Replace worn equipment with the MTD Genuine Parts 42 in. Lawn Mower Deck Drive Belt. MTD belts are designed and tested to consistently meet original performance standards. Their high-strength tensile cords and specially engineered materials combine to allow the MTD drive belt to resist wear and provide superior durability. The only way to ensure the best performance of your power equipment is to use genuine parts, accessories and attachments. We design and engineer these quality parts to exacting standards to provide reliability, safety and top performance. To protect your investment, specify and use only Genuine Parts.