Canadian Diesel Online has all the aftermarket diesel parts you need to get the most out of your truck or fleet. Our team offers over 20 years of firsthand experience with equipment, accessories, and diesel performance parts. We love seeing a truck perform at optimal capacity and are happy to help answer any questions you have about diesel truck parts. Whether you?re looking for a cold air intake, injector pressure regulator, turbo downpipe, new performance chip, or another diesel truck part, we?ve got it.