Gy20852 Mulching Mower Blades Fit For John Dee Re 48" Cut Deck, Gx21784, 3 Pack Product Details ?Replace Part Numbers?The mower blades replace for John Dee re JD GY20852, AM141035, GX21784, GX21785, AM137757. Please verify the original part number and ensure that this part fits your model before making a purchase. ?Compatible Models?The mulching blades compatible with John Dee re JD 48" mower decks: LA130 LA140 LA145 LA155 LA165; 145 155C D140 D150 D155 D160; X140 X165 Z245 Z255 Z355E Z355; S140 S160 S170 X140 X165 X166 X167 E140 E150 E160 E170. ?Easy to Install?Install the replacement blades with 7 Point Star center holes by placing the curved side towards the deck, ensuring optimal flow of the cuttings. ?Premium Quality Materials?Crafted from durable carbon steel and enhanced with an additional coating, our riding mower blades are specifically designed for tackling tall grass and dense vegetation in your yard. The razor-sharp blade ensures a seamless and uniform cutting experience. Upgrade your old, stuck blades with our mower blades today and enjoy a completely revitalized lawn mowing experience! ?Blade Specifications?3GY20852 Mower Blades. Length 17 1/8", Width 2 1/2", Thickness 1/6", Center Hole: 7 Point Star. Please verify the blade part number and spindle pattern before placing your order. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.