Become a Distributor
Grand Rock Company is a Premium supplier of exhaust parts for the Heavy Duty Truck, Medium Duty Truck, and School Bus market. We are a global company selling our premium exhaust systems world-wide!

Grand Rock products are sold exclusively through wholesalers and distributors. Thinking about becoming a leader in exhaust products? Give us a call and we will set you up with a sales representative in your area. With over 40 sales representatives we will make sure that you get the information and product that you need to increase your exhaust sales. Let us help you today!

Phone 800-321-3674 or E-mail us at sales@grandrock.com for information on the sales professional that covers your area!