{"product_id":"k21-303-00-fortress-threaded-oil-cap-5-2k-8k-axles-dexter-rockwell-lippert-dxt","title":"K21-303-00 - Fortress Threaded Oil Cap – 5.2K–8K Axles – Fits Dexter \u0026 Rockwell | DXT","description":"\u003cp\u003eThe Fortress threaded oil cap is a heavy-duty replacement solution for 5,200-lb to 8,000-lb trailer axles. Designed to fit Dexter, Rockwell, and Lippert axles, this cap replaces the oil cap, O-ring, and plug in one complete kit. Its rugged aluminum construction and protective features help extend bearing life while making service easier.\u003c\/p\u003e\n\u003ch5\u003eDetailed Information:\u003c\/h5\u003e\n\u003ctable style=\"width: 100%; border: 1px solid #ddd; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\"\u003eAxle Capacity\u003c\/th\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e5,200 – 8,000 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\"\u003eCap Type\u003c\/th\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eThreaded Oil \/ Grease Cap\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\"\u003eMaterial\u003c\/th\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eCast Aluminum with Black Coating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\"\u003eViewing Window\u003c\/th\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eClear Lens with Red Retainer Ring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\"\u003eLubrication Type\u003c\/th\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eOil or Grease Compatible\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch5\u003eFitting:\u003c\/h5\u003e\n\u003cp\u003eFits 5.2K–8K trailer axles from Dexter, Rockwell, and Lippert. Direct replacement for the following part numbers:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDexter: K71-038-00, 021-035-00, K21-297-00\u003c\/li\u003e\n\u003cli\u003eRockwell: 8001\u003c\/li\u003e\n\u003cli\u003eLippert: 695814\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eFeatures:\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Replacement Kit:\u003c\/strong\u003e Includes threaded cap, watertight O-ring seal, and fill\/drain plug.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThreaded Design:\u003c\/strong\u003e Installs securely and resists loosening during operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRed Retainer Ring:\u003c\/strong\u003e Protects the clear viewing lens from impact and damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy Service Access:\u003c\/strong\u003e Large side plug allows quick filling or draining of oil.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e Cast aluminum body with black coating protects against corrosion.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile Use:\u003c\/strong\u003e Functions as either an oil bath cap or grease cap.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eProduct Overview:\u003c\/h5\u003e\n\u003cp\u003eThe Fortress threaded oil cap is built for durability, protection, and convenience. Designed for demanding trailer applications, it helps maintain proper lubrication, protects bearings from contamination, and simplifies routine maintenance. Ideal for replacing worn or damaged caps on Dexter, Rockwell, and Lippert axles in the 5.2K–8K range.\u003c\/p\u003e","brand":"DEXTER","offers":[{"title":"Default Title","offer_id":44907670405328,"sku":"8AL-GO-CPDXR","price":40.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/0353\/6080\/files\/k21-303-00-fortress-threaded-oil-cap-52k-8k-axles-fits-dexter-rockwell-dxt-2507568.png?v=1794050847","url":"https:\/\/haulktrailerparts.com\/products\/k21-303-00-fortress-threaded-oil-cap-5-2k-8k-axles-dexter-rockwell-lippert-dxt","provider":"HAULK DEPOT®","version":"1.0","type":"link"}