EPI WE290112 Front and Rear Differential Seal Kit for Arctic Cat ATV's see fit

OVERVIEW

The EPI WE290112 differential seal kit provides a complete set of replacement seals engineered to rebuild and restore the front or rear differentials in select utility and sport ATVs. Crafted from nitrile butadiene rubber, this maintenance component delivers reliable fluid containment and extended service intervals across demanding off-road platforms. Designed specifically for compatible Arctic Cat driveline housings, it simplifies overhauls while maintaining factory bearing protection and axle integrity.

ENGINEERING & PERFORMANCE

Built from NBR (nitrile butadiene rubber), these seals resist breakdown from hypoid gear oils and high-temperature cycling common in sustained torque applications. The reinforced rubber formula retains elasticity under radial pressure, minimizing the chance of lip curl or extrusion when reassembling differential side covers. Each kit supplies only the necessary seals for a direct overhaul, streamlining maintenance workflows while preserving precise shaft-to-housing tolerances. Component variations align with exact manufacturer specifications to prevent cross-threading or improper seating during installation.

KEY FEATURES

• Differential seal kit designed for front or rear axle rebuilding
• Constructed from NBR (nitrile butadiene rubber) for superior chemical resistance
• Enhanced durability against gear oil contamination and thermal stress
• Complete set of seals required for standard differential overhauls
• Direct replacement design matches OEM housing bore dimensions
• Components vary by model to ensure exact dimensional accuracy
• Maintains proper lubrication sealing and reduces driveline friction
• Simplifies differential rebuild procedures for independent mechanics
• Compatible with multiple Arctic Cat ATV chassis architectures

TECHNICAL SPECIFICATIONS

• Brand: EPI
• Part Name: Front and Rear Differential Seal Kit
• Component Type: Seal Kit
• Material: NBR (nitrile butadiene rubber)
• Supported Years: 2004–2014
• Compatible Trims: Multiple Arctic Cat series including 250, 300, 366, 400, 450, 500, 550, 650, 700, and Prowler lineups

FITMENT

• Arctic Cat 500 Automatic EFI 4x4 (2013–2014)
• Arctic Cat 500 TRV 4x4 (2013–2014)
• Arctic Cat 500 XT 4x4 (2013–2014)
• Arctic Cat 550 XT 4x4 (2013)
• Arctic Cat Prowler 700 HDX 4x4 (2012–2014)
• Arctic Cat 550 EFI 4x4 (2012–2013)
• Arctic Cat 550 GT EFI 4x4 (2012)
• Arctic Cat 450 TRV (2012)
• Arctic Cat 450i TRV GT EFI (2012)
• Arctic Cat 450i EFI 4x4 (2012)
• Arctic Cat 650 4x4 (2012)
• Arctic Cat 650i 4x4 (2012)
• Arctic Cat Prowler 1000 XTZ 4x4 (2011–2014)
• Arctic Cat 450i TRV Automatic EFI (2011–2012)
• Arctic Cat H1 450 4x4 (2010–2011)
• Arctic Cat H1 650 Mud Pro 4x4 (2010–2011)
• Arctic Cat 400 FIS TRV 4x4 (2009–2014)
• Arctic Cat Prowler 550 (2009–2013)
• Arctic Cat H1 700 Mud Pro 4x4 (2009–2011)
• Arctic Cat H1 550 FIS 4x4 (2009–2011)
• Arctic Cat H2 1000 Prowler XTZ 4x4 (2009–2011)
• Arctic Cat Prowler 700 XTX 4x4 (2008–2014)
• Arctic Cat 366 FIS Automatic (2008–2011)
• Arctic Cat H1 700 4x4 (2008–2011)
• Arctic Cat 700 Diesel 4x4 (2007–2014)
• Arctic Cat H1 650 TBX Automatic 4x4 (2007–2009)
• Arctic Cat Prowler 650 (2007)
• Arctic Cat Prowler 650 XT (2006–2009)
• Arctic Cat Prowler XT 650 4x4 (2006–2009)
• Arctic Cat 700 EFI 4x4 (2006–2008)
• Arctic Cat H1 650 FIS 4x4 (2005–2009)
• Arctic Cat 400 VP Manual 4x4 (2005–2006)
• Arctic Cat 400 VP Automatic 4x4 (2005–2006)
• Arctic Cat 500 FIS Manual 4x4 (2004–2009)
• Arctic Cat 500 FIS Automatic 4x4 (2004–2009)
• Arctic Cat 400 FIS Manual 4x4 (2004–2008)
• Arctic Cat 500 FIS TRV 4x4 (2004–2008)
• Arctic Cat 400 FIS Automatic 4x4 (2004–2008)
• Arctic Cat 500 FIS TBX 4x4 (2004–2006)
• Arctic Cat V-2 650 LE Automatic 4x4 (2004–2006)
• Arctic Cat 400 TBX Automatic 4x4 (2004–2006)
• Arctic Cat 300 4x4 (2004–2005)
• Arctic Cat 250 4x4 (2004–2005)
• Arctic Cat 400 Manual 4x4 (2004)
• Arctic Cat 400 Automatic 4x4 (2004)
• Arctic Cat 400 FIS Automatic 4x2 (2004)
• Arctic Cat 400 FIS Manual 4x2 (2004)

WHY RIDERS CHOOSE THIS

Technicians and riders prefer this EPI seal kit because it eliminates inventory guesswork during differential rebuilds, delivering every necessary rubber gasket in one pre-bundled package. The NBR composition actively withstands continuous exposure to sulfur-based gear lubricants and track-level heat, which preserves shaft contact surfaces and prevents abrasive dirt ingress. By restoring exact clearance specifications between rotating components and static housings, the kit stabilizes power delivery and eliminates the whining noises that typically signal worn differential faces. This targeted rebuild approach extends service life and keeps aging Arctic Cat machines operating safely when combined with fresh factory fluid.