3290-465 Blade Washer (Belleville Washer) – Toro Genuine OEM Part The Toro 3290-465 Blade Washer (WASHER-BELLEVILLE) is a genuine OEM replacement blade washer designed to provide proper tension and secure blade mounting in Toro outdoor power equipment. This Belleville-style conical washer helps maintain consistent clamping force on mower blades, reducing the risk of loosening during operation and ensuring safe, reliable cutting performance. Manufactured to Toro OEM specifications, the 3290-465 blade washer offers durable construction built to withstand demanding mowing conditions, vibration, and heavy blade loads. Product Details Part Number: 3290-465Brand: ToroPart Type: Blade Washer / Belleville WasherApplication: Mower Blade Mounting AssemblyOEM Status: Genuine Toro OEM PartCondition: New Function This Toro Belleville blade washer is designed to: Provide proper spring tension for blade mounting hardwareMaintain secure blade retention during operationReduce loosening caused by vibration and heavy cutting loadsReplace worn, flattened, or damaged blade washers Compatibility Used in many Toro lawn and garden equipment applications, including: Lawn mowersRiding mowersZero-turn mowersMower deck blade mounting assemblies ⚠️ Always verify your equipment model and blade hardware diagram before ordering to ensure correct fitment. Installation / Usage Remove the mower blade mounting bolt and hardwareInspect the existing washer for wear or flatteningInstall the new Toro 3290-465 Belleville washer in the correct orientationReinstall blade hardware and torque to Toro specificationsTest blade security before operation Maintenance Tips Inspect blade washers during every blade serviceReplace washers that show cracking, wear, or loss of tensionAlways torque blade bolts properly for safe operationUse only OEM blade hardware for best fit and reliability