IDEASURE 21-Inch Mulching Blade 331737B for Husqvarna, Craftsman, AYP

Overview

Experience dependable cutting performance with the IDEASURE 21-inch mulching blade (model 331737B). Designed for a broad range of 21-inch decks, this blade aims to deliver consistent, precise results across various lawns—from manicured front yards to backyard fields.

The blade combines a durable steel build with a sharp, balanced edge that respects the rhythm of your mowing routine. The mulching design finely chops grass and returns it to the soil, supporting even growth and reducing the need for frequent bagging on certain setups.

Key features in practice

• Compatibility across many Husqvarna, Craftsman, and AYP Pou-LAN decks, with replacement part numbers listed in the specs.
• Precisely sized for 21-inch decks: length 21 inches, width 2-1/4 inches, thickness 0.138 inches.
• Mounting pattern includes center hole 5/8 inch and outer holes 3/8 inch for standard setups.

Compatibility at a glance

The blade replaces a wide range of OEM parts and is designed to fit diverse models. For exact alignment, compare your deck size and hole positions to the specifications in the listing.

• Replaces part numbers: 165833, 165833B, 175064, 159267, 176135, 189028, 406706, 406712, 531300765, 532175064, 532176135, 532189028, 532406712, 539111878, 594893001, 917175064, 917175064PB, 917176135, 917532165833, 917532175064, 917532176135, 33275, 33524, 501807402, 531307235, 532145064, 532165833, 532437165, PP22024.
• Fits a wide array of AYP, Husqvarna, and Craftsman models listed in the compatibility notes.

What’s included and quick-hitting installation tips

Package includes one IDEASURE blade sized for a 21" deck. Before ordering, confirm your mower uses a 21" deck and that the mounting holes align with the listed specs. A balanced blade helps reduce vibration during cutting.

• Specifications: Length 21", Width 2-1/4", Thickness 0.138", Center Hole 5/8", Outside Hole 3/8".
• Installation reminder: check alignment and balance before first use to ensure a smooth, even cut.

Real-world use scenarios

Picture a weekend mowing session: the blade glides through tall or damp grass with steady momentum, producing clean, uniform clippings. On slopes, the balance helps maintain control and consistent cut quality across the blade span.

Specifications at a glance

• Model: IDEASURE 331737B
• Deck compatibility: 21 inches
• Material: robust steel with precise grinding
• Replacement guidance: verify model and deck match prior to purchase