Description
🧾 Description
Keep your lawn mower running smoothly with this Blade Adapter (Part 184590) — a high-quality replacement designed to fit many Craftsman, Husqvarna, and AYP walk-behind mowers.
This durable adapter connects your mower’s blade securely to the engine shaft, helping ensure smooth, safe, and balanced operation. It’s the ideal fix if your current adapter is worn, cracked, or causing vibration during mowing.
⚠️ Note: Please check with your maintenance technician prior to ordering to confirm the correct fit, shaft size, and compatibility with your specific mower model.
⚙️ Features & Benefits
Features:
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Direct replacement for OEM part number 184590
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Compatible with 25 mm shaft configurations on many 21″ mower decks
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Durable steel construction for long-lasting performance
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Replaces several equivalent part numbers (193707, 418373, 420097, 532184590, 532418373)
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Designed for quick, easy installation
Benefits:
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Improves performance: Reduces blade wobble and vibration for a smoother cut
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Enhances safety: Ensures the blade is mounted securely to prevent loosening
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Extends mower life: Reduces strain on spindle and engine shaft
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Cost-effective: Simple replacement part avoids expensive deck repairs
🔧 Common Symptoms That Indicate Replacement Needed
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Excessive vibration or noise while mowing
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Visible cracks, rust, or warping on the adapter hub
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Loose or unstable blade connection
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Worn keyway or stripped splines
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Blade alignment issues after maintenance
🧺 Compatible Models (Partial List)
This blade adapter fits many Craftsman, Husqvarna, and AYP walk-behind mower models, including (but not limited to):
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Craftsman: 917290810, 917388961, 917387490
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Husqvarna: 532184590, 532418373 series models
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Poulan / AYP: 21″ deck mowers with 25 mm shaft configuration
Compatibility may vary—always confirm with your model number or consult your technician before purchase.
🔁 Cross-Reference / Alternative Part Numbers
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184590 (OEM)
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193707, 418373, 420097, 532184590, 532418373 (Alternate/Replaces)
🧩 Compatibility Notes
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Designed for 25 mm (≈1 inch) shaft diameter — verify before ordering.
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Fits most 21″ deck models that use this standard blade adapter type.
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Check for correct blade bolt pattern and spindle alignment.
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Installation should be performed or verified by a qualified technician to ensure safety.