Husqvarna 585478201 7/8" B&S AWD Blade Adapter – Replacement Lawn Mower All-Wheel Drive Blade Adapter

Part Number: 585478201
Category: Lawn & Garden Equipment Replacement Parts
Type: 7/8" B&S AWD Blade Adapter – Replacement Lawn Mower All-Wheel Drive Blade Adapter

The Husqvarna 585478201 7/8" B&S AWD Blade Adapter is a replacement mower cutting-system component designed for compatible Husqvarna all-wheel-drive lawn mowers using the applicable Briggs & Stratton (B&S) engine configuration. Identified with a 7/8-inch adapter designation, this component helps provide the connection between the applicable engine drive shaft and mower blade assembly, supporting proper blade positioning, alignment, and rotational power transfer. Ideal for replacing a worn, cracked, bent, damaged, distorted, or otherwise unserviceable blade adapter, the 585478201 helps restore secure blade mounting and reliable cutting-system operation.

Product Specifications

• Part Number: 585478201
• Brand: Husqvarna
• Product Type: Blade Adapter
• Adapter Size: 7/8", where specified
• Engine Application: B&S (Briggs & Stratton), where specified
• Drive Configuration: All-Wheel Drive (AWD)
• Component Type: Replacement Lawn Mower Blade Adapter
• Application: Lawn Mower / Lawn & Garden Equipment
• System: Mower Blade & Cutting System
• Function: Blade Mounting, Alignment & Rotational Power Transfer
• Condition: New

Features & Benefits

• Replacement 7/8" blade adapter for compatible Husqvarna lawn mowers
• Identified for applicable Briggs & Stratton (B&S) engine configurations
• Designed for applicable all-wheel-drive (AWD) mower applications
• Provides the mounting interface between applicable drive and blade components
• Helps maintain proper blade positioning and alignment during operation
• Supports rotational power transfer to the mower blade
• Helps maintain a secure connection within the mower cutting assembly
• Helps restore cutting-system operation when the original adapter becomes worn or damaged
• Suitable for replacing a worn, cracked, bent, distorted, damaged, or otherwise unserviceable blade adapter
• Direct replacement option when Husqvarna part number 585478201 is specified

Applications

• Husqvarna lawn mowers
• Compatible Husqvarna walk-behind mowers
• All-wheel-drive (AWD) lawn mower configurations
• Applicable Briggs & Stratton engine-equipped mowers
• Mower blade mounting assemblies
• Engine shaft and blade interfaces
• Lawn mower cutting systems
• Blade drive and power-transfer assemblies
• Replacement of worn or damaged mower blade adapters
• Applications specifying Husqvarna 585478201

Important Notes

• Verify part number 585478201 before ordering
• Confirm compatibility with your specific Husqvarna mower model, engine, blade, and cutting-system configuration
• This component is identified as a 7/8" B&S AWD blade adapter; verify the required adapter configuration before ordering
• The 7/8" designation should be confirmed against the applicable shaft or mounting interface and should not be used as the sole basis for compatibility
• The B&S designation refers to an applicable Briggs & Stratton engine application, but compatibility should still be confirmed using the mower model and parts information
• The exact overall dimensions, adapter height, material, shaft bore dimensions, keyway or drive configuration, blade engagement features, mounting-hole dimensions, and compatible engine models are not identified in the supplied product information
• Compare the original adapter’s bore or shaft interface, overall dimensions, drive features, blade engagement surfaces, mounting configuration, and orientation
• Do not substitute a blade adapter based solely on approximate bore size, engine brand, AWD configuration, or appearance
• Inspect associated engine crankshaft or drive shaft, mower blade, blade bolt, washers, keys, retainers, mounting hardware, and cutting deck components for wear or damage
• If the original blade adapter was damaged following a blade impact with a rock, stump, curb, root, or other solid object, inspect the complete cutting assembly and engine shaft for bending or other impact-related damage
• Check the adapter and adjoining components for cracks, deformation, worn engagement surfaces, damaged keyways, excessive play, corrosion, or other conditions that could prevent secure blade mounting
• A worn, bent, loose, or incorrectly installed blade adapter may contribute to blade wobble, vibration, poor cutting performance, abnormal noise, mounting looseness, or damage to associated cutting components
• Make sure all blade mounting surfaces are clean and correctly seated before tightening the blade assembly
• Install the mower blade in the correct orientation and use the applicable manufacturer-specified blade fastener and torque procedure
• Never operate the mower with a loose, damaged, incorrectly mounted, or improperly aligned blade or blade adapter
• This listing is for the 7/8" B&S AWD blade adapter; do not assume that the mower blade, blade bolt, washers, keys, retainers, engine shaft components, or additional mounting hardware are included unless specifically stated
• Shut off the engine, disconnect the spark plug, and make sure the blade and all moving components have completely stopped before servicing the mower cutting system
• Wear appropriate protective gloves when handling mower blades and cutting-system components
• After installation, verify proper adapter fitment, shaft engagement, blade positioning, mounting security, blade clearance, rotational alignment, and overall cutting-system operation before returning the mower to normal service