V Idler Pulley 3/8" x 4" (IV64B) – Heavy-Duty Steel V-Groove Pulley

The V Idler Pulley 3/8" x 4" (IV64B) is a heavy-duty replacement pulley built for pressure washers, small engines, lawn tractors, and industrial equipment. Designed with a 4-inch outer diameter and a 3/8-inch bore, this precision-machined V-groove pulley ensures proper belt tracking, reduced slippage, and smooth, efficient power transfer in any belt-driven system.

Constructed from high-strength steel and equipped with a sealed ball bearing, the IV64B pulley offers long service life, quiet operation, and corrosion resistance — making it ideal for both residential and commercial applications.

Features & Specifications:

• Product Type: V Idler Pulley

• Model Number: IV64B

• Outer Diameter: 4 inches

• Bore Diameter: 3/8 inch

• Design: V-Groove for standard V-belts

• Material: Heavy-duty stamped steel

• Bearing Type: Sealed ball bearing – maintenance-free operation

• Finish: Corrosion- and wear-resistant black coating

• Function:

  • Maintains correct belt alignment and tension

  • Reduces vibration and belt wear

  • Ensures efficient power transfer

• Applications:

  • Pressure washers and softwash systems

  • Lawn tractors and garden mowers

  • Small engines and industrial belt-driven machinery

• Durability:

  • Built to handle high RPMs and heavy loads

  • Resistant to heat, moisture, and wear

• Installation: Direct OEM-style fit; installs easily on standard idler brackets

Why Choose the V Idler Pulley 3/8" x 4" (IV64B):

• Precision-machined for reliable belt tracking

• Heavy-duty steel design with sealed bearing for longevity

• Smooth and quiet operation under load

• Universal fit for multiple equipment types

• Ideal for mower decks, pumps, compressors, and drive systems

The V Idler Pulley 3/8" x 4" (IV64B) provides long-lasting performance and dependable belt control for any equipment that relies on consistent, smooth power transmission.