Product review (4 stars): which is great except for it being set for natural gas
I recently became the proud owner of a Frymaster GF40SD fifty pound fryer, which is great except for it being set for natural gas.  This kit did the trick, although it should be noted that the pilot conversion is for the newer models, and not the one that came into my possession.  Swapping out the ports took some patience and digit dexterity, but was accomplished in about a half hour.

The newer unit come with a Honeywell Gas Valve, for which the included pilot conversion is designed for use.  My unit is older, and has a Robertshaw Gas Valve, which is incompatible with the pilot conversion.

The kit is a bit pricey, but definitely worth it when you are working with large quantities of flammable fuel and oil.