I tighten and replace engine mounting bolts for customers several times each year. They never seem to realize the engine is loose.Thanks for the reply.
I found a part number and sourced them on a web site recommended on this site,
HUSTLER 119539 - ENGINE BOLT KIT 4 bolts washers with locktite on the threads.
I will have to disconnect the engine drive belt tensioner for one of them the other 3 look accessible.
Sir I have been trying to find the specs of those bolts for days.Thank you now to find someone here that carrys them.Boy that is a heck of a price for four 3/8-16 x 1.25 Flange head bolts and three washers.
Here I use 3/8-16 x 1.25 Grade 8 Serrated Flange head bolts. and torque to 46 ft-lbs. Add blue Loctite if you are worried about bolts coming loose again. And I sell them to my customers for under $1.50 each and not $51 for four and three washers. What a rip off.
True and I have done it a few JD ZTRs.Many times when an engine has been loose the bolt holes in the aluminum gets wallowed out a bit just tightening with locktite won't keep them tight. Some engines have enough material I can just drill and tap to the next size. Some I put in inserts and use locktite. If your engine comes loose with the new bolts might want to have a plan B