{"product_id":"fits-caterpillar-621b-627b-955l-seal-kit-1304012","title":"Fits Caterpillar 621B 627B 955L Seal Kit 1304012","description":"\u003ch3\u003eOne New Aftermarket Replacement Hydraulic Cylinder Seal Kit Fits Caterpillar (Fits CAT) Scrapers, Off-Highway Trucks, and Crawler Loaders\u003c\/h3\u003e\u003cp\u003eThis hydraulic cylinder seal kit Fits Caterpillar (Fits CAT) OEM part number 1304012 and is used across multiple cylinder applications including scraper steering cylinders, scraper ejector cylinders, off-highway truck steering cylinders, and crawler loader tilt cylinders (both right-hand and left-hand). The kit includes wiper seals, U-cup seals, buffer seals, and piston seals -- everything needed to restore proper hydraulic function and prevent fluid leakage during a cylinder rebuild.\u003c\/p\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003cul\u003e  \u003cli\u003eRod Diameter: 2-1\/2 in.\u003c\/li\u003e  \u003cli\u003eBore Diameter: 5 in.\u003c\/li\u003e  \u003cli\u003eKit Contents: Wiper, U-cup, Buffer, and Piston seals\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatible Models\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eFits Caterpillar Scrapers (Steering Cylinder - Cyl # 3G5192):\u003c\/strong\u003e 621B, 621F, 621R, 621S, 621SC, 623B, 623SC, 623SCG, 627B, 627SC\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFits Caterpillar Scrapers (Ejector Cylinder - Cyl # 8J5478):\u003c\/strong\u003e 623, 623SC, 623SCG\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFits Caterpillar Off-Highway Trucks (Steering Cylinder - Cyl # 6E5857, 3G8081):\u003c\/strong\u003e 783B, 784B, 784C, 785, 785B, 785C\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFits Caterpillar Crawler Loaders (Tilt RH Cylinder - Cyl # 7J9637, 5J6213):\u003c\/strong\u003e 955, 955K, 955L\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFits Caterpillar Crawler Loaders (Tilt LH Cylinder - Cyl # 5J6214):\u003c\/strong\u003e 955K, 955L\u003c\/p\u003e\u003ch4\u003eReplaces Part Number(s):\u003c\/h4\u003e\u003cp\u003e1304012, 2430384\u003c\/p\u003e\u003ch4\u003eAftermarket Interchange Numbers\u003c\/h4\u003e\u003cp\u003eHYI40-0207, CTC-1304012\u003c\/p\u003e\u003cp\u003eNew aftermarket replacement part - not remanufactured, not used.\u003c\/p\u003e","brand":"AIC Replacement Parts","offers":[{"title":"Default Title","offer_id":43896358011060,"sku":"zbox_1119860","price":20.43,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0249\/8782\/8310\/files\/HYI40-0207_01_f6ae907e-51f3-4321-949e-ae5ca7e26e00.jpg?v=1744494903","url":"https:\/\/www.aicreplacementparts.com\/products\/fits-caterpillar-621b-627b-955l-seal-kit-1304012","provider":"AIC Replacement Parts","version":"1.0","type":"link"}