How much coolant does a 2019 Sierra 1500 take?
Gasoline: 2.7L 12.5 qt, 4.3L 12.3 qt, 5.3L L82 13.1 qt, 5.3L L84 13.3 qt, 6.2L 13.8 qt.
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In-depth guide
2019 GMC Sierra 1500
2019 Sierra 1500 gasoline coolant is 12.5 qt on the 2.7L, 12.3 qt on the 4.3L, 13.1 qt on the 5.3L L82, 13.3 qt on the 5.3L L84, and 13.8 qt on the 6.2L.
| Item | Figure |
|---|---|
| 2.7L L4 | 11.8 L (12.5 qt). |
| 4.3L V6 | 11.6 L (12.3 qt). |
| 5.3L L82 | 12.4 L (13.1 qt). |
| 5.3L L84 | 12.6 L (13.3 qt). |
| 6.2L | 13.1 L (13.8 qt). |
| Mix and life | 50/50 clean, drinkable water and DEX-COOL, GMW3420. Designed to remain 5 years or 150,000 miles (240,000 km), whichever comes first. |
Source: owner's manual / last verified 2026-10-16 (2019 GMC Sierra/Sierra Denali owner's manual, part number 23400205 A, First Printing. Gasoline pages. The book says a diesel engine uses the separate Duramax supplement. (opens in a new tab)).
Difficulty, time, and cost are estimates when this guide gives them. Torque is a cited figure, or it is left off.
Main source: 2019 GMC Sierra/Sierra Denali owner's manual, part number 23400205 A, First Printing. Gasoline pages. The book says a diesel engine uses the separate Duramax supplement. (opens in a new tab), General Motors, published 2019-01-01, read 2026-10-16.
| Item | Figure | Where it comes from |
|---|---|---|
| 2.7L L4 | 11.8 L (12.5 qt). | Capacities and specifications |
| 4.3L V6 | 11.6 L (12.3 qt). | Capacities and specifications |
| 5.3L L82 | 12.4 L (13.1 qt). | Capacities and specifications |
| 5.3L L84 | 12.6 L (13.3 qt). | Capacities and specifications |
| 6.2L | 13.1 L (13.8 qt). | Capacities and specifications |
| Mix and life | 50/50 clean, drinkable water and DEX-COOL, GMW3420. Designed to remain 5 years or 150,000 miles (240,000 km), whichever comes first. | Cooling system |
The five gasoline capacities are not interchangeable.
Clean, drinkable water only.
This page does not quote it.
The mix is 50/50 clean drinkable water and DEX-COOL. The cooling section says this coolant is designed to remain for 5 years or 150,000 miles, whichever comes first. A diesel uses the Duramax supplement, not these rows. Oil is on the oil guide.
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Part
DEX-COOL coolant
50/50 with clean drinkable water. Capacity depends on the gasoline engine.
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Gasoline: 2.7L 12.5 qt, 4.3L 12.3 qt, 5.3L L82 13.1 qt, 5.3L L84 13.3 qt, 6.2L 13.8 qt.
The cooling section says 5 years or 150,000 miles, whichever comes first.
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