New aluminum radiator for the Opel GT. Recommended for Summer driving and for performance-built Opel GTs. Installs in original location, and outperforms original-style radiators. Works with original mounts, and adds a convenient drain plug! (Note: Designed for manual transmission Opel GT's -- Automatic transmission GT owners see our part #11023AT). Requires a 70% coolant/distilled water mix for operation.