Not sure which 2004 Mazda B-Series Tonneau Covers are right for you? We have over 105 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. M. F from Minneapolis, MN said, "Delivery was quick and though we didn't receive the hardware or instructions - your customer service provided that within days. Great job!! I had help putting the cover on. At first the rear door didn't latch securely, but a minor adjustment corrected that. I love it-thanks for a great product! - Myrna"