Hi, there! Thank you for asking about the Kohler GP30166 valve service kit. Unfortunately, we couldn’t find any information about the installation manual or video for this kit. We have contacted the manufacturer and hope to hear from them soon. Please check back in with us at a later time, or leave your Email address below and we can contact you as soon as we have the answer. For further questions, please contact one of our knowledgeable customer service representatives @ 435-868-4020 between 8:00 am and 7:00 pm MST or through e-mail at support@plumbersstock.com. Thank you for choosing PlumbersStock!