2020-2021 Chevy & GMC Silverado & Sierra 1500 3.0L Duramax Parts & Accessories

Your 3.0L Duramax Silverado or Sierra 1500 throws down seriously impressive horsepower and torque, but there's even more power and capability hiding within that can be unlocked by Tier One's Silverado or Sierra 1500 performance parts and accessories. We here at Tier One have all the parts and accessories for 2020-2021 Silverado and Sierra 1500 3.0L Duramax trucks to transform your tough Duramax-powered 1500 into a wicked custom build that will handle tough street driving, aggressive off-roading, and hard drag racing use. Tier One offers everything from our own Silverado and Sierra 1500 3.0L Duramax built transmissions and transmission rebuild kits that can handle more power than stock while fixing common 10L80 transmission issues to Silverado and Sierra 1500 3.0L Duramax cold air intakes, Silverado and Sierra 1500 3.0L Duramax tuners, Silverado and Sierra 1500 3.0L Duramax exhaust kits, Silverado and Sierra 1500 leveling kits, Silverado and Sierra 1500 lift kits, and a whole ton more. If you're not seeing something you need, contact Tier One or call 602-399-5484!