2020-2021 Silverado & Sierra 1500 3.0L Duramax Torque Converters

The stock torque converter in your 2020-2021 Silverado or Sierra 3.0L Duramax is a stamped steel unit that can flex under heavy load, leading to sluggish performance and potential failure. Tier One offers high-performance 10L80 torque converters that feature billet steel covers and CNC-machined billet stators. These heavy-duty converters eliminate flex and ballooning, ensuring that all your diesel torque gets to the wheels efficiently. Whether you need a confident towing converter or a performance unit for a tuned build, we have the upgrade you need. If your converter has already failed and damaged your pump, you may need to swap the whole unit with one of our 2020-2021 Chevy & GMC 1500 3.0L Duramax Complete Transmissions. Converters generate heat, so keep that heat from cooking your fluid with one of our 2020-2021 Chevy & GMC 1500 3.0L Duramax Transmission Coolers. These converters pair perfectly with our 2020-2021 Chevy & GMC 1500 3.0L Duramax Valve Bodies for crisp shifts and improved holding power. Don't forget to grab a new pan or dipstick from our 2020-2021 Chevy & GMC 1500 3.0L Duramax Transmission Parts.