Lot Of 6 BlueDevil Products 00234 Rear Main Sealer - 8 Ounce Each New/Sealed BlueDevil Rear Main Sealer (Part #00234, 8 oz) is a pour-in additive designed to permanently stop leaks in your engine's rear main seal and timing cover. It works by restoring, shrinking, and reconditioning aged or cracked rubber seals without clogging the system.
