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The Moroso GM LS valve cover breather kit includes a 12AN male fitting and is intended for LS valve covers with a double-tab oil fill hole. Combining the larger 12AN male connection with the double-tab fill configuration, this kit supports routed crankcase ventilation or aftermarket plumbing options where a robust AN-style fitting is required at the valve cover breather location.
Moroso GM LS Valve Cover Breather Kit -12An Male Fitting - Double Tab Oil Fill Hole
