Primary Drive Clutch and Aramid Belt. Big Boss 500 6x6 1998. This model uses serpentine and non-serpentine pulley primary drive clutches.
This item is a braking and serpentine one. 1x Primary Drive Clutch: 1321706, 1321971. Outer Diameter: 185 mm - 7.25 in. Height: 164 mm - 6.5 in. Shaft Hole Inner Diameter: 28 mm - 1.1 in.
Bearing Outer Diameter: 57 mm - 2.2 in. 1x Aramid Belt: 3211077, 3211048, 3211072.
Length: 1040 mm - 40.9 in. Width: 30 mm - 1.18 in. Thickness: 13 mm - 0.51 in.