Rear CV Axle Shaft for Polaris Sportsman 400-800 - Durable Replacement

Our review of the Rear CV Axle Shaft for Polaris Sportsman 400 through 800 finds it to be a practical replacement for riders needing a robust, direct-fit axle. This pair of left and right shafts is aimed at ATV owners who want a strong, ready-to-install swap for worn or damaged axles without custom work. The single biggest reason to buy is the construction: forged 4340 chrome steel and pre-greased joints promise durability and reduced downtime compared with reused or poorly finished aftermarket parts.

Key Features

• High-strength material: 4340 chrome steel construction offers improved toughness and heat resistance up to 600 C for demanding riding conditions.
• Direct replacement: Designed to replace original parts 1380240 and 1380197 so installation is straightforward and requires no adjustments.
• Pre-lubricated assemblies: Each shaft arrives new and greased which reduces initial wear and simplifies installation out of the box.
• Premium rubber boots: Quality boots protect joints from dirt and moisture to extend service life in off-road conditions.
• Pair included: The package includes both left and right rear CV axle shafts so both sides can be serviced at once for consistent performance.

Who It's For

This axle pair is for Polaris Sportsman owners with model years 2003 to 2005 who need a robust, like-for-like replacement for the rear CV axles. It suits riders who prefer to replace both sides at once to avoid uneven wear and who value a part that is ready to install with minimal preparation.

It may not be the top choice for custom builds or non-Polaris models, and buyers seeking OEM-branded paperwork or dealer-backed warranty options should consider factory channels instead.

Pros & Cons

Pros

• Strong 4340 chrome steel construction offers improved durability in extreme conditions.
• Pre-greased and fitted with premium rubber boots for immediate installation and protection.
• Direct-fit replacement for the listed Polaris Sportsman models, simplifying maintenance.

Cons

• Functionality feedback is mixed for some users, so fitment or ride feel may vary by vehicle condition.

Specifications

Our Verdict

For owners of compatible Polaris Sportsman ATVs who need a cost-effective, durable rear axle replacement, this pair represents good value. The use of 4340 chrome steel, pre-greasing, and included boots make installation fast and reduce the chance of early failure, though occasional variability in user experience means checking fit and condition before long rides is wise.

Frequently Asked Questions

Will these axles fit my Polaris Sportsman?
They are designed for Sportsman 400, 500 HO, 600, 700, 700 EFI, 800 EFI, and MV7 models from 2003 to 2005; confirm your model year before ordering.

Are the axles ready to install?
Yes, both shafts come new and pre-greased with premium rubber boots so they are ready for installation with no initial lubrication needed.

Does the package include both sides?
Yes, the package includes a left and right rear CV axle shaft assembly so both sides can be replaced together.