K-Tuned K24 Upper Coolant Housing w/ Filler Neck - Includes Hose End - KUW-24C-F04Supercedes KUW 24C F02 Applications: K20Z3 K24 heads Features: Hose End 1. 25 Note: 16an fitting available as add on Will NOT work with K24Z and K24Y Series Engines Will NOT work with K24A1 May Have fitment issues with turbos depending on size of turbo and manifold Rad cap is not included There is fitment issues with the K20 Upper Coolant Housing and Jackson Racing Supercharger Here is the K Tuned Upper Coolant Housing. With applications for both K20