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Plug. Engine Core. Engine Expansion. Engine Freeze. Engine Welch. Location-Front of Engine Block Oil Hole. Plug that prevents the Engine Block or cylinder head from cracking in case of Freezing coolant. Also used to Plug the casting Holes from production. Engine Expansion Plug
OEC GM Retail Demo Site
4205 Highlander Pkwy, Richfield, OH, 44286
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