MTU Injectors & Fuel System Components

MTU common-rail and unit-pump fuel systems operate at extreme pressures — up to 2,200 bar on 4000 series engines. Injector performance directly determines combustion efficiency, exhaust emissions compliance, and fuel consumption. A single underperforming injector can cause cylinder imbalance, increased exhaust temperatures, and accelerated wear on piston rings and liners.

Our fuel system parts catalog covers the complete injection chain: injectors and nozzle holders, high-pressure pumps (HPFP), low-pressure feed pumps, pressure relief and limiting valves, fuel lines, and associated sealing elements. We supply new OEM, OEM-alternative, and professionally remanufactured injectors. Reman options follow standardized procedures including ultrasonic cleaning, new nozzle tips, and bench testing to verify spray pattern and opening pressure.

High-demand injectors include EX52407500064 for MTU 4000 series, X53507500012 for MTU 2000 series, and the L'Orange/Bosch variants used across multiple engine families. For injectors, always send the complete part number stamped on the injector body — not just the engine serial number — because multiple injector variants can exist within the same engine series depending on power rating and emissions certification.

Fuel pumps and pressure valves are also listed here. The X53508200001 low-pressure pump and E0060704101 high-pressure pump are common requests for 2000 series marine and generator applications. Pressure relief valves (5501801015, 5361800515) are critical for maintaining correct rail pressure and should always be verified by engine serial number before ordering.