Maintain optimal engine cooling with this large 42 mm radiator cap engineered to withstand pressures up to 1.4 bar (21 psi), preventing coolant loss and overheating. Crafted by Aeroflow, its complete billet cover ensures durability and precise pressure regulation. Designed with exact dimensions (16 cm length, 14 cm width), it fits securely for reliable performance—explore how this cap enhances your cooling system's efficiency.

Maintain optimal engine temperature with this large 42 mm radiator cap that supports a precise pressure rating of 1.1 bar (16 psi). Its complete billet cover design ensures durability and reliable sealing, preventing coolant loss under high-pressure conditions. Engineered by Aeroflow, this lightweight cap (0.161 kg) offers a compact 16 cm by 14 cm footprint with a low profile height of 1.2 cm, making it an efficient upgrade for cooling systems.