Husqvarna 505588401 Blade Shaft Assembly

The Husqvarna 505588401 Blade Shaft Assembly is a genuine OEM component designed for the Soff-Cut150, Soff-Cut150E, Soff-Cut150PACE, and Soff-Cut150D early entry saws. As a direct OEM replacement, this assembly is manufactured to Husqvarna's exact dimensional and material standards, ensuring the blade seats and spins true on every cut. DHS Equipment supplies this part to help keep your early entry saw performing at its best on green concrete applications.

Key Features

• OEM-Grade Shaft Precision — Manufactured to Husqvarna's exact tolerances, this assembly maintains correct blade alignment and concentricity critical to clean, straight cuts in green concrete.
• Direct Drop-In Replacement — Engineered to the original mounting specification, this assembly connects and secures to existing hardware without modification, restoring the saw to its original configuration.
• Broad Soff-Cut150 Series Coverage — Confirmed fitment across the Soff-Cut150, Soff-Cut150E, Soff-Cut150PACE, and Soff-Cut150D early entry saws — cross-reference part number 505588401 against your parts diagram before ordering.
• Restored Blade Drive Integrity — A worn or damaged blade shaft introduces runout and vibration that degrades cut quality and accelerates blade wear; replacing it with this OEM assembly restores smooth, stable blade rotation.
• Operator Safety Compliance — A correctly fitted blade shaft keeps the diamond blade securely centered and locked during operation, reducing the risk of blade slippage or lateral movement on the cut line.

The Blade Shaft Assembly is the central rotating component that transfers power from the saw's drive system to the diamond blade. It holds the blade securely in position, maintaining the precise alignment needed for early entry saw work where straight, narrow control joints must be cut in partially cured concrete without raveling. When this shaft wears, bends, or develops play, the blade loses concentricity — resulting in wider-than-intended cuts, increased vibration, and accelerated wear on both the blade and surrounding drive components. Replacing a compromised shaft promptly restores the tight tolerances that early entry sawing demands.

Part Details

Compatibility & Fitment

Verify Before You Order

Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.

Why Buy From DHS Equipment

Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.

Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.