Description
CAT 259B3 Hydraulic Drive Motor Assembly Nut - Part of CAT Kit Part Number 278-8725, 386-6630
Fits Machine: CAT 259B3 Compact Track Loader
Fits Drive Motor Series: Bonfiglioli
Fits Drive Motor Part #s: 307-3080 and 373-8470
Part of CAT Kit Part #: 278-8725, 386-6630
NOTE: This is Assembly Nut tool ONLY FITS the Bonfiglioli Series Final Drives. Your Drive Motor should have "BONFIGLIOLI" on the manufacturer tag. The Gearbox cover will also have a snap ring with holes on the ends and only 2 oil plug
Keep your CAT 259B3 Final Drive Housings secured with a brand-new assembly nut! This assembly nut is also referred to as a Spanner Nut, Bearing Nut, or Lock Nut. The assembly nut threads onto the brake housing, sets the preload on the hub bearings and keeps your gearbox secured to the rest of the drive motor. We recommend replacing the original assembly nut if it has damaged threads or it was broken during disassembly.
This spanner nut is designed to directly replace the original CAT 259B3 Drive Motor Assembly Nut, ensuring exact OEM-like fitment.
