1707843 BMW M62 E38 E39 X5 V8 Fuel Injector – OEM Used & Tested

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This BMW petrol fuel injector is a genuine OEM electromagnetic fuel metering component for M62 V8 petrol engines found in the BMW E38 7 Series, E39 5 Series and X5. Primary OEM number 1707843. It is designed to open and close on command from the engine control unit, delivering a precise, finely atomized spray of fuel into the intake port so that fuel and air mix evenly before combustion takes place in the cylinder.

Its job is to deliver the exact amount of fuel each of the eight cylinders needs at every load and engine speed, with a stable spray pattern and a quick, repeatable opening and closing response on every cycle. A properly working injector supports smooth idle, strong V8 throttle response, stable fuel trims, reasonable fuel economy and correct operation of the fuel system and emissions control as a whole.

Common signs of a faulty unit include misfires on one cylinder, rough or uneven idle, hard starting, hesitation under acceleration, higher fuel consumption, a raw fuel smell and lean or rich mixture fault codes on one bank. When an injector leaks, clogs or sticks, the engine may run unevenly, lose power, overheat a cylinder or damage the catalytic converter and shorten engine life over time.

This is a used original part, removed from a vehicle and tested before sale. Match the exact OEM number 1707843 before ordering. Professional installation is recommended, and a fuel pressure check, new seals and O-rings, injector balance test, fuel rail inspection and scan tool diagnosis are advised where applicable.