Assault Industries Polaris RZR XP 1000 Phoenix Axles (2014-2023)

Assault Industries MAS-223 Phoenix Axles are stock-length replacement axles for the 2014-2023 Polaris RZR XP 1000 and XP 4 1000, with versions for the High Lifter and Trails and Rocks editions. 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.

Choose Front or Rear, then your edition: Standard, High Lifter or Trails and Rocks. Each axle is sold individually.

These Polaris RZR XP 1000 axles cover every common trim. Standard RZR XP 1000 axles come as a RZR XP 1000 front axle or RZR XP 1000 rear axle, and they double as RZR XP 4 1000 axles. Owners of the factory-lifted edition need the RZR High Lifter axles option, and Trails and Rocks owners need the RZR Trails and Rocks axles rear. As RZR XP 1000 heavy duty axles, these are the Phoenix axles RZR riders choose for heat; order one RZR XP 1000 axle or a full set.

Key Features

• Proprietary high-temp grease blend, virtually waterproof
• Grease resists temperatures above 586.4°F (308°C)
• Reduced friction prevents heat buildup
• High pressure tolerance for extreme rides
• Heat-treated 4340 chromoly shafts, larger than stock
• Operates at high CV angles
• Field and lab tested; 3-year warranty

Built To Solve: Overheated CVs on a Polaris RZR XP 1000

• CV joints failing when stock grease overheats
• Boot and CV failures after long, fast pulls
• Stock shafts bending on rocks and logs
• Replacing a broken axle with another stock part

Best For: 2014-2023 Polaris RZR XP 1000 and XP 4 1000 Owners

• 2014-2023 RZR XP 1000 and XP 4 1000 owners
• 2015-2023 RZR XP 1000 High Lifter owners
• 2017-2023 RZR XP 1000 Trails and Rocks owners
• Riders who run hot, fast and at full articulation

Specifications

• Brand: Assault Industries
• Product line: MAS-223 Phoenix Axle
• Shaft: heat-treated 4340 chromoly steel, larger than stock
• Grease: proprietary high-temp blend, tested to 586.4°F (308°C)
• Warranty: 3 years
• Length: stock
• Positions: front, rear
• Editions: Standard, High Lifter, Trails and Rocks (rear only)
• Sold: individually
• Manufacturer Part Number (front, standard): AXRS01-004F0
• Manufacturer Part Number (front, High Lifter 2015-2016): AXRS01-004F0#AA
• Manufacturer Part Number (rear, standard): AXRS01-002R0
• Manufacturer Part Number (rear, High Lifter): AXRS01-002R0#AA
• Manufacturer Part Number (rear, Trails and Rocks): AXRS01-002R0#AB

Fitment

• Polaris RZR XP 1000: 2014-2023
• Polaris RZR XP 4 1000: 2014-2023
• Polaris RZR XP 1000 High Lifter Edition: 2015-2023
• Polaris RZR XP 1000 Trails and Rocks Edition: 2017-2023

Replaces OEM front 1333123, 1333283, 1333420, 1333434, 1334308, 1334492 and rear 1333124, 1333439, 1333718, 1333944, 1334307, 1334490. The High Lifter front axle is listed for 2015-2016; the Trails and Rocks option is a rear axle. Fitment is not guaranteed on applications not listed above; confirm your year, model and cab before ordering.

FAQ

Which option do I pick for a High Lifter?

Choose High Lifter Edition. SuperATV lists the High Lifter front for 2015-2016 and the High Lifter rear for 2015-2023.

Is there a Trails and Rocks front axle?

SuperATV offers a Trails and Rocks rear axle (Gold) for 2017-2023. No separate Trails and Rocks front is listed.

Which OEM part numbers do they replace?

SuperATV lists front 1333123, 1333283, 1333420, 1333434, 1334308, 1334492 and rear 1333124, 1333439, 1333718, 1333944, 1334307, 1334490.

What makes the Phoenix grease different?

Assault 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.

How do they compare to SuperATV Rhino 2.0 axles?

Both 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 XP 1000.

What warranty do they carry?

Assault Industries backs MAS-223 Phoenix Axles with a 3-year warranty.

Why Assault Industries

Assault 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.

Complete Your RZR XP 1000 Driveline

When one RZR XP 1000 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.