{"product_id":"5m2998-retaining-ring","title":"5M2998 - Retaining Ring","description":"\u003ch3\u003eOne New Aftermarket Replacement Anti-Extrusion Ring for Caterpillar (Cat) Construction Equipment\u003c\/h3\u003e\u003cp\u003eThis aftermarket replacement 5M2998 anti-extrusion ring (also cataloged as a preformed packing ring) is a nylon plastic sealing component used in the idler assembly on Caterpillar (Cat) track-type equipment. The ring seats alongside O-ring seals to prevent seal extrusion under hydraulic or mechanical load, maintaining a leak-free assembly in demanding construction environments.\u003c\/p\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eInside Diameter: 84.6 mm (3.33 in)\u003c\/li\u003e\n\u003cli\u003eCross Section Height: 2 mm\u003c\/li\u003e\n\u003cli\u003eCross Section Width: 3.2 mm\u003c\/li\u003e\n\u003cli\u003eMaterial: Nylon Plastic\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatible Models\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eCaterpillar Bulldozers \/ Track-Type Tractors:\u003c\/strong\u003e D6C, D6D, D6E, D6E SR, D6G, D6G SR, D6G2 LGP, D6G2 XL, D7F, D7G, D7G2\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCaterpillar Pipelayers:\u003c\/strong\u003e 571G, 572G\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCaterpillar Track Loaders:\u003c\/strong\u003e 955K, 955L, 977D, 977H, 977K, 977L\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCaterpillar Excavators:\u003c\/strong\u003e 215, 215B, 225, 227, 229\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCaterpillar Compactors \/ Other:\u003c\/strong\u003e FB221\u003c\/p\u003e\u003ch4\u003eReplaces Part Number(s):\u003c\/h4\u003e\u003cp\u003e5M2998, 5M-2998\u003c\/p\u003e\u003cp\u003eNew aftermarket replacement part - not remanufactured, not used.\u003c\/p\u003e","brand":"Reliable Aftermarket Parts, Inc® -OD","offers":[{"title":"Default Title","offer_id":42093441843283,"sku":"5M2998","price":18.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0079\/4060\/3955\/files\/RAP_ComingSoon_Tractor_ba7b9c5f-fb86-4799-b511-923d21318dfb.jpg?v=1757942158","url":"https:\/\/www.reliableaftermarketparts.co.uk\/products\/5m2998-retaining-ring","provider":"Reliable Aftermarket Parts, Inc®","version":"1.0","type":"link"}