QuadBoss Rear IRS Knuckle Kit for Polaris Ranger RZR 4 800 2012-2013

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SKU: QBS420765
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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.

Enhance Your Polaris RZR 4 800's Suspension with a QuadBoss IRS Knuckle Kit

Is your Polaris RZR 4 800's rear suspension feeling worn or unresponsive? Restore its integrity and improve handling with this high-quality QuadBoss Independent Rear Suspension (IRS) Knuckle Kit. Designed for durability and performance, this kit ensures your off-road adventures are smoother and more reliable.

Superior Construction for Longevity

This knuckle kit features self-lubricating acetal nylon bushings, offering superior wear resistance and enhanced performance compared to standard components. The metal bushings are case-hardened and plated, providing exceptional protection against wear and corrosion, ensuring a longer service life even under demanding off-road conditions.

Vehicle Fitment

  • Make: Polaris
  • Model: Ranger RZR 4 800
  • Submodel: Base
  • Years: 2012, 2013
  • Also Fits: Polaris RZR 800 (2014), RZR S 800 (2014), Sportsman 700 EFI X2 (2008), Sportsman 800 EFI Touring (2008-2009), Sportsman 800 EFI X2 (2008-2009)

Key Features & Benefits

  • Direct replacement for the rear independent suspension knuckle.
  • Self-lubricating acetal nylon bushings for reduced friction and wear.
  • Case-hardened and plated metal bushings for maximum durability.
  • Restores proper wheel alignment and suspension geometry.
  • Improves steering response and overall ride comfort.

Don't compromise on your ride's performance. Equip your Polaris RZR 4 800 with the reliability and quality of a QuadBoss IRS Knuckle Kit. Order yours from GGCRACING today!

Vehicle Fitment

Years Make Model Trim
2014 Polaris RZR 800 Base
2014 Polaris RZR S 800 Base
2012-2013 Polaris Ranger RZR 4 800 Base
2008 Polaris Sportsman 700 EFI X2 Base
2008-2009 Polaris Sportsman 800 EFI Touring Base
2008-2009 Polaris Sportsman 800 EFI X2 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.

Enhance Your Polaris RZR 4 800's Suspension with a QuadBoss IRS Knuckle Kit

Is your Polaris RZR 4 800's rear suspension feeling worn or unresponsive? Restore its integrity and improve handling with this high-quality QuadBoss Independent Rear Suspension (IRS) Knuckle Kit. Designed for durability and performance, this kit ensures your off-road adventures are smoother and more reliable.

Superior Construction for Longevity

This knuckle kit features self-lubricating acetal nylon bushings, offering superior wear resistance and enhanced performance compared to standard components. The metal bushings are case-hardened and plated, providing exceptional protection against wear and corrosion, ensuring a longer service life even under demanding off-road conditions.

Vehicle Fitment

  • Make: Polaris
  • Model: Ranger RZR 4 800
  • Submodel: Base
  • Years: 2012, 2013
  • Also Fits: Polaris RZR 800 (2014), RZR S 800 (2014), Sportsman 700 EFI X2 (2008), Sportsman 800 EFI Touring (2008-2009), Sportsman 800 EFI X2 (2008-2009)

Key Features & Benefits

  • Direct replacement for the rear independent suspension knuckle.
  • Self-lubricating acetal nylon bushings for reduced friction and wear.
  • Case-hardened and plated metal bushings for maximum durability.
  • Restores proper wheel alignment and suspension geometry.
  • Improves steering response and overall ride comfort.

Don't compromise on your ride's performance. Equip your Polaris RZR 4 800 with the reliability and quality of a QuadBoss IRS Knuckle Kit. Order yours from GGCRACING today!

Vehicle Fitment

Years Make Model Trim
2014 Polaris RZR 800 Base
2014 Polaris RZR S 800 Base
2012-2013 Polaris Ranger RZR 4 800 Base
2008 Polaris Sportsman 700 EFI X2 Base
2008-2009 Polaris Sportsman 800 EFI Touring Base
2008-2009 Polaris Sportsman 800 EFI X2 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.

Enhance Your Polaris RZR 4 800's Suspension with a QuadBoss IRS Knuckle Kit

Is your Polaris RZR 4 800's rear suspension feeling worn or unresponsive? Restore its integrity and improve handling with this high-quality QuadBoss Independent Rear Suspension (IRS) Knuckle Kit. Designed for durability and performance, this kit ensures your off-road adventures are smoother and more reliable.

Superior Construction for Longevity

This knuckle kit features self-lubricating acetal nylon bushings, offering superior wear resistance and enhanced performance compared to standard components. The metal bushings are case-hardened and plated, providing exceptional protection against wear and corrosion, ensuring a longer service life even under demanding off-road conditions.

Vehicle Fitment

  • Make: Polaris
  • Model: Ranger RZR 4 800
  • Submodel: Base
  • Years: 2012, 2013
  • Also Fits: Polaris RZR 800 (2014), RZR S 800 (2014), Sportsman 700 EFI X2 (2008), Sportsman 800 EFI Touring (2008-2009), Sportsman 800 EFI X2 (2008-2009)

Key Features & Benefits

  • Direct replacement for the rear independent suspension knuckle.
  • Self-lubricating acetal nylon bushings for reduced friction and wear.
  • Case-hardened and plated metal bushings for maximum durability.
  • Restores proper wheel alignment and suspension geometry.
  • Improves steering response and overall ride comfort.

Don't compromise on your ride's performance. Equip your Polaris RZR 4 800 with the reliability and quality of a QuadBoss IRS Knuckle Kit. Order yours from GGCRACING today!

Vehicle Fitment

Years Make Model Trim
2014 Polaris RZR 800 Base
2014 Polaris RZR S 800 Base
2012-2013 Polaris Ranger RZR 4 800 Base
2008 Polaris Sportsman 700 EFI X2 Base
2008-2009 Polaris Sportsman 800 EFI Touring Base
2008-2009 Polaris Sportsman 800 EFI X2 Base

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