If the 8th digit of your VIN is “T”, your vehicle has the LM2 Duramax and this part is correct. 2020–2022 Chevrolet Silverado 1500 (3.0L LM2 Duramax). 2020–2022 GMC Sierra 1500 (3.0L LM2 Duramax). 2021–2025 Chevrolet Tahoe / Suburban (3.0L LM2 Duramax).