{"product_id":"272-5438-modular-radiator-seal","title":"272-5438 Modular Radiator Seal For Caterpillar 621B | Ruijueparts","description":"\u003ch2 class=\"sec-head\"\u003eProduct Description\u003c\/h2\u003e\n\u003cdiv class=\"n6owBd awi2gc\"\u003e\n\u003cp\u003e\u003cspan\u003e272-5438 is an aftermarket replacement modular radiator seal for selected Caterpillar heavy-equipment cooling systems. This reference is a high-durometer EPDM rubber seal with a 216.8 mm length and 48 mm inside diameter, used between modular radiator sections to support a sealed cooling assembly. Buyers should verify the exact part number and seal length before purchase: 272-5438 is not interchangeable with the shorter 258-8600 \/ 272-5437 reference. Ruijueparts supports B2B part-number checks, mixed purchasing lists, and packaging discussions for cooling-system service parts.\u003c\/span\u003e\u003c\/p\u003e\n\u003cbr\u003e\u003c!--TgQPHd||[]--\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"Fsg96\"\u003e\u003c!--TgQPHd||[]--\u003e\u003c\/div\u003e\n\u003ch2 id=\"s0-2-1-25-5-20-1-101[1]-2-3-7[0]-4[0]-3[0]-11[1]-1-5-title\" class=\"section-title__title\"\u003e\u003cspan class=\"ux-layout-section-module-evo__title\"\u003e\u003cspan class=\"ux-textspans\"\u003eItem specifics\u003c\/span\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003ctable width=\"100%\" style=\"width: 100.088%; height: 403.344px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 22.6641px;\"\u003e\n\u003ctd style=\"width: 33.2575%; height: 22.6641px;\"\u003e\u003cstrong\u003e\u003cmeta charset=\"utf-8\"\u003ePart Number:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"et2\" height=\"17\" width=\"76\" style=\"height: 22.6641px; width: 66.5017%;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e272-5438, 2725438\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 18.5938px;\"\u003e\n\u003ctd style=\"width: 33.2575%; height: 18.5938px;\"\u003e\u003cstrong\u003e\u003cmeta charset=\"utf-8\"\u003eFits Models:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.5017%; height: 18.5938px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e621B, 621E, 621F, 621G, 623B, 623E, 623F, 623G, 627E, 627F, 627G, 631D, 631E, 631G, 633D, 637D, 637E, 637G, 657E, 657G\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 33.2575%; height: 19.5938px;\"\u003e\u003cstrong\u003e\u003cmeta charset=\"utf-8\"\u003eBrand:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.5017%; height: 19.5938px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cspan\u003eCaterpillar replacement\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 59.7734px;\"\u003e\n\u003ctd style=\"width: 33.2575%; height: 59.7734px;\"\u003e\u003cstrong\u003e\u003cmeta charset=\"utf-8\"\u003eType:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.5017%; height: 59.7734px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003eModular Radiator Seal \/ Cooling System Seal\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 263.125px;\"\u003e\n\u003ctd style=\"width: 33.2575%; height: 263.125px;\"\u003e\u003cstrong\u003e\u003cmeta charset=\"utf-8\"\u003e \u003cspan\u003eApplication:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.5017%; height: 263.125px;\"\u003e\n\u003cul\u003e\n\u003cli\u003eCooling System Repair | Used in selected next-generation modular radiator assemblies to seal radiator sections and support coolant-leak repair work. Maintenance teams should inspect the radiator core arrangement, measure the removed seal, and confirm machine serial information before installation.\u003c\/li\u003e\n\u003cli\u003eWheel Tractor Scrapers: 621B, 621E, 621F, 621G, 623B, 623E, 623F, 623G, 627E, 627F, 627G, 631D, 631E, 631G, 633D, 637D, 637E, 637G, 657E, 657G\u003c\/li\u003e\n\u003cli\u003eOff-Highway Trucks: 770, 772, 773F, 773G, 775F, 775G, 777D, 777G, 793D, 793F\u003c\/li\u003e\n\u003cli\u003eWheel Loader: 980H\u003c\/li\u003e\n\u003cli\u003eMotor Grader: 24M\u003c\/li\u003e\n\u003cli\u003eOther Listed Application: D10R\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 33.2575%; height: 19.5938px;\"\u003e\u003cstrong\u003e\u003cmeta charset=\"utf-8\"\u003eSize:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.5017%; height: 19.5938px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e \u003cspan\u003eStandard Size\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cspan\u003e\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eFAQ\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eQ1: Is 272-5438 interchangeable with 258-8600?\u003c\/strong\u003e\u003cbr\u003e\u003cb\u003eA: \u003c\/b\u003eNo. 272-5438 is 216.8 mm long, while 258-8600 cross-references to the shorter 272-5437 seal. Confirm the removed seal length and radiator parts diagram before ordering.\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eQ2: Is 272-5438 a hydraulic seal?\u003cbr\u003e\u003c\/strong\u003e\u003cb\u003eA: \u003c\/b\u003eNo. It is a cooling-system component for modular radiator assemblies, not a hydraulic cylinder, pump, or motor seal.\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eQ3: What information is needed to verify fitment?\u003cbr\u003eA:\u003c\/strong\u003e Provide the machine model, serial number, radiator arrangement, old part number and a measurement or photo of the removed seal. This is especially important when several seals have a similar profile.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RuiJueParts","offers":[{"title":"Default Title","offer_id":52565842624743,"sku":"272-5438","price":4.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5251\/9399\/files\/2725438.jpg?v=1788491851","url":"https:\/\/www.ruijueparts.com\/products\/272-5438-modular-radiator-seal","provider":"RuiJueParts","version":"1.0","type":"link"}