V-Idler Pulley, 3/8"Bore X 2-5/8"OD

V-Idler Pulley, 3/8"Bore X 2-5/8"OD

The A-B1SB729 V-Idler Pulley is a reliable V-groove idler pulley designed to maintain proper belt tension and smooth belt tracking in a wide range of lawn and garden equipment. With a 3/8" bore and 2-5/8" outside diameter, it’s a common replacement option across many OEM references—because belts behave a lot better when the pulley isn’t worn into a “creative new shape.”

Country of Origin
Varies by production batch

Key Features / Specifications

• Model / Part Number: A-B1SB729
• Product Type: V-idler pulley
• Pulley Style: V-groove
• Bore Size: 3/8 in
• Outside Diameter (OD): 2-5/8 in
• Cross / Reference: MegaCross
• Replaces / Cross-References (partial list):
  • CASE-IH: C23456
  • PHOENIX: V40AO
  • SEARS / ROPER / AYP: 016-176, 016176, 75672
  • SNAPPER: 1-4208, 14208, 7014208, 7014208YP, 7014208YP (YAZOO/KEES), 842981
  • MASSEY FERGUSON: 1023-556-M1, 1023-556-M91, 1023556M1, 1023556M91
  • TORO / WHEEL HORSE: 110370, 12-5820, 125820
  • BOLENS / FMC / TROY-BILT: 172-7978, 1727978
  • GILSON / LAWN BOY: 23486, 742223, 742233
  • STENS / DB ELECTRICAL: 280-255, 280255
  • OREGON: 34-031, 34031
  • MURRAY / NOMA-AMF-DYNAMARK: 47781, 48881, 53243
  • PRIME LINE: 7-05213, 705213
  • MTD / CUB CADET / WHITE: 756-0166, 756-1035, 756-1035A, 7560166, 7561035A, 956-0166, 9560166
  • CRAFTSMAN: 75672
  • HOMELITE / JACOBSEN: 325267
  • ROTARY: 729
  • LASER SALES: 95108
  • HUFFY: 9992
  • RUGG: 10858

Ideal For

• Replacing a worn idler pulley to restore proper belt tension and tracking
• Lawn and garden equipment repairs needing a 3/8" bore x 2-5/8" OD V-idler pulley
• Cross-referencing multiple OEM part numbers for maintenance and service work
• Anyone who’d like their belt to stay on the pulleys—where it belongs