06609600 – Ariens / Gravely Square Key (.188″ × 1.50″ × .188″) The Ariens / Gravely 06609600 is a genuine OEM square key designed to secure rotating components to shafts in bagger, parking brake, and engine-driven fan assemblies. Precision-machined for a snug fit, this key ensures proper torque transfer and prevents slippage in high-use applications. Manufactured to Ariens and Gravely factory specifications, the 06609600 provides reliable performance and long service life in both commercial mowing and accessory drive systems. Key Details Part Number: 06609600 Brand: Ariens / Gravely (Genuine OEM) Part Type: Square Key Size: .188″ × 1.50″ × .188″ Style: Square (straight) key Function: Secures rotating components to shafts Common Applications This square key is commonly used in a variety of assemblies, including but not limited to: Grass Bagger PM310 Catcher assembly Pro-Stance Ultra Series Parking brake assemblies (52″, 60″, and 72″ models with Kawasaki FX1000 / FX1000 EFI engines) APV Units Self-propelled and push models Engine and fan assemblies (standard and CE variants) (Exact fitment depends on model and serial number range.)