{"product_id":"autoplumb-16an-20an-water-neck-adapters","title":"-16AN \u0026 -20AN Water Neck Adapters","description":"\u003cp\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003cspan\u003eNo Welding - No Clamps required. Easily go from one water-neck size to another without the need of reducers, splices or clamps while maintaining the same hose size. Perfect for LS swaps when the pump is one size and the radiator is another. Our adapters can be installed on any water-neck (Radiator, Water Pump, Thermostat Housing, etc. ) We guarantee our adapters to be leak proof and are warranted against mechanical failure. Our Adapters are both removable and reusable. \u003c\/span\u003e\u003cstrong\u003ePatented\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eYES\u003c\/strong\u003e they will work on plastic.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTo aid in determining the correct parts for your application and help ensure ordering the correct parts, use the -20an Templates found under Mock-up Templates at the top of this page.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003cstrong\u003eStep 6\u003c\/strong\u003e:\u003cstrong\u003e Placing your Order\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff2a00;\"\u003e\u003cstrong\u003eIMPORTANT: \u003c\/strong\u003e\u003c\/span\u003eAccurately measure the water necks OD ( \u003cstrong\u003eNot the Bead \u003c\/strong\u003e) for each water neck to be adapted. Use calipers or micrometer for the measurement. Water-neck OD Tolerance  -010\"  +.015\"\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e If the size you need is not listed?\u003c\/span\u003e\u003cspan\u003e  \u003cstrong\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003ePLEASE NOTE\u003c\/span\u003e\u003c\/strong\u003e A radiator water neck can be reduced in size up to approximately .040\". Most water pumps .050\" or more. Be your own judge on the method and how much you can safely reduce the OD. A file and emery cloth works well. Reduce it behind the bead between the bead and radiator\/pump. Also Adapters can be installed on Water Necks that are up to .015\" under size\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOrder from the menu above. Select size and color. Choose Color. Add quantity of each in cart.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003c\/strong\u003e For ease in Adapter and Hose assembly we recommend our\u003ca href=\"https:\/\/autoplumb.com\/products\/an-combination-wrench\"\u003e \u003cstrong\u003e-20AN Wrenches\u003c\/strong\u003e \u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eClick Here to:\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #cc0000;\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/autoplumb.com\/collections\/thermostat-housings\"\u003eContinue Ordering Components \u003c\/a\u003e\u003c\/strong\u003e\u003cspan style=\"color: #000000;\"\u003eThermostat Housings\u003c\/span\u003e\u003c\/span\u003e \u003c\/p\u003e","brand":"Autoplump","offers":[{"title":"-16AN \/ OD 1.250\" - 1.274\" \/ Black","offer_id":52799666651349,"sku":"AP1250-16BLK","price":69.95,"currency_code":"USD","in_stock":true},{"title":"-16AN \/ OD 1.250\" - 1.274\" \/ Silver","offer_id":52799666684117,"sku":"AP1250-16S","price":69.95,"currency_code":"USD","in_stock":true},{"title":"-16AN \/ OD 1.275\" - 1.299\" \/ Black","offer_id":52799666716885,"sku":"AP1250(OS)-16BLK","price":69.95,"currency_code":"USD","in_stock":true},{"title":"-16AN \/ OD 1.275\" - 1.299\" \/ Silver","offer_id":52799666749653,"sku":"AP1250(OS)-16S","price":69.95,"currency_code":"USD","in_stock":true},{"title":"-16AN \/ OD 1.300\" - 1.324\" \/ Black","offer_id":52799666782421,"sku":"AP1300-16BLK","price":69.95,"currency_code":"USD","in_stock":true},{"title":"-16AN \/ OD 1.300\" - 1.324\" \/ Silver","offer_id":52799666815189,"sku":"AP1300-16S","price":69.95,"currency_code":"USD","in_stock":true},{"title":"-16AN \/ OD 1.325\" - 1.350\" \/ Black","offer_id":52799666847957,"sku":"AP1300(OS)-16BLK","price":69.95,"currency_code":"USD","in_stock":true},{"title":"-16AN \/ OD 1.325\" - 1.350\" \/ Silver","offer_id":52799666880725,"sku":"AP1300(OS)-16S","price":69.95,"currency_code":"USD","in_stock":true},{"title":"-16AN \/ OD 1.350\" - 1.374\" \/ Black","offer_id":52799666913493,"sku":"AP1350-16BLK","price":69.95,"currency_code":"USD","in_stock":true},{"title":"-16AN \/ OD 1.350\" - 1.374\" \/ Silver","offer_id":52799666946261,"sku":"AP1350-16S","price":69.95,"currency_code":"USD","in_stock":true},{"title":"-16AN \/ OD 1.375\" - 1.400\" \/ Black","offer_id":52799666979029,"sku":"AP1350(OS)-16BLK","price":69.95,"currency_code":"USD","in_stock":true},{"title":"-16AN \/ OD 1.375\" - 1.400\" \/ Silver","offer_id":52799667011797,"sku":"AP1350(OS)-16S","price":69.95,"currency_code":"USD","in_stock":true},{"title":"-16AN \/ OD 1.500\" - 1.524\" \/ Black","offer_id":52799667044565,"sku":"AP1500-16BLK","price":69.95,"currency_code":"USD","in_stock":true},{"title":"-16AN \/ OD 1.500\" - 1.524\" \/ Silver","offer_id":52799667077333,"sku":"AP1500-16S","price":69.95,"currency_code":"USD","in_stock":true},{"title":"-16AN \/ OD 1.525\" - 1.550\" \/ Black","offer_id":52799667110101,"sku":"AP1500(OS)-16BLK","price":69.95,"currency_code":"USD","in_stock":true},{"title":"-16AN \/ OD 1.525\" - 1.550\" \/ Silver","offer_id":52799667142869,"sku":"AP1500(OS)-16S","price":69.95,"currency_code":"USD","in_stock":true},{"title":"-16AN \/ OD 1.600\" - 1.624\" \/ Black","offer_id":52799667175637,"sku":"AP1600-16BLK","price":69.95,"currency_code":"USD","in_stock":true},{"title":"-16AN \/ OD 1.600\" - 1.624\" \/ Silver","offer_id":52799667208405,"sku":"AP1600-16S","price":69.95,"currency_code":"USD","in_stock":true},{"title":"-16AN \/ OD 1.625\" - 1.650\" \/ Black","offer_id":52799667241173,"sku":"AP1600(OS)-16BLK","price":69.95,"currency_code":"USD","in_stock":true},{"title":"-16AN \/ OD 1.625\" - 1.650\" \/ Silver","offer_id":52799667273941,"sku":"AP1600(OS)-16S","price":69.95,"currency_code":"USD","in_stock":true},{"title":"-16AN \/ OD 1.750\" - 1.774\" \/ Black","offer_id":52799667306709,"sku":"AP1750-16BLK","price":69.95,"currency_code":"USD","in_stock":true},{"title":"-16AN \/ OD 1.750\" - 1.774\" \/ Silver","offer_id":52799667339477,"sku":"AP1750-16S","price":69.95,"currency_code":"USD","in_stock":true},{"title":"-16AN \/ OD 1.775\" - 1.800\" \/ Black","offer_id":52799667372245,"sku":"AP1750(OS)-16BLK","price":69.95,"currency_code":"USD","in_stock":true},{"title":"-16AN \/ OD 1.775\" - 1.800\" \/ Silver","offer_id":52799667405013,"sku":"AP1750(OS)-16S","price":69.95,"currency_code":"USD","in_stock":true},{"title":"-20AN \/ OD 1.250\" - 1.274\" \/ Black","offer_id":52939974901973,"sku":"AP1250-20BLK","price":69.95,"currency_code":"USD","in_stock":true},{"title":"-20AN \/ OD 1.250\" - 1.274\" \/ Silver","offer_id":52939974934741,"sku":"AP1250-20S","price":69.95,"currency_code":"USD","in_stock":true},{"title":"-20AN \/ OD 1.275\" - 1.299\" \/ Black","offer_id":52939974967509,"sku":"AP1250(OS)-20BLK","price":69.95,"currency_code":"USD","in_stock":true},{"title":"-20AN \/ OD 1.275\" - 1.299\" \/ Silver","offer_id":52939975000277,"sku":"AP1250(OS)-20S","price":69.95,"currency_code":"USD","in_stock":true},{"title":"-20AN \/ OD 1.300\" - 1.324\" \/ Black","offer_id":52939975033045,"sku":"AP1300-20BLK","price":69.95,"currency_code":"USD","in_stock":true},{"title":"-20AN \/ OD 1.300\" - 1.324\" \/ Silver","offer_id":52939975065813,"sku":"AP1300-20S","price":69.95,"currency_code":"USD","in_stock":true},{"title":"-20AN \/ OD 1.325\" - 1.350\" \/ Black","offer_id":52939975098581,"sku":"AP1300(OS)-20BLK","price":69.95,"currency_code":"USD","in_stock":true},{"title":"-20AN \/ OD 1.325\" - 1.350\" \/ Silver","offer_id":52939975131349,"sku":"AP1300(OS)-20S","price":69.95,"currency_code":"USD","in_stock":true},{"title":"-20AN \/ OD 1.350\" - 1.374\" \/ Black","offer_id":52939975164117,"sku":"AP1350-20BLK","price":69.95,"currency_code":"USD","in_stock":true},{"title":"-20AN \/ OD 1.350\" - 1.374\" \/ Silver","offer_id":52939975196885,"sku":"AP1350-20S","price":69.95,"currency_code":"USD","in_stock":true},{"title":"-20AN \/ OD 1.375\" - 1.400\" \/ Black","offer_id":52939975229653,"sku":"AP1350(OS)-20BLK","price":69.95,"currency_code":"USD","in_stock":true},{"title":"-20AN \/ OD 1.375\" - 1.400\" \/ Silver","offer_id":52939975262421,"sku":"AP1350(OS)-20S","price":69.95,"currency_code":"USD","in_stock":true},{"title":"-20AN \/ OD 1.500\" - 1.524\" \/ Black","offer_id":52939975295189,"sku":"AP1500-20BLK","price":69.95,"currency_code":"USD","in_stock":true},{"title":"-20AN \/ OD 1.500\" - 1.524\" \/ Silver","offer_id":52939975327957,"sku":"AP1500-20S","price":69.95,"currency_code":"USD","in_stock":true},{"title":"-20AN \/ OD 1.525\" - 1.550\" \/ Black","offer_id":52939975360725,"sku":"AP1500(OS)-20BLK","price":69.95,"currency_code":"USD","in_stock":true},{"title":"-20AN \/ OD 1.525\" - 1.550\" \/ Silver","offer_id":52939975393493,"sku":"AP1500(OS)-20S","price":69.95,"currency_code":"USD","in_stock":true},{"title":"-20AN \/ OD 1.600\" - 1.624\" \/ Black","offer_id":52939975426261,"sku":"AP1600-20BLK","price":69.95,"currency_code":"USD","in_stock":true},{"title":"-20AN \/ OD 1.600\" - 1.624\" \/ Silver","offer_id":52939975459029,"sku":"AP1600-20S","price":69.95,"currency_code":"USD","in_stock":true},{"title":"-20AN \/ OD 1.625\" - 1.650\" \/ Black","offer_id":52939975491797,"sku":"AP1600(OS)-20BLK","price":69.95,"currency_code":"USD","in_stock":true},{"title":"-20AN \/ OD 1.625\" - 1.650\" \/ Silver","offer_id":52939975524565,"sku":"AP1600(OS)-20S","price":69.95,"currency_code":"USD","in_stock":true},{"title":"-20AN \/ OD 1.750\" - 1.774\" \/ Black","offer_id":52939975557333,"sku":"AP1750-20BLK","price":69.95,"currency_code":"USD","in_stock":true},{"title":"-20AN \/ OD 1.750\" - 1.774\" \/ Silver","offer_id":52939975590101,"sku":"AP1750-20S","price":69.95,"currency_code":"USD","in_stock":true},{"title":"-20AN \/ OD 1.775\" - 1.800\" \/ Black","offer_id":52939975622869,"sku":"AP1750(OS)-20BLK","price":69.95,"currency_code":"USD","in_stock":true},{"title":"-20AN \/ OD 1.775\" - 1.800\" \/ Silver","offer_id":52939975655637,"sku":"AP1750(OS)-20S","price":69.95,"currency_code":"USD","in_stock":true},{"title":"-20AN \/ OD 1.990\" - 2.015\" \/ Black","offer_id":52939975688405,"sku":"AP1990-20BLK","price":69.95,"currency_code":"USD","in_stock":true},{"title":"-20AN \/ OD 1.990\" - 2.015\" \/ Silver","offer_id":52939975721173,"sku":"AP1990-20S","price":69.95,"currency_code":"USD","in_stock":true},{"title":"-20AN \/ OD  2.015\" - 2.040\" \/ Black","offer_id":52939975753941,"sku":"AP1990(OS)-20BLK","price":69.95,"currency_code":"USD","in_stock":true},{"title":"-20AN \/ OD  2.015\" - 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