Compatible with Honda models:
Rancher 420 TRX420FE 4x4 ES 2007-2013
Rancher 420 TRX420TM 2x4 2007-2013
Rancher 420 TRX420FM 4x4 2007-2013
Rancher 420 TRX420TE 2x4 ES 2007-2013
Rancher 420 TRX420FPE 4x4 ES EPS 2009-2013
Rancher 420 TRX420FPM 4x4 EPS 2009-2013

Part Number and Dimensions:
Ring Gear: 41431-HP5-600 41543HA0000
Width: 85.25 mm | 3.35"
Inner Diameter: 35 mm | 1.37"
Outer Diameter: 145.6 mm | 5.73"
41 Teeth

Pinion Gear: 41421-HP5-600 41421HP5600
Length: 67 mm | 2.63"
Outer Diameter: 52.1 mm | 2.05"
Gear Diameter: 30.8 mm | 1.21"
Tube Diameter: 15 mm | 0.59"
20 Teeth

Ball Bearing (6009): 91005-PL9-008
Width: 16 mm | 0.62"
Inner Diameter: 45 mm | 1.77"
Outer Diameter: 75 mm | 2.95"

Radial Ball Bearing (45X58X14): 91051-HP5-601
Width: 7 mm | 0.27"
Inner Diameter: 45 mm | 1.77"
Outer Diameter: 58 mm | 2.28"

Radial Bearing (6007): 96100-60073-00
Width: 14 mm | 0.6"
Inner Diameter: 38 mm | 1.5"
Outer Diameter: 62 mm | 2.4"

Needle Bearing: 06910-HP0-A00
Width: 17 mm | 0.67"
Inner Diameter: 15.5 mm | 0.61"
Outer Diameter: 25 mm | 0.98"

Seal (44X63X8): 91255-HP5-601
Width: 14 mm | 0.55"
Inner Diameter: 43 mm | 1.69"
Outer Diameter: 63 mm | 2.48"

Seal (42X51X7): 91271-HC4-004
Width: 6.5 mm | 0.25"
Inner Diameter: 42 mm | 1.65"
Outer Diameter: 51 mm | 2"

Seal (39X70X11): 91251-HP5-601
Width: 11.5 mm | 0.45"
Inner Diameter: 38 mm | 1.49"
Outer Diameter: 70 mm | 2.75"

Ring Gear Shim (1.44): 41663-HP5-600
Inner Diameter: 46 mm | 1.81"
Outer Diameter: 52 mm | 2.04"
Thikness: 1.5 mm | 0.05"

Ring Gear Spacer: 41543-HA0-000
Inner Diameter: 36 mm | 1.41"
Outer Diameter: 43.8 mm | 1.72"
Thickness: 1.9mm | 0.074"

O-Ring (30.8MM): 91302-001-020

O-Ring (75X3.2) (NOK): 91320-HM7-702