Compatible with Honda Models:
FourTrax 300 TRX300 2x4 1988-1994
FourTrax 300 TRX300FW 4x4 1988 1990-1994

Part Number & Dimensions:
Grease Holder: 52112-MA1-300
Outer Diameter: 40.15 mm - 1.58 in
Inner Diameter: 32.2 mm - 1.26 in
Thickness: 3.6 mm - 0.14 in
Material: Iron

Angular Bearing: 91066-HC4-004
Width: 11.9 mm - 0.46 in
Inner Diameter: 12 mm - 0.47 in
Outer Diameter: 40 mm - 1.57 in
Material: Metal

Dust Seal: 91268-463-003
Width: 4.9 mm - 0.19 in
Inner Diameter: 26 mm - 1.02 in
Outer Diameter: 40.2 mm - 1.58 in

Pivot Bolt B: 90122-HM5-930, 90122-HC4-000
Length: 41.08 mm - 1.61 in
Head Diameter: 42.93 mm - 1.69 in
Material: Iron

Bolt: 90121-HM5-930
Length: 46.0mm - 1.8 in
Head Diameter: 17.4 mm - 0.68 in
Stud Diameter: 29.5 mm - 1.16 in
Material: Iron

Nut: 90355-469-000
Width: 11.1 mm - 0.43 in
Inner Diameter: 28.5 mm - 1.12 in
Outer Diameter: 37.3 mm - 1.46 in

Note: Installs On Location (A) & (B) In Second Picture
Rear Swing Arm Part Numbers: 52100-HM5-A80, 52100-HC4-000