel Pump HM10089

The Delphi HM10089 is a mechanical direct injection high pressure fuel pump designed for select Mercedes-Benz models. Engineered for gas fuel systems, this external fuel pump ensures reliable fuel delivery with precision and durability.

• Compatible with Mercedes-Benz CL63 AMG, CLS63 AMG, E63 AMG, G63 AMG, GLS63 AMG, Maybach S550, and other models
• Mechanical pump type with metal housing for enhanced durability
• Threaded inlet and outlet fittings (M16-1.0) for secure connections
• Blade terminal type with two male terminals for electrical connection
• External mounting with no included mounting hardware or gasket

Technical Specifications and Features

The HM10089 fuel pump features a robust metal housing finished in silver, designed to withstand the demands of high pressure fuel delivery in direct injection systems. It includes two threaded outlets and one threaded inlet, both sized M16-1.0, ensuring compatibility with factory fuel lines. The pump uses a blade terminal type with two male terminals for electrical connectivity. This standard replacement grade pump does not include mounting hardware, gaskets, or a wiring harness, so these components must be sourced separately if needed.

Compatible Mercedes-Benz Models

This Delphi direct injection high pressure fuel pump is compatible with a range of Mercedes-Benz vehicles, including but not limited to:

• CL63 AMG, CL550
• CLS63 AMG, CLS63 AMG S, CLS550
• E63 AMG, E63 AMG S, E550
• G63 AMG, GL63 AMG, GL450, GL550
• GLE63 AMG, GLE63 AMG S, GLS63 AMG, GLS550
• Maybach S550
• ML63 AMG, ML550
• S63 AMG, S550
• SL63 AMG, SL550

Common Applications and Issues Addressed

• Restores proper fuel pressure in direct injection systems
• Resolves engine performance issues related to fuel delivery
• Eliminates rough idling or stalling caused by fuel pump failure
• Prevents fuel leaks with secure threaded inlet and outlet fittings
• Supports consistent engine power and efficiency in high-performance Mercedes-Benz models

Installation Notes and Tips

Installation of the Delphi HM10089 requires attention to the specific vehicle’s fuel system layout. Since mounting hardware and gaskets are not included, ensure you have the correct components before beginning installation. The pump’s external design allows for straightforward replacement, but proper torque on the M16-1.0 threaded fittings is essential to prevent leaks. Verify electrical connections match the blade terminal type with two male terminals. Refer to the vehicle’s service manual for position-specific installation guidance.

Quality Assurance and Warranty

Delphi manufactures the HM10089 as a standard replacement part meeting OEM specifications for fit and function. The metal housing and mechanical pump design provide durability under demanding conditions. While specific warranty details may vary, Delphi parts typically come with a limited warranty covering defects in materials and workmanship. Consult the product documentation or supplier for exact warranty terms.