2022 GMC Sierra Limited AT4 Gets Standard 3.0L Turbo-Diesel Engine

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The 2022 GMC Sierra 1500 Limited will come standard with the GM 3.0L LM2 inline-six turbo-diesel engine when ordered in the AT4 trim level, GM Authority can confirm.

For the 2021MY, the GMC Sierra 1500 AT4 comes standard with the 5.3L L84 V8 engine, with the 6.2L L87 V8 and 3.0L LM2 inline-six offered as optional equipment. However, this will change with the introduction of the carryover 2022 GMC Sierra 1500 Limited model, with the off-road-focused AT4 trim set to come standard with the 3.0L diesel motor. Customers will also be able to order the AT4 trim level with the 6.2L L87 V8 engine for a small price premium.

The mid-cycle-update version of the GMC Sierra 1500 was originally set to arrive for the 2022MY, however various setbacks forced GM to delay the revised model’s arrival. GM will sell a GMC Sierra 1500 Limited model in its place, which will carry over almost every aspect of the 2021 model, including trims and most available options and features. With the GMC Sierra 1500 Limited set to serve as a stop-gap to the updated model, the actual refreshed GMC Sierra 1500 will be sold as a late 2022 model-year product.

While there are limited changes in store for the 2022 GMC Sierra 1500, the model will introduce a more off-road-focused version of the AT4 trim called the AT4-X. The new 2022 GMC Sierra AT4-X will slot in above the standard AT4 trim level and will feature additional off-road equipment for added capability.

The 2022 GMC Sierra 1500 Limited in both the Regular Cab and Crew Cab body configuration will enter production at the GM Silao Plant in Mexico on September 20th, 2021. Production of the Regular Cab model at the GM Fort Wayne Assembly plant in Indiana will begin just one week later on September 27th, 2021.

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