For the cost of shipping your item please add the item into the shopping cart. Once the part is in the cart fill out address information in the cart under the Shipping area in the Summary section. Our system will then calculate the shipping fee based on your location and the weight of the product. This is all done before you are asked to provide payment information.
North Shore Commercial Door has the LiftMaster K20-3050B-4P-H24 (Also known as K20-3033B-4P-H24, 20-3050B-4P) Motor Replacement. This item is compatible with 1/2HP Trolley Operator models T503L5.