Description

OE NUMBER: 4V8520, 4V-8520
DES: bucket bush, bushing, bushes, bearing
Fits: replace Caterpillar

Materials: 40Cr, 20MnCr, 20CrMo, 20CrMnTi
Hardness: HRC= 56-62
Harden Depth: 0.8 to 1.0mm