The Blueprint ADG09928 radiator cap is designed for the coolant expansion tank in various vehicle models such as Vauxhall Corsa, Astra, Insignia, and Chevrolet Cruze. Made with OE matching quality, it provides a secure seal to prevent coolant loss.

Secure the coolant system with the Blue Print ADG09927 radiator cap, engineered to maintain precise pressure in expansion tanks. Its tight seal and corrosion‑resistant alloy keep coolant from leaking or boiling over, ensuring reliable engine cooling for Proton Savvy models 2005‑2012. The durable metal construction offers long‑lasting performance while simplifying maintenance.