TM Tractor Parts
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(parts not for sale)
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Cylinder head bolts
"New"
long head bolt is IH part #251231R1 (new# 326-652)
bolt measures 3 1/4 inch long with 1 inch of thread
(bolt length does not include the head)
thread is 3/8-16

short head bolt is IH part #251230R1
bolt measures 2 3/8 inch long with 1 inch of thread
(bolt length does not include the head)
thread is 3/8-16