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Plug. Expansion. Location-Cylinder Head. Location-Engine Block. 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 Core. Engine Freeze. Engine Welch. Engine Expansion Plug
F250 Super Duty; 31MM. F350 Super Duty; 31MM. F450 Super Duty; 31MM. F550 Super Duty; 31MM.
North Park Lincoln
9207 San Pedro Ave, San Antonio, TX, 78216
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