2017-2019 Chevy GMC Silverado Sierra HD Auto Trans Cooler Inlet Tube OEM
Keep your 2017–2019 Chevrolet Silverado 2500 HD, Silverado 3500 HD, GMC Sierra 2500 HD, or Sierra 3500 HD running at peak transmission temperature with this OEM Auto Trans Cooler Inlet Tube. Designed specifically for trucks equipped with the 6.6L V8 Duramax Diesel engine, this inlet pipe fits High Country, LT, LTZ, and WT trims on Silverado models, and Base, Denali, SLE, and SLT trims on Sierra models.
This is a Genuine OEM GM part, manufactured to factory specifications for a precise, plug-and-play fit with no modifications required. The Auto Trans Cooler Inlet Tube routes transmission fluid to the cooler, maintaining proper fluid temperature and protecting your transmission under heavy-duty use. It is a direct replacement for the original inlet pipe on all applicable 6.6L Duramax Diesel applications.
Quick Part Facts
- Part Name: Auto Trans Cooler Tube — Inlet Pipe
- Brand: Genuine OEM GM (ACDelco)
- Engine: 6.6L V8 Diesel (Duramax)
- Condition: New
Fitment Chart
| Year | Make | Model | Trim / Engine |
|---|---|---|---|
| 2019 | Chevrolet | Silverado 2500 HD | High Country, LT, LTZ, WT | 6.6L V8 Diesel |
| 2019 | Chevrolet | Silverado 3500 HD | High Country, LT, LTZ, WT | 6.6L V8 Diesel |
| 2019 | GMC | Sierra 2500 HD | Base, Denali, SLE, SLT | 6.6L V8 Diesel |
| 2019 | GMC | Sierra 3500 HD | Base, Denali, SLE, SLT | 6.6L V8 Diesel |
| 2018 | Chevrolet | Silverado 2500 HD | High Country, LT, LTZ, WT | 6.6L V8 Diesel |
| 2018 | Chevrolet | Silverado 3500 HD | High Country, LT, LTZ, WT | 6.6L V8 Diesel |
| 2018 | GMC | Sierra 2500 HD | Base, Denali, SLE, SLT | 6.6L V8 Diesel |
| 2018 | GMC | Sierra 3500 HD | Base, Denali, SLE, SLT | 6.6L V8 Diesel |
| 2017 | Chevrolet | Silverado 2500 HD | High Country, LT, LTZ, WT | 6.6L V8 Diesel |
| 2017 | Chevrolet | Silverado 3500 HD | High Country, LT, LTZ, WT | 6.6L V8 Diesel |
| 2017 | GMC | Sierra 2500 HD | Base, Denali, SLE, SLT | 6.6L V8 Diesel |
| 2017 | GMC | Sierra 3500 HD | Base, Denali, SLE, SLT | 6.6L V8 Diesel |



