Thermostat bolts

jcerockwood

New Member
Joined
Nov 2, 2019
Messages
9
Location
Rockwood , tn
I am replacing the water pump on my 1998 tj 4 cylinder and have lost the lower bolt on the thermostat housing. What size and thread does it take? I've searched with a magnet and come up empty.
 
Last edited:
This is from the 97-99 parts list pdf. They are here and really come in handy:
https://wranglertjforum.com/threads...ce-manuals-fsm-technical-documentation.4618/\
Looks like the lower bolt will be .312-18x.970

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