Fuel Injector 79041023044 for Husqvarna Motorcycle FC250 FC350 FC450 FE350 FE450 FE501 FS450 FX350 FX450 2017-2022
This fuel injector is engineered as a direct replacement for the Husqvarna Motorcycle FC250 FC350 FC450 FE350 FE450 FE501 FS450 FX350 FX450 2017-2022. Manufactured to meet or exceed OEM specifications, it delivers reliable performance in demanding conditions. Each unit is tested for fuel flow, pressure rating, and durability before leaving the factory to ensure consistent quality across every order.
Vehicle Compatibility
| Application | Details |
|---|---|
| Fuel Injector 79041023044 for Husqvarna Motorcycle FC250 FC350 FC450 FE350 FE450 FE501 FS450 FX350 FX450 2017 | 2022 Condition: New Aftermarket Part Note: We recommend replacing the entire set of fuel injectors to ensure the engine’s optimal performance. Due to differences in oil output and atomization concentration between genuine and aftermarket parts, they should not be mixed. Replacing the entire set of injectors helps avoid potential issues. Replacement Part Number: 79041023044 Applications:Fit for following models: KTM Motorcycle: 2015 250 SXF2015 250 SXF Factory Edition2015 250 XC-F2016 250 SXF2016 250 SXF Factory Edition2016 250 XC-F2016 350 SXF2016 350 XC-F2016 450 SXF2016 450 SXF Factory Edition2016 450 XC-F2017 250 SXF2017 250 SXF Factory Edition2017 250 XC-F2017 350 SXF2017 350 XC-F2017 450 EXC F Six Days2017 450 SXF2017 450 SXF Factory Edition2017 450 XC-F2017 500 EXC F2018 250 SXF2018 250 XC-F2018 350 SXF2018 350 XC-F2018 450 EXC F Six Days2018 450 SXF2018 450 SXF Factory Edition2018 450 XC-F2018 500 EXC F2019 250 SXF2019 250 XC-F2019 350 SXF2019 350 XC-F2019 450 EXC F Six Days2019 450 SXF2019 450 SXF Factory Edition2019 450 XC-F2019 500 EXC F2020 250 SXF2020 250 XC-F2020 350 SXF2020 350 XC-F2020 450 SXF2020 450 XC-F2021 250 SXF2021 250 XC-F2021 350 SXF2021 350 XC-F2021 450 SMR2021 450 SXF2021 450 XC-F2022 250 SXF2022 250 SXF Factory Edition2022 350 SXF2022 350 XC-F2022 350 XC-F Factory Edition2022 450 SXF Husqvarna Motorcycle: 2016 FC3502016 FC4502017 FC2502017 FC3502017 FC4502017 FE3502017 FE4502017 FE5012017 FS4502017 FX3502017 FX4502018 FC2502018 FC3502018 FC4502018 FC450 Rockstar Edition2018 FE3502018 FE4502018 FE5012018 FS4502018 FX3502018 FX4502019 FC2502019 FC3502019 FC4502019 FC450 Rockstar Edition2019 FE3502019 FE4502019 FE5012019 FS4502019 FX3502019 FX4502020 FC2502020 FC3502020 FC4502020 FC450 Rockstar Edition2020 FS4502020 FX3502020 FX4502021 FC2502021 FC3502021 FC4502021 FC450 Rockstar Edition2021 FS4502021 FX3502021 FX4502022 FC2502022 FC250 Rockstar Edition2022 FC3502022 FC4502022 FC450 Rockstar Edition2022 FS4502022 FX3502022 FX450 GASGAS Motorcycle: 2021 EX250 F2021 EX350 F2021 EX450 F2021 MC250 F2021 MC450 F2022 EX250 F2022 EX350 F2022 EX450 F2022 MC250 F2022 MC350 F2022 MC450 F2022 MC450 F Troy Lee Designs |
Replaces OEM Part Numbers
79041023044 • 2017-2022
Signs You Need a Replacement
If your equipment is showing any of these symptoms, the injectors & nozzle may be the cause:
- Rough idle or misfire — Uneven fuel delivery from a worn injector causes the engine to shake at idle. On engines, this is often accompanied by a knocking sound under load.
- Black or white exhaust smoke — Black smoke means excess fuel; white smoke indicates incomplete combustion. Both point to injector spray pattern degradation.
- Loss of engine power — A single failing injector reduces cylinder output. Multi-cylinder engines lose noticeable power when one injector flows less than the rest.
- Increased fuel consumption — Poor atomization means the engine burns more fuel to produce the same power. Monitor your fuel burn rate as an early warning sign.
- Hard starting or no start — If the injector doesn’t deliver fuel on cranking, the cylinder won’t fire. This is especially common in cold weather with worn nozzles.
- Fuel in engine oil (dilution) — Fuel leaking past the injector seat seal contaminates the crankcase oil. If the oil level rises or smells of diesel, inspect the injectors immediately.
Replace as a Set
Replace all injectors as a set whenever possible. On engines, mixing old and new injectors creates uneven fuel delivery — the new injectors compensate for the worn ones, shortening their life. When installing, use new copper sealing washers and torque to the specification in the service manual. After installation, run the engine at idle for 5 minutes to bleed air from the fuel system, then check for leaks at each injector connection before putting the machine under load.
Frequently Asked Questions
Can I cross-reference 79041023044 with 2017-2022?
Yes. Both 79041023044 and 2017-2022 are interchangeable OEM numbers for this part. They refer to the same component with the same specifications, just different part number revisions.
How do I check if my engine code (FC250, FC350, FC450, FE350) matches?
The engine code is stamped on a metal tag attached to the engine block, usually near the timing belt cover or on the cylinder head. Compare the code you find with the list above. Engine codes are 3 to 6 characters long.
My vehicle is a 2017 model – is it covered?
The compatibility range for this part includes 2017-2022. The 2017 model year falls within this range, but verify the engine code and body type match. Mid-year production changes sometimes mean two vehicles from the same model year use different parts.
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