SKU: ALL 99366
UPC: 848238066975
MPN: ALL99366
The ALLSTAR PERFORMANCE Black Cap Large (ALL99366) is a screw-in filler cap designed for cooling system applications in various automotive and motorsports equipment. This cap is essential for vehicles that require reliable radiator or overflow tank sealing, making it a valuable component for hot rod builders, race teams, and restoration shops.
Constructed from aluminum, the cap features a black anodized finish that enhances its durability and resistance to corrosion, particularly in high-heat engine compartments. This robust construction ensures excellent thermal stability and prevents degradation under sustained coolant temperatures, making it suitable for harsh environments.
Whether replacing a damaged cap on a classic engine rebuild or upgrading cooling hardware on a performance vehicle, the ALLSTAR PERFORMANCE filler cap provides the reliability and quality expected from a trusted manufacturer in high-performance motorsports.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.
