Aluminum Alloy Racing Radiator Sports Stop Leak For Lotus Europa Coupe S1 S2 TC 1.5L1.6L 1966-1976 Manual only Stronger &amp; Higher Capacity for Coolant Made of High Quality Full T-6061 Aluminum Construction Light Weight Direct Bolt-On OEM Fitment or Replacement Improves cooling by 35 - 45% temp Vehicle Tested. Perfect Drop-In Fit. 1 Year Manufacturer Warranty For Lotus Europa Coupe S1 S2 TC 1.5/1.6l 1966-1976 S1 Parts Manual: 46K001 - Drawing K1 S2 Parts Manual: 046K0001 - Drawing KA 1 TC Parts Manual: D074K0088Z - Drawing KA 1 100% Brand New Improves cooling by 35 - 45% temp. Stronger &amp; Higher Capacity for Coolant High performance JDM spec Light Weight Direct Bolt-On OEM Fitment or Replacement Made of High Quality Full T-6061 Aluminum Construction