QuadBoss 414091 Rear Carrier Bearing Upgrade Kit, Honda ATC250/350/TRX250/300/400/450

Replace two side-by-side bearings with one double-wide angular contact bearing to increase capacity and life by 30%. Kits for all late 450cc sport ATVs.

• Replaces two standard bearings with one double-wide performance bearing
• Helps maintain smooth rear axle rotation under aggressive riding
• Direct-fit upgrade designed for popular 450cc sport ATV carriers
• Increases bearing capacity and service life versus stock setup

QuadBoss rear carrier bearing upgrade kit, model 414091, replaces two standard side-by-side bearings with one double-wide angular contact performance bearing. The upgrade is designed to increase bearing capacity and service life by 30% versus the stock setup while helping maintain smooth rear axle rotation during aggressive riding.

This direct-fit upgrade is designed for popular 450cc sport ATV carriers and fits 1999–2008 Honda TRX400EX Sportrax models. Manufacturer and vendor part number: 414091. Brand: QuadBoss.

Features:

• Replacement design: Replaces two standard bearings with one double-wide angular contact performance bearing.
• Capacity and service life: Increases bearing capacity and service life by 30% versus the stock setup.
• Smooth operation: Helps maintain smooth rear axle rotation under aggressive riding.
• Fitment: Fits 1999–2008 Honda TRX400EX Sportrax models.
• Application: Direct-fit upgrade designed for popular 450cc sport ATV carriers.
• Part number: QuadBoss manufacturer and vendor part number 414091.

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Unknown
Part Type: powersports
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1
Fitment:
1985 Honda ATC250R Base
1985 Honda ATC350X Base
1986 Honda ATC250R Base
1986 Honda ATC350X Base
1986 Honda TRX250R Base
1987 Honda TRX250R Base
1987 Honda TRX250X Base
1988 Honda TRX250R Base
1988 Honda TRX250X Base
1989 Honda TRX250R Base
1991 Honda TRX250X Base
1992 Honda TRX250X Base
1993 Honda TRX300EX Sportrax Base
1994 Honda TRX300EX Sportrax Base
1995 Honda TRX300EX Sportrax Base
1996 Honda TRX300EX Sportrax Base
1997 Honda TRX300EX Sportrax Base
1998 Honda TRX300EX Sportrax Base
1999 Honda TRX300EX Sportrax Base
1999 Honda TRX400EX Sportrax Base
2000 Honda TRX300EX Sportrax Base
2000 Honda TRX400EX Sportrax Base
2001 Honda TRX300EX Sportrax Base
2001 Honda TRX400EX Sportrax Base
2002 Honda TRX300EX Sportrax Base
2002 Honda TRX400EX Sportrax Base
2003 Honda TRX300EX Sportrax Base
2003 Honda TRX400EX Sportrax Base
2004 Honda TRX300EX Sportrax Base
2004 Honda TRX400EX Sportrax Base
2004 Honda TRX450R Base
2005 Honda TRX300EX Sportrax Base
2005 Honda TRX400EX Sportrax Base
2005 Honda TRX450R Base
2006 Honda TRX300EX Sportrax Base
2006 Honda TRX400EX Sportrax Base
2006 Honda TRX450ER Electric Start Base
2006 Honda TRX450R Base
2007 Honda TRX300EX Sportrax Base
2007 Honda TRX400EX Sportrax Base
2007 Honda TRX450ER Electric Start Base
2007 Honda TRX450R Base
2008 Honda TRX300EX Sportrax Base
2008 Honda TRX400EX Sportrax Base
2008 Honda TRX450ER Electric Start Base
2008 Honda TRX450R Base
2009 Honda TRX450ER Electric Start Base
2009 Honda TRX450R Base
2012 Honda TRX450ER Electric Start Base
2013 Honda TRX450ER Electric Start Base
2014 Honda TRX450ER Electric Start Base