Compatibility Enhanced: Perfectly fits for two-stage snow blowers including models 588077501, 585511801, and more. These shear pins are also compatible with for and for models, ensuring wide-ranging use and reliability for harsh winter conditions. Comprehensive Replacement Numbers: These shear pins are designed as replacements for multiple part numbers including 580790401, 588077502, and 539976978. This ensures you can find the right fit for your specific snow blower model without hassle. Robust Construction: Crafted from materials, these shear pins are engineered to withstand extreme conditions. They provide a precise fit and are built to protect your snow blower's gears from damage, ensuring long-lasting performance. Easy Installation: Installing these shear bolts is straightforward and quick, minimizing downtime. They are specifically designed to break under stress to protect the engine and auger from severe damage, making them an essential part of snow blower maintenance. Color: Silver Material: Metal Package Contents: 6 x plugs Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.