Husqvarna - 581685301 - WHL 8X1

* This part replaces: 638-0019

Hydro-Gear - 51049 - GEROTOR & HSG (50959)

* This part replaces: 1740553

Size of attachment holes reduce probability of locking carabiner rotation

Oregon 91-591 High Lift Blade for 90" Jacobsen - 4124087, 4137186, 4163105, 4163106 Primer Bulb Husqvarna - 581685301 - WHLSPECIFICATIONS Blade Width 2. 50" Thickness 0. 250" Blade Length 22 5 16" Center Hole Size 1 2" OffSet 1 8" Air Lift 1 1 8" PRODUCT FEATURES The Oregon 91 591 replacement lawn mower blade is made to the exact OEM specification for optimum performance. Our blades are individually straightened and hardened to provide a consistent, cleaner cut and increase blade longevity. PRODUCT DETAILS Center hole: 1 2" Requires 5 blades for 90" cut Requires 7 blades