Differences between '18 450 sxf vs '15 Husq FC450 engine compatibility?

DirtBikeKid46
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DirtBikeKid46

I purchased a 2018 KTM 450sxf engine to put into my 2015 Husqvarna FC450 and looking for fitment concerns between the two. 

I'm waiting for hardware to show up, but it's resting in the frame and looks to fit but I noticed the rad hoses are different and the cylinder head sensor seems shaped different because the sensor connector doesn't slide on correctly. 

 🤞🏻 I'm hoping it'll work.

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mustard530
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mustard530 2/22/2025 9:12pm
2/22/2025 9:12pm

I’m pretty sure those are two different generations of motors/ chassis. It might take some effort/ fabrication to get it to work 

DirtBikeKid46
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DirtBikeKid46 2/22/2025 10:40pm
2/22/2025 10:40pm
mustard530 wrote:

I’m pretty sure those are two different generations of motors/ chassis. It might take some effort/ fabrication to get it to work 

 It seems you're correct. I started cross referencing the cases, head, brackets etc and they're all different. Thanks for the comment.

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