This 16 lb. radiator cap features Billet Specialties’ unique notch grip design, combining function and style in a compact package. The outer cover is CNC machined from 6061-T6 billet aluminum and polished to a brilliant shine, providing a sleek upgrade over standard stamped steel caps. The integrated notched grip ensures positive engagement for easy installation and removal, even with gloves.

Internally, the cap uses a high-quality Stant pressure mechanism rated at 16 PSI, ideal for high-performance or custom cooling systems requiring higher boiling protection. It fits most standard domestic radiator necks.

• 16 lb. pressure rating
• CNC machined 6061-T6 billet aluminum cover
• Notch grip design for easy handling
• Brilliant polished finish
• High-quality Stant internal cap
• Fits most standard U.S.-made radiator necks