Genuine BMW N55 S55 Fuel Injector | Part No. 13647639994
Restore smooth idle, sharp throttle response and reliable power with a Genuine BMW N55 S55 fuel injector. If you are chasing a misfire, rough idle, long cranking, poor fuel economy or a check engine light on your BMW M2 Competition, M3, M4, M135i, 335i, 435i and more, a tired or faulty injector is often the cause. This OEM high pressure direct injector is the correct replacement for BMW N55 and S55 engines and is the right choice when maintaining or tuning your performance BMW.
Why choose a genuine BMW injector for N55 and S55 engines
- Direct replacement that fits and seals correctly first time
- Factory calibrated for accurate fuelling and clean spray pattern
- Restores lost performance and drivability on turbocharged N55 and S55 platforms
- Essential reliability upgrade when running Stage 1 or Stage 2 tunes
- Prevents over-fuelling, bore wash and catalyst damage caused by failing injectors
Key search terms and applications
BMW N55 fuel injector. BMW S55 fuel injector. Genuine BMW injector 13647639994. N55 injector replacement. S55 injector replacement. BMW M135i injector. BMW 335i injector. BMW 435i injector. BMW 535i injector. BMW 640i injector. BMW 740i injector. BMW M2 Competition injector. BMW M3 F80 injector. BMW M4 F82 injector. F series BMW injector. High pressure direct injector for N55 and S55 engines.
Symptoms that point to injector issues
- Misfire at idle or under load
- Rough idle, hesitation or stutter
- Fuel smell, increased fuel consumption or sooty tailpipes
- Check engine light with mixture or misfire fault codes
- Hard starting or long cranking when warm
What is included
1 x Genuine BMW fuel injector for N55 and S55 engines.
Fitting and coding
We strongly recommend replacing all six injectors together for consistent fuelling across all cylinders. After installation the injector(s) must be coded to the DME using the individual calibration data. Need a professional install and coding We can help. Nforcd is based in Warwickshire and offers supply, fitting and coding. Request a quote at Sales@nforcd.com.
Compatibility
This genuine BMW injector suits a wide range of N55 and S55 powered models. Popular applications include:
- 1 Series F20 F21 including LCI M135i M135ix
- 2 Series F22 M235i M235ix
- 3 Series F30 F31 F34 335i 335ix Hybrid 3
- 4 Series F32 F33 F36 435i 435ix
- 5 Series F07 GT F07 LCI F10 LCI F11 F11 LCI 535i 535ix Hybrid 5
- 6 Series F06 Gran Coupé F06 LCI F12 F12 LCI F13 F13 LCI 640i 640ix
- 7 Series F01 LCI F02 LCI 740i 740Li 740LiX Hybrid 7 Hybrid 7L
- M Series F87 M2 and M2 Competition F80 M3 F82 M4 F83 M4 including GTS and CS
- X Series F25 X3 35ix F26 X4 35ix X4 M40ix F15 X5 35ix X5 40eX F16 X6 35ix
Unsure on fitment We run a free compatibility check before dispatch. Simply provide your UK registration or the last 7 characters of your VIN at checkout so we can confirm the correct part for your car.
Part number
BMW 13647639994
Why buy from Nforcd
We supply and fit these injectors regularly for N55 and S55 owners who want OEM reliability and factory performance. Customers consistently report smoother idle, cleaner running and restored power after replacement. Buy with confidence and keep your BMW performing as it should.
Warranty
Two years manufacturer warranty for UK customers and one year manufacturer warranty for international customers when a VIN is provided at checkout and the vehicle is confirmed compatible.
Extra search help
Searches that lead here: BMW N55 injector kit, S55 injector kit, M2 Competition injector replacement, F80 M3 injector, F82 M4 injector, F30 335i injector, F20 M135i injector, F32 435i injector, OEM BMW fuel injector, direct injection injector for BMW turbo engines.