07327500 – Ariens / Gravely Flat Idler Pulley, 4.00″ × 1.06″ – Genuine OEM The 07327500 Flat Idler Pulley is a genuine Ariens / Gravely OEM replacement part used primarily in transmission belt systems on a wide range of Gravely and Ariens zero-turn and Pro-Master mowers. This pulley features a 4.00-inch outer diameter and 1.06-inch width, designed specifically for flat-belt applications where consistent belt tracking and controlled tension are critical. Manufactured to exact OEM specifications, the 07327500 idler pulley helps maintain smooth power transfer from the engine to the transmission, reducing belt slip, vibration, and premature wear—especially on high-horsepower commercial units. Product Details Part Number: 07327500 Brand: Ariens / Gravely Part Type: Flat Idler Pulley Outside Diameter: 4.00″ Pulley Width: 1.06″ Pulley Style: Flat Primary Use: Transmission belt systems Condition: New, Genuine OEM Key Features & Benefits Genuine OEM Ariens / Gravely part Designed specifically for flat transmission belts Maintains correct belt tension and alignment Reduces belt wear, slippage, and heat buildup Built for durability on high-horsepower commercial mowers Ensures smooth, reliable transmission operation Common Applications The 07327500 idler pulley is widely used in transmission assemblies on many Gravely and Ariens professional models, including: Pro-Master & PM Series PM144Z, PM148Z, PM152Z, PM160Z Hydraulic lift and mechanical lift configurations Kawasaki, Kohler, and Daihatsu engine variants 44″, 48″, 52″, 60″, and 72″ deck sizes Zero-Turn & ZT Models ZT XL / ZT XLP series ZT1844XL, ZT2148XL, ZT2348XL Various production ranges and serial number breaks High-HP Commercial Units 25 HP, 27 HP, 28 HP, and 31 HP configurations 60″ and 72″ deck commercial applications Eye-Q equipped models This pulley is typically found in parts diagrams under: Transmission Transmission Belt Drive Drive Belt & Idler Assembly ⚠️ Important: Because this pulley is used across many models with serial number breaks, always confirm fitment using your machine’s model and serial number before ordering. Why Use the OEM 07327500 Idler Pulley? Preserves factory-designed belt geometry Extends transmission belt life Prevents driveline vibration and noise Ensures long-term reliability in commercial mowing conditions