How many ball joint kits do I need for my ATV?

Each QuadBoss Ball Joint Kit is sold per A-arm. Your Yamaha YFM250 Big Bear or Bruin has two A-arms per side (upper and lower), so you will need to order two kits per side of the vehicle if replacing all four ball joints.

What makes this ball joint better than the original equipment (O.E.M.)?

This QuadBoss kit upgrades from the O.E.M. aluminum ball joint to a heavy-duty steel case. This construction is designed to be more durable and resist failure, especially in demanding conditions.

Does this kit come with all the necessary hardware for installation?

Yes, each ball joint kit includes the required snap ring and cotter pin to help you complete the installation.

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Specifications

Brand: QuadBoss
Part #: 414825
UPC: 414825

QuadBoss Ball Joint Kit

Name: QuadBoss Ball Joint Kit
Brand: QuadBoss
Price: 40.53 USD
Availability: InStock

$40.53

In Stock

Fits 2007-2009 Yamaha YFM250 Big Bear. This heavy-duty steel ball joint kit replaces O.E.M. aluminum joints for improved durability.

Key Features

Fits 2007-2009 Yamaha YFM250 Big Bear and 2005-2006 Yamaha YFM250 Bruin.
Heavy-duty steel cases offer improved durability over O.E.M. aluminum joints.
POM-M90 bearing cup isolates the ball end for a longer service life.
Sold per A-arm, making it easy to order the correct quantity for your vehicle.
Includes snap ring and cotter pin for a complete installation.

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Fits these vehicles

Yamaha YFM250 Big Bear 2007-2009
Yamaha YFM250 Bruin 2005-2006

Product Details

If you're working on your 2007-2009 Yamaha YFM250 Big Bear, this QuadBoss Ball Joint Kit is a solid upgrade over the stock aluminum joint. It's designed to handle more stress and last longer, potentially saving you from replacing an entire A-arm or steering knuckle down the road.

This kit uses heavy-duty steel cases that hold a POM-M90 bearing cup. This setup isolates the ball end from the case, which helps extend its lifespan. You get a well-built replacement part that's ready to get your ATV back on the trail with improved suspension performance.

Each kit is sold per A-arm and includes the necessary snap ring and cotter pin to get the job done. It's a straightforward replacement for your worn-out ball joints.