GRAND ROCK CO is a 30 year young manufacturer of Diesel Truck exhaust systems. We are housed in a modern 53,000 sq ft building just east of Cleveland, OH. We fabricate from 3 to 7" dia tubing in plain, aluminized and chrome, we also can powder and ceramic coat parts if needed. We custom make to... Read More
Replacing your old OE pipe can be expensive! Search Grand Rock's extensive inventory pf replacement parts and find the part you need for any major brand OE system. New truck, old truck or custom truck, We have what you need. Read more »
Do you need to replace your exhaust system or repair a leak before inspection? Do you have an end of the school year maintenance project? Grand Rock has an extensive line of bus exhaust parts, giving you the assurance you need that the parts will exceed your expectations and arrive when you... Read more »
For class 4-6 trucks, Grand Rock has introduced a line of exhaust components covering popular Chevy/GMC, Ford, Freightliner, International, and Kenworth applications. Read more »