GBR 852-12109 Fuel Injector

Reman Multi Port Fuel Injector for Mercedes-Benz

GBR Reman Multi Port Fuel Injector 852-12109 is a remanufactured OEM-style fuel injector for select Mercedes-Benz V8 applications. It is built for direct replacement use on Mercedes-Benz E420, S420, S500, SL500, E500, 400E, 400SE, 400SEL, 500E, 500SEC, 500SEL, and 500SL models listed below.

GBR’s remanufactured OEM fuel injector line is processed in a U.S.A. facility using a 15-step remanufacturing method. Each injector is tested across multiple operating conditions to verify flow rate, spray pattern, coil resistance, form, fit, and function. New external seals and O-rings are included.

Key Features

• Remanufactured OEM fuel injector for multi port fuel injection systems
• Direct replacement application for select Mercedes-Benz models
• Tested for flow rate, spray pattern, coil resistance, form, fit, and function
• Remanufactured in the U.S.A. using a 15-step process
• Includes new external seals and O-rings
• Part number 852-12109 for catalog and service matching

Detailed Description

Part number 852-12109 is a reman multi port fuel injector built for Mercedes-Benz fuel injection service where OE-level fit and operating characteristics are required. It is listed for 1992-1993 Mercedes-Benz 400E, 400SE, 500E, 500SEL, 500SL, and 500SEC; 1993 Mercedes-Benz 400SEL; 1994 Mercedes-Benz E500, S420, S500, and SL500; 1994-1995 Mercedes-Benz E420; and 1995-1997 Mercedes-Benz E420, plus 1995 Mercedes-Benz S420, S500, and SL500. This injector is also listed for 1995 Mercedes-Benz S420, S500, and SL500 with the note to replace the fuel filter when the injector is serviced.

This part cross-references no listed aftermarket part numbers in the provided data. Use 852-12109 when sourcing a remanufactured fuel injector for Mercedes-Benz E420 or Mercedes-Benz S500 service work.

Common Repair Uses

• Fuel delivery issues caused by a worn or inconsistent injector
• Uneven spray pattern affecting combustion quality
• Incorrect injector flow rate on Mercedes-Benz V8 engines
• Coil resistance concerns during injector diagnosis
• Hard starting, rough idle, or fuel trim imbalance tied to injector performance

Installation Notes and Tips

Confirm the injector part number and vehicle application before installation. For 1995 Mercedes-Benz S420, S500, and SL500 applications, follow the note to replace the fuel filter when the injector is serviced and refer to Technical Bulletin TB-0119-EFS. Inspect the fuel rail, connectors, and sealing surfaces during replacement, and verify proper sealing after installation.

Quality Assurance

GBR remanufactures this injector in the U.S.A. using a controlled 15-step process and tests each unit under multiple operating conditions. The injector is verified to meet or exceed OE specifications for flow rate, spray pattern, coil resistance, form, fit, and function.