Porsche 928 S4 ECU LH-Jetronic Bosch 0 280 002 504 | 1987–1993 |

Porsche 928 S4 LH-Jetronic ECU – Bosch 0 280 002 504 – 1987–1993 – Lifetime Warranty

Restore your classic Porsche's engine performance with this Porsche 928 S4 LH-Jetronic ECU Engine Control Module, Bosch part number 0 280 002 504. Listed for select 1987–1993 Porsche 928 models equipped with the 5.0L V8 engine and Bosch LH-Jetronic fuel injection system, this electronic control unit helps regulate fuel delivery and maintain proper engine operation.

Whether you're restoring a classic Porsche 928 S4 or replacing a faulty fuel injection computer, this Bosch ECU offers a replacement solution for vehicles equipped with the matching part number.

Product Specifications

• Make: Porsche

• Model: 928 S4

• Listed Fitment Years: 1987–1993

• Engine: 5.0L V8 (928 S4)

• Bosch Part Number: 0 280 002 504

• Part Number Without Spaces: 0280002504

• Part Type: ECU / ECM / Fuel Injection Control Module

• Fuel Injection System: Bosch LH-Jetronic

• Warranty: Lifetime Warranty

Vehicle Compatibility

• 1987 Porsche 928 S4

• 1988 Porsche 928 S4

• 1989 Porsche 928 S4

• 1990 Porsche 928 S4

• 1991 Porsche 928 S4

Additional Porsche 928 applications for 1992–1993 require separate verification. Model designation, engine specifications, and ECU compatibility vary by production year.

Why Choose This Porsche 928 ECU?

• Replacement for matching Bosch part number 0 280 002 504

• Designed for compatible Bosch LH-Jetronic fuel injection systems

• Helps restore proper fuel injection operation when the original ECU is defective

• Supports smooth engine performance and consistent fuel delivery

• Ideal for classic Porsche restoration and maintenance

• Backed by a Lifetime Warranty

Important Compatibility Information

Please confirm that your original ECU carries Bosch part number 0 280 002 504 before ordering.

The LH-Jetronic ECU primarily controls fuel injection and is separate from the ignition control module on applicable Porsche 928 models. Not all 1987–1993 Porsche 928 vehicles use the same ECU.

Order your Porsche 928 Bosch LH-Jetronic ECU today and keep your classic Porsche performing with Lifetime Warranty protection!