All parts are guaranteed to the original purchaser against defects in material and workmanship when used under normal conditions for a period of one year from the date of the original consumer purchase. This limited warranty covers defects in material and workmanship under normal use of the product. This limited warranty does not cover loss or theft of product, nor does coverage extend to damage caused by misuse, abuse, negligence, unauthorized modification, improper repairs or maintenance, damage not resulting from defects in material or workmanship, improper installation, or parts installed on vehicles used off-road, for racing purposes, or for commercial purposes. Our obligation under this limited warranty is limited to the replacement of the defective part, at no cost to you, or, at our option, repayment of the purchase price, conditioned in either case upon (a) the return of the part to us with an explanation of the circumstances and conditions under which failure occurred, and (b) a valid proof of purchase of the part. We neither assume nor authorize any other person to assume for us any other liability.