Both mine fit fine. You must remove the alligator clip, push the probe through and then put the alligator clip back on. The 45 degree bent meat probe will also fit.
Micro stickburner Yoder YS1500, Stumps Stretch, Primo Oval XL, 14" Original 1880 WSM, gasser and Ridiculously Fast Red Thermapen. Past cookers: FEC100, FEC120, Klose stick burner, 22.5 WSM, Traeger BBQ125, Traeger Lil Tex, Rec-Tec pellet smoker.