Bung and Cap Kit - 1.375 in OD - Bolt-On - Aluminum Bung - Aluminum Threaded Cap - Silver Anodized - Kit Brand Allstar Performance Cap and bung have 1-1/2-12 thread. Replacement Parts ALL99372 Bolt-in Bung ALL99360 Cap ALL99355 Cap O-ring ALL36180 Truck Freight- NO State Restriction-
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