Rear CV Axle Shaft for Polaris Sportsman 450 HO & 570 - Durable

Our review of the Rear CV Axle Shaft for Polaris Sportsman 450 HO and 570 summarizes who will benefit most and why this is a practical replacement. For owners needing a direct-fit rear left or right axle, the biggest reason to consider this unit is its heavy-duty 4340 chromoly steel construction that promises strength where factory halves often fail. The package ships as one rear CV axle with precision CR rubber boots and a compressed length of 21.59 in, making it a straightforward swap for compatible Sportsman models and a smart repair option for riders looking to restore driveline reliability.

Key Features

• Direct fit compatibility: Fits rear left and right positions for specified Polaris Sportsman 450 HO and 570 model years to simplify replacement.
• Cross-reference number: Matches part 1332936 so technicians can verify fitment quickly before installation.
• High-strength material: Built from 4340 chromoly steel and heat-treated to resist breaks under heavy use and rough terrain.
• Sealed boots: Precision CR rubber boots protect joints from dirt and moisture and help prevent oil leaks in a wide temperature range.
• Compressed length: The axle measures 21.59 in compressed, a concrete spec useful for confirming fit with existing components.
• DIY friendly: Packs as a single rear CV axle intended for relatively straightforward installation by experienced home mechanics or shops.

Who It's For

This axle is aimed at Polaris Sportsman owners who need a reliable, like-for-like rear replacement for 450 HO and 570 models listed for 2015 through 2022. It suits riders who frequently traverse rough trails and want a tougher-than-stock shaft made from chromoly steel and sealed boots to reduce future repairs.

Riders who should look elsewhere include those with Sportsman models outside the listed years or owners unsure of left/right position without verifying part cross-reference 1332936. Also, anyone needing a front axle or a complete driveshaft assembly should seek a different product.

Pros & Cons

Pros

• Heavy 4340 chromoly construction offers improved resistance to breakage compared with standard shafts.
• Sealed CR rubber boots help keep contaminants out and protect joint lubrication across wide temperatures.
• Direct replacement for multiple Sportsman 450 HO and 570 model years, easing part selection.

Cons

• Some users report mixed grinding noise feedback after installation, so confirming correct installation and joint condition is important.
• Fitment must be double-checked against vehicle year and position; not universal for all Polaris models.

Specifications

Application	Rear left and right for Polaris Sportsman 450 HO and 570 models
Compatible models	Sportsman 450 HO 2016-2022; Sportsman 570 2015-2021; 570 EPS 2015-2022; 570 Premium 2020-2021; 570 Touring 2015-2022
Cross-reference	1332936
Compressed length	21.59 in
Material	4340 chromoly steel, heat-treated
Boot type	CR rubber sealed boots, -40C to 120C range
Package contents	1 rear CV axle

Our Verdict

The Rear CV Axle Shaft is a solid, cost-effective replacement for Polaris Sportsman owners who need a tougher rear shaft without major vehicle modification. With 4340 chromoly construction, sealed boots, and a direct fit to the listed model years and part 1332936, it offers good value for trail riders and DIY mechanics. Verify fitment and install carefully to avoid the intermittent noise some users report.

Frequently Asked Questions

Will this axle fit both rear sides?
Yes, it is sold as a rear axle compatible with left and right positions for the specified Sportsman models, but confirm fit using the cross-reference 1332936.

What is the compressed length?
The axle has a compressed length of 21.59 in, useful for matching to your existing shaft dimensions.

Are the boots durable for off-road use?
The CV joints use precision CR rubber boots rated for -40C to 120C to resist dirt, moisture, and oil leaks in demanding conditions.