The video linked above from Jays Garage, they say they are 37" Toyo Tires. A quick google search pulled up 37x13.5 r17 M/T costing about $300-400 Depending on the website.
​
Link 1 $391
Link 2 (Amazon) $303
Get this to remove the adhesive from your doors
ABN Rubber Eraser Wheel 4in Pad & Adapter 1-Pack – Pinstripe, Adhesive Remover, Vinyl Decal, Graphics Removal Tool https://www.amazon.com/dp/B018WG2XYE/ref=cm_sw_r_cp_api_glt_fabc_YNVB1C5QK1JRY05CYPNP?_encoding=UTF8&psc=1
For anyone wondering: this is the InStep Fire Truck pedal car available anywhere for $130 or less - the bell, rear handles, and removable ladders were removed, and it painted pink (very very well)- the white and chrome is exactly how ours came a few months ago.
I HIGHLY recommend this for kids, they love it!