Threaded Radiator Inlet/Outlet hose fitting 1.75" for Frostbite LS-Swap Radiators: GM Performance Motor
1-1/2" to 1-3/4" Hose w/ 1/8" NPT Steam Port Adapter Top Radiator LS Swap Coolant | AN627-27X125 - ICT Billet
Radiator Hose to Male AN Adapter - 1.25 to -16 AN
Magna Cool Flex Radiator Hose Kit Stainless + Chrome 12 in Long 1.25 1.5 1.75 | eBay
Straight Aluminum Hose Connector, 3 Inch Length – DeWitts™ Direct Fit® Aluminum Radiators
Hose-Reducers/Adapters Hose Reducer 1.5 To 1.25 | Radiator Express
Amazon.com: Universal Aluminum Radiator Hose Connector | 90 Degree Elbow | 1.75 OD Inlet/Outlet | One Per Package | Made In USA | 3.75” Leg Length : Automotive
Amazon.com: ICT Billet Straight 1.5" or 1.25" Single Barb Radiator Hose Plug Bare Aluminum Cooling Engine Removal Spill Free Designed & Manufactured in USA Bare Aluminum F150-125BAPL : Automotive