QuadBoss Rear IRS Knuckle Only Repair Kit — Fits 07-12 Yamaha YFM400FB Big Bear 4x4

SKU: QBS417213
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About QuadBoss QuadBoss is the ATV and UTV aftermarket leader ...Read More

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Sale price$67.99
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About QuadBoss

QuadBoss is the ATV and UTV aftermarket leader — replacement axle shafts, drive belts, clutches, and tires for Polaris RZR, Can-Am Maverick, Yamaha YXZ, and Honda Talon. The trusted choice for serious side-by-side owners.

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QuadBoss Rear Independent Suspension Knuckle Repair Kit for Yamaha

Keep your Yamaha Big Bear 4x4 or Rhino running smoothly with this QuadBoss Rear IRS Knuckle Repair Kit. Specifically designed for the rear independent suspension system, this kit addresses common wear and tear issues, ensuring optimal performance and handling on the trails.

Product Highlights:

  • Precision Fitment: Engineered as a direct replacement for the original knuckle, guaranteeing compatibility with your Yamaha ATV.
  • Enhanced Durability: Constructed from high-strength materials to endure the rigors of off-road use, providing reliable service for years to come.
  • Restores Ride Quality: Helps to eliminate looseness in the suspension, improving steering precision and overall ride comfort.
  • Extensive Vehicle Compatibility: Fits a wide range of Yamaha models including 2002-2008 YFM660F Grizzly 4x4, 2018-2019 YFM700 Grizzly EPS, 2006-2009 YXR45F Rhino 450, 2004-2007 YXR66F Rhino 660, and 2008-2013 YXR700F Rhino 700 FI.

This QuadBoss knuckle kit is essential for maintaining the performance and safety of your Yamaha's rear suspension. Whether you're navigating challenging terrain or enjoying a leisurely ride, a properly functioning IRS is crucial. Ensure your vehicle is ready for any adventure.

Find quality suspension parts for your Yamaha at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2002-2008 Yamaha YFM660F Grizzly 4x4 Base
2018-2019 Yamaha YFM700 Grizzly EPS Base
2006-2009 Yamaha YXR45F Rhino 450 Base
2004-2007 Yamaha YXR66F Rhino 660 Base
2008-2013 Yamaha YXR700F Rhino 700 FI Base

Product Details

Product Description
Part Numbers
Sizing & Fit

About QuadBoss

QuadBoss is the ATV and UTV aftermarket leader — replacement axle shafts, drive belts, clutches, and tires for Polaris RZR, Can-Am Maverick, Yamaha YXZ, and Honda Talon. The trusted choice for serious side-by-side owners.

Watch in action

QuadBoss Rear Independent Suspension Knuckle Repair Kit for Yamaha

Keep your Yamaha Big Bear 4x4 or Rhino running smoothly with this QuadBoss Rear IRS Knuckle Repair Kit. Specifically designed for the rear independent suspension system, this kit addresses common wear and tear issues, ensuring optimal performance and handling on the trails.

Product Highlights:

  • Precision Fitment: Engineered as a direct replacement for the original knuckle, guaranteeing compatibility with your Yamaha ATV.
  • Enhanced Durability: Constructed from high-strength materials to endure the rigors of off-road use, providing reliable service for years to come.
  • Restores Ride Quality: Helps to eliminate looseness in the suspension, improving steering precision and overall ride comfort.
  • Extensive Vehicle Compatibility: Fits a wide range of Yamaha models including 2002-2008 YFM660F Grizzly 4x4, 2018-2019 YFM700 Grizzly EPS, 2006-2009 YXR45F Rhino 450, 2004-2007 YXR66F Rhino 660, and 2008-2013 YXR700F Rhino 700 FI.

This QuadBoss knuckle kit is essential for maintaining the performance and safety of your Yamaha's rear suspension. Whether you're navigating challenging terrain or enjoying a leisurely ride, a properly functioning IRS is crucial. Ensure your vehicle is ready for any adventure.

Find quality suspension parts for your Yamaha at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2002-2008 Yamaha YFM660F Grizzly 4x4 Base
2018-2019 Yamaha YFM700 Grizzly EPS Base
2006-2009 Yamaha YXR45F Rhino 450 Base
2004-2007 Yamaha YXR66F Rhino 660 Base
2008-2013 Yamaha YXR700F Rhino 700 FI Base

Product Details

Product Description

About QuadBoss

QuadBoss is the ATV and UTV aftermarket leader — replacement axle shafts, drive belts, clutches, and tires for Polaris RZR, Can-Am Maverick, Yamaha YXZ, and Honda Talon. The trusted choice for serious side-by-side owners.

Watch in action

QuadBoss Rear Independent Suspension Knuckle Repair Kit for Yamaha

Keep your Yamaha Big Bear 4x4 or Rhino running smoothly with this QuadBoss Rear IRS Knuckle Repair Kit. Specifically designed for the rear independent suspension system, this kit addresses common wear and tear issues, ensuring optimal performance and handling on the trails.

Product Highlights:

  • Precision Fitment: Engineered as a direct replacement for the original knuckle, guaranteeing compatibility with your Yamaha ATV.
  • Enhanced Durability: Constructed from high-strength materials to endure the rigors of off-road use, providing reliable service for years to come.
  • Restores Ride Quality: Helps to eliminate looseness in the suspension, improving steering precision and overall ride comfort.
  • Extensive Vehicle Compatibility: Fits a wide range of Yamaha models including 2002-2008 YFM660F Grizzly 4x4, 2018-2019 YFM700 Grizzly EPS, 2006-2009 YXR45F Rhino 450, 2004-2007 YXR66F Rhino 660, and 2008-2013 YXR700F Rhino 700 FI.

This QuadBoss knuckle kit is essential for maintaining the performance and safety of your Yamaha's rear suspension. Whether you're navigating challenging terrain or enjoying a leisurely ride, a properly functioning IRS is crucial. Ensure your vehicle is ready for any adventure.

Find quality suspension parts for your Yamaha at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2002-2008 Yamaha YFM660F Grizzly 4x4 Base
2018-2019 Yamaha YFM700 Grizzly EPS Base
2006-2009 Yamaha YXR45F Rhino 450 Base
2004-2007 Yamaha YXR66F Rhino 660 Base
2008-2013 Yamaha YXR700F Rhino 700 FI Base

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