{"product_id":"caterpillar-121-0145-o-ring-seal-28-17mm-id-genuine-cat-replacement","title":"Caterpillar 121-0145 O-Ring Seal – 28.17mm ID – Genuine Cat Replacement","description":"\u003cp dir=\"auto\" class=\"PDq2pG_selectionAnchorContainer\"\u003eThe \u003cstrong\u003eCaterpillar 121-0145 O-Ring Seal\u003c\/strong\u003e is a heavy-duty sealing component designed for use in Caterpillar engines and equipment. This O-ring provides reliable sealing in static and selected dynamic applications, helping prevent fluid leakage and contamination.\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eManufactured to Caterpillar specifications, the 121-0145 features a \u003cstrong\u003e28.17 mm (1.109\") inside diameter\u003c\/strong\u003e and \u003cstrong\u003e0.139\" cross-section diameter\u003c\/strong\u003e. The seal material is HNBR and is designed to provide resistance to wear, extrusion, petroleum oils, diesel fuels, coolants, ozone, and other fluids commonly encountered in heavy-duty equipment. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e 121-0145 \/ 1210145\u003cbr\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e Caterpillar\u003cbr\u003e\u003cstrong\u003ePart Type:\u003c\/strong\u003e O-Ring \/ Seal\u003cbr\u003e\u003cstrong\u003eInside Diameter:\u003c\/strong\u003e 28.17 mm (1.109\")\u003cbr\u003e\u003cstrong\u003eCross Section:\u003c\/strong\u003e 3.53 mm (0.139\")\u003cbr\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e HNBR\u003cbr\u003e\u003cstrong\u003eHardness:\u003c\/strong\u003e 78A\u003cbr\u003e\u003cstrong\u003eDash Size:\u003c\/strong\u003e 216 \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003eApplications\u003c\/h3\u003e\n\u003cp dir=\"auto\"\u003eCaterpillar lists the 121-0145 for a wide range of equipment and engines, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCaterpillar 3406B, 3406C, 3406E\u003c\/li\u003e\n\u003cli\u003eCaterpillar C-15 \/ C15\u003c\/li\u003e\n\u003cli\u003eCaterpillar C-16\u003c\/li\u003e\n\u003cli\u003eCaterpillar C-18\u003c\/li\u003e\n\u003cli\u003eCaterpillar C-9\u003c\/li\u003e\n\u003cli\u003eCaterpillar 3306B\u003c\/li\u003e\n\u003cli\u003eCaterpillar 330B excavators\u003c\/li\u003e\n\u003cli\u003eCaterpillar 966, 972, 980 and 988 wheel loaders\u003c\/li\u003e\n\u003cli\u003eCaterpillar 770 and 770G trucks\u003c\/li\u003e\n\u003cli\u003eCaterpillar 740\/740B articulated trucks\u003c\/li\u003e\n\u003cli\u003eCaterpillar 824, 825 and 826 equipment\u003c\/li\u003e\n\u003cli\u003eCaterpillar D6, D7, D8, D9 and D10 track-type tractors\u003c\/li\u003e\n\u003cli\u003eNumerous other Cat construction, mining, industrial and engine applications \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eAlways verify the part number and equipment configuration before ordering.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003eCross-Reference \/ Interchange\u003c\/h3\u003e\n\u003cp dir=\"auto\"\u003eKnown aftermarket references include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eInterstate-McBee M-1210145\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePAI 131360\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Caterpillar","offers":[{"title":"Default Title","offer_id":50546992185586,"sku":null,"price":7.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0799\/7888\/9458\/files\/P001161-front-1-scaled.webp?v=1790254704","url":"https:\/\/hawheetruckrepair.com\/products\/caterpillar-121-0145-o-ring-seal-28-17mm-id-genuine-cat-replacement","provider":"Hawhee Truck Repair","version":"1.0","type":"link"}