{"product_id":"assault-industries-polaris-rzr-pro-xp-phoenix-axles","title":"Assault Industries Polaris RZR Pro XP Phoenix Axles (2020+)","description":"\u003cp\u003e\u003cstrong\u003eAssault Industries MAS-223 Phoenix Axles are stock-length front and rear replacement axles for the 2020+ Polaris RZR Pro XP and Pro XP 4.\u003c\/strong\u003e They pair heat-treated 4340 chromoly shafts, larger than stock, with Assault's proprietary high-temp grease, which showed no breakdown at 586.4°F in lab testing.\u003c\/p\u003e\n\u003cp\u003eChoose Front or Rear. Each axle is sold individually.\u003c\/p\u003e\n\u003cp\u003eThese RZR Pro XP axles are for owners who push the Pro XP hard. Pro XP axles here come as a Pro XP front axle or RZR Pro XP rear axle, and the same parts serve as RZR Pro XP 4 axles. Shoppers comparing Polaris Pro XP axles or Polaris RZR Pro XP axles can order one RZR Pro XP axle or both. These are the Phoenix axles RZR Pro XP riders choose for heat, the Assault Industries Phoenix axle for the Pro XP.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eProprietary high-temp grease blend, virtually waterproof\u003c\/li\u003e\n\u003cli\u003eGrease resists temperatures above 586.4°F (308°C)\u003c\/li\u003e\n\u003cli\u003eReduced friction prevents heat buildup\u003c\/li\u003e\n\u003cli\u003eHigh pressure tolerance for extreme rides\u003c\/li\u003e\n\u003cli\u003eHeat-treated 4340 chromoly shafts, larger than stock\u003c\/li\u003e\n\u003cli\u003eOperates at high CV angles\u003c\/li\u003e\n\u003cli\u003eField and lab tested; 3-year warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eBuilt To Solve: Overheated CVs on a Polaris RZR Pro XP\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCV joints failing when stock grease overheats\u003c\/li\u003e\n\u003cli\u003eBoot and CV failures after long, fast pulls\u003c\/li\u003e\n\u003cli\u003eStock shafts bending on rocks and logs\u003c\/li\u003e\n\u003cli\u003eReplacing a broken axle with another stock part\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eBest For: 2020+ Polaris RZR Pro XP and Pro XP 4 Owners\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e2020+ RZR Pro XP owners\u003c\/li\u003e\n\u003cli\u003e2020+ RZR Pro XP 4 owners\u003c\/li\u003e\n\u003cli\u003eDune and desert riders who run at speed\u003c\/li\u003e\n\u003cli\u003eOwners replacing a front or rear axle\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBrand: Assault Industries\u003c\/li\u003e\n\u003cli\u003eProduct line: MAS-223 Phoenix Axle\u003c\/li\u003e\n\u003cli\u003eShaft: heat-treated 4340 chromoly steel, larger than stock\u003c\/li\u003e\n\u003cli\u003eGrease: proprietary high-temp blend, tested to 586.4°F (308°C)\u003c\/li\u003e\n\u003cli\u003eWarranty: 3 years\u003c\/li\u003e\n\u003cli\u003eLength: stock\u003c\/li\u003e\n\u003cli\u003ePositions: front, rear\u003c\/li\u003e\n\u003cli\u003eSold: individually\u003c\/li\u003e\n\u003cli\u003eReplaces OEM: 1334388, 1334389, 1336922, 2208421\u003c\/li\u003e\n\u003cli\u003eManufacturer Part Number (front): AXRS-1-86-F-0-DT\u003c\/li\u003e\n\u003cli\u003eManufacturer Part Number (rear): AXRS-1-86-R-0-BT\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePolaris RZR Pro XP: 2020+\u003c\/li\u003e\n\u003cli\u003ePolaris RZR Pro XP 4: 2020+\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eReplaces OEM 1334388, 1334389, 1336922, 2208421. These are stock-length axles; lifted or long travel Pro XPs need the axles matched to that kit. Fitment is not guaranteed on applications not listed above; confirm your year, model and cab before ordering.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003ch3\u003eDo they fit the Pro XP 4?\u003c\/h3\u003e\n\u003cp\u003eYes. SuperATV lists the 2020+ RZR Pro XP and Pro XP 4.\u003c\/p\u003e\n\u003ch3\u003eWill they work with a lift or long travel kit?\u003c\/h3\u003e\n\u003cp\u003eThese are stock-length axles. See our Rhino 2.0 Pro XP lift kit and long travel axle listings for those setups.\u003c\/p\u003e\n\u003ch3\u003eWhich OEM part numbers do they replace?\u003c\/h3\u003e\n\u003cp\u003eSuperATV lists OEM 1334388, 1334389, 1336922 and 2208421.\u003c\/p\u003e\n\u003ch3\u003eWhat makes the Phoenix grease different?\u003c\/h3\u003e\n\u003cp\u003eAssault Industries uses a proprietary high-temp grease blend that is virtually waterproof. In lab testing it showed no breakdown at 586.4°F (308°C), the limit of the test equipment, while OEM grease broke down at 365°F.\u003c\/p\u003e\n\u003ch3\u003eHow do they compare to SuperATV Rhino 2.0 axles?\u003c\/h3\u003e\n\u003cp\u003eBoth use heat-treated 4340 chromoly. The Phoenix Axle adds Assault's high-temp grease and a 3-year warranty, versus 18 months on Rhino 2.0; Rhino 2.0 costs less. See our Rhino 2.0 listing for the RZR Pro XP.\u003c\/p\u003e\n\u003ch3\u003eWhat warranty do they carry?\u003c\/h3\u003e\n\u003cp\u003eAssault Industries backs MAS-223 Phoenix Axles with a 3-year warranty.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eWhy Assault Industries\u003c\/h2\u003e\n\u003cp\u003eAssault Industries built the MAS-223 Phoenix Axle around its own high-temperature grease. In Assault's viscosity lab testing the grease showed no breakdown at 586.4°F, where the test equipment maxed out; OEM grease broke down at 365°F. Every MAS-223 Phoenix Axle is backed by a 3-year warranty.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eComplete Your RZR Pro XP Driveline\u003c\/h2\u003e\n\u003cp\u003eWhen one Pro XP axle fails, the others have usually seen the same heat and abuse, so decide which positions you need. Confirm your model, year and option against the fitment list.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@graph\": [{\"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Do they fit the Pro XP 4?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. SuperATV lists the 2020+ RZR Pro XP and Pro XP 4.\"}}, {\"@type\": \"Question\", \"name\": \"Will they work with a lift or long travel kit?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"These are stock-length axles. 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