GM Oil Dipstick Block Plug for LS Engines. Also known as an Engine Expansion Plug. Formerly Part# 12557520.
.39" o.d. 9.90mm
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Oil plug
Plugs hole in block for stock dipstick tube.
GM Oil Dipstick Block Plug for LS Engines. Also known as an Engine Expansion Plug. Formerly Part# 12557520.
.39" o.d. 9.90mm
Plugs hole in block for stock dipstick tube.