2 Pack Genuine Husqvarna 539133049 Black Round Ball Knob OEM Belts · Cutter corner radius is

· Cutter corner radius is sharper

· Rotary Part # 237

· Fits Husqvarna 583070001

· Genuine Husqvarna Part # 501842668

REPLACES OEM B&S 490586

2 Pack Genuine Husqvarna 539133049 Black Round Ball Knob OEM Belts · Cutter corner radius is(2) Pack of Brand New Genuine Husqvarna Black Round Ball Knobs Genuine Husqvarna Part # 539133049 Fits Specific Husqvarna Models That Require This Part # Also Will Fit Other Husqvarna Produced Brands that Require This Part Number (AYP, Craftsman, Jonsered, McCulloch, Poulan, Poulan Pro, RedMax, Sears, Weed Eater) Please Make Sure to Order For Your Model Spec Serial Not By Looks or Guessing Genuine OEM Husqvarna Part