Compressor Stay is 88431and nut is 90179-08037 in Lexus exploded parts diagram. The ground starpa mounting bolt is not depicted...and was unable to locate a soecific part number in the Lexus system.....perh as os a member has a suggestion (The bolt I used was the engine-to- frame ground steao bolt...the clamping washer is smaller however) Anyone with a P.N.?