Exhaust heater sensor

[Ranchman]

Error message said #4 sensor needs changed. Read reviews that say very easy to snap bolt. Looks very easy to do but do not wanna snap the bolt. Also saw people were using a torch and trying out that way. Looking to see if anybody has hands on with this job. Hate to pay dealer 300 bucks for a 70 dollar part . Any feedback would be appreciated. Thanks. 2012 f350 lariat.

 

[01yellerCobra]

I don't have any experience. But what I've done in the past for known stubborn bolts is start spraying it a few days prior with penetrating oil. Gives it time to work. Then maybe some heat if it still feels stubborn.