Heavy Duty Steel Deck Idler Pulley (Direct Replacement for Bush Hog 88663)

Upgrade or replace your worn-out deck idler pulley with this heavy-duty commercial-grade replacement pulley. Designed for tractor mower decks, zero-turn mowers, and agricultural finish mowers. Features a corrosion-resistant yellow zinc dichromate coating and an integrated precision sealed ball bearing to ensure smooth belt operation, reduced vibration, and longer belt lifespan.

Technical Specifications:

  • Outer Diameter (OD): 5-3/4 in (5.75" / 146 mm)

  • Inside Diameter (Bore / Center Hole): 5/8 in (0.63" / 16 mm)

  • Total Height / Thickness: 1.54 in (39 mm)

  • Belt Groove Width: 1-1/16 in (1.06" / 27 mm)

  • Material: Heavy-Duty Stamped Carbon Steel

  • Surface Finish: Yellow Zinc Dichromate Plated (Rust & Corrosion Resistant)

  • Bearing Type: High-Speed Pre-Lubricated Sealed Ball Bearing

  • Fitment Type: Direct OEM Aftermarket Replacement

Replaces OEM Part Numbers:

  • Bush Hog: 88663, 88663BH, 88663-BH

  • Land Pride / King Kutter: Matching 5-3/4" x 5/8" spec pulleys

Compatible Models & Applications:

  • Bush Hog Finish Mowers: ATH480, ATH600, ATH720, FTH480, FTH600, FTH720, RDTH60, RDTH72, RDTH84

  • Universal Fitment: Suitable for various lawn mowers, riding mowers, zero-turn decks, and tractor rotary cutters requiring a 5-3/4" OD pulley with a 5/8" mounting bore.

Package Includes:

  • 1x Heavy Duty Steel Idler Pulley Assembly