General Motors has issued a new satisfaction recall for a transfer case leak on the Chevy Silverado MD.
A “satisfaction recall” is not technically a recall as per the National Highway Traffic Safety Administration (NHTSA), but rather, is more of a Technical Service Bulletin (TSB).
The new satisfaction recall is for the 2019 Chevy Silverado MD, specifically certain 4500 HD models. Affected models may have a condition wherein the transfer case fluid can leak below the front input shaft bearing retainer, or at the idler pulley bearing retainer.
To correct the issue, dealers are informed to inspect the vehicle, and if necessary, replace two o-rings on the transfer case. Replacement parts needed include the two o-rings, as well as 40W full-synthetic oil per the appropriate spec. Approximately 616 Chevy Silverado MD vehicles will require the parts to be replaced.
As a reminder, General Motors introduced the Chevy Silverado MD (4500 HD, 5500 HD, and 6500 HD) in 2018 as a successor to the Chevrolet Kodiak, which was discontinued in 2009. Produced via a joint venture with Navistar International at Navistar’s production facility in Springfield, Ohio, sales for the Chevy Silverado MD first launched for the 2019 model year late in the 2018 calendar year, with the lineup serving as a platform for a wide variety of applications, most of which are commercial. These include emergency services, dump trucks, flatbed trucks, towing, and cargo hauling.
Providing motivation is the 6.6L V8 L5D turbodiesel Duramax engine, which produces 350 horsepower at 2,700 rpm and 700 pound-feet of torque at 1,600 rpm. Output is harnessed by an Allison transmission.
The latest 2021 Chevy Silverado MD truck lineup includes a few minor changes and updates, as we have covered previously. Check out our full change log for more detailed information, and don’t forget to subscribe to GM Authority for more Chevrolet Silverado news, Chevrolet news, and around-the-clock GM news coverage.