Hustler / BigDog Flat Steel Idler Pulley 5.758" Deck Pulley (Replaces 604231 / 607479 / 126124)

Description

This high-quality aftermarket flat steel idler pulley is designed to replace selected Hustler and BigDog deck idler pulley assemblies. Manufactured from durable steel, it ensures smooth belt operation, proper tension, and long service life in demanding mowing conditions.

Ideal for Hustler Dash, FasTrak, Raptor, and BigDog Alpha series zero-turn mowers.

🔄 Replaces OEM Part Numbers

BigDog:
• 126124 (Kit)
• 604231 (Pulley)
• 607479 (Pulley)
• 605508 (Washer)

Hustler:
• 126124 (Kit)
• 604231 (Pulley)
• 607479 (Pulley)
• 605508 (Washer)

📏 Specifications

• Pulley Diameter: 5.758" (146.25 mm)

• Inside Bore: 1/2" (12.7 mm)

• Height: 1.324" (33.63 mm)

• Deck Sizes: 48", 52", 54", 60"

• Material: Steel

• Type: Flat Idler Pulley

✅ Fits Selected Models

BigDog Alpha / Alpha MP Series

• 48" Cut: 932947EX, 936526EX, 937581EX

• 52" Cut: 932913EX, 939124EX

• 54" Cut: 932939EX, 936518EX, 937573EX

Hustler Models

• Dash XD (940767EX)

• FasTrak (940346EX, 940353EX, 940361EX)

• FasTrak SDX (940411EX, 940429EX, 940437EX, 942086EX)

• Raptor Flip-Up (935288EX)

• Raptor SD (932566EX, 936542EX, 938399EX, 932558EX, 936534EX)

• Raptor XD (940510EX, 939751EX)

• Raptor XDX (941492EX, 941500EX, 941518EX)

📦 Kit Includes

• 1 × Flat Idler Pulley

• 1 × Washer

⚙️ Function

• Maintains correct deck belt tension

• Ensures smooth blade drive operation

• Reduces belt wear and vibration