This auction is for a NOS curved radiator inlet hose in perfect condition. GM part # 3733457 ( upper ) stamped GM AV - 3733457. Clean and pliable with NO flaws of any kind. This is a " General Motors " factory original " Made In The USA " quality hose >> NOT a cheap reproduction. I purchased a large inventory of new GM parts from a closed dealership and have keep them in dry storage for many years. Will fit 1956 1957 Chevrolet Pickup Truck Series 6 ( 3100 1/2 Ton ) w/ 6 cylinder engines. Combined shipping discounts apply on multiple purchases whenever possible. I have been selling on eBay for over 23 years and have a 100% positive feedback rating, so buy with confidence. Questions are always welcome, so don't hesitate to ask. Please be sure to check out my eBay store for more Vintage & Classic parts, accessories and literature. I will be listing a variety of NOS, NORS and quality used parts every week, so check back often!