How much transmission fluid does a 2019 Chevrolet Silverado 3500HD take?

10.5 quarts as a total fill for the 6L90 transmission (10.5 to 12.7 quarts across this year's engines). A drain-and-refill without removing the pan replaces roughly a third to half of that, so refill to the level check point rather than pouring in the whole figure.

What transmission fluid does a 2019 Chevrolet Silverado 3500HD use?

The source lists only a catalog code for this year, not the OEM specification, so use the fluid named in your owner's manual or on the dipstick.

What brake fluid does a 2019 Chevrolet Silverado 3500HD take?

Check the brake fluid reservoir cap - it states the DOT grade. DOT 3 and DOT 4 can be mixed; DOT 5 silicone fluid cannot.

2019 Chevrolet Silverado 3500HD transmission fluid capacity and fluid specs

GarageDex's fluid data shows the 2019 Chevrolet Silverado 3500HD (6.0L 8-cyl) uses the 6L90 automatic transmission, which holds 10.5 quarts of fluid as a total fill. Other engines on this year hold 10.5 to 12.7 quarts - see the table.

Shop transmission fluid Match the specification on the bottle to your manual

Key takeaways

Transmission: 6L90 automatic transmission, 10.5 qt total fill.
Total fill is the whole system; a drain-and-refill takes a third to half.
Brake fluid grade: read it off the reservoir cap.
Fluid specification is not named by the source - use the owner's manual.

2019 Chevrolet Silverado 3500HD fluids by engine
Engine	Transmission	Total fill	Fluid spec	Brake fluid	Gear oil
6.0L 8-cyl	6L90 automatic	10.5 qt	per owner's manual	see reservoir cap	-
6.0L 8-cyl	6L90 automatic	10.5 qt	per owner's manual	see reservoir cap	rear 2.75 qt front 1.9 qt
6.0L 8-cyl	6L90 automatic	12.4 qt	per owner's manual	see reservoir cap	rear 2.75 qt front 1.9 qt transfer case 1.6 qt
6.0L 8-cyl	6L90 automatic	12.4 qt	per owner's manual	see reservoir cap	rear 2.75 qt front 1.9 qt transfer case 1.6 qt
6.0L 8-cyl	6L90 automatic	12.4 qt	per owner's manual	see reservoir cap	rear 2.75 qt front 1.9 qt transfer case 1.6 qt
6.6L 8-cyl	1000 automatic	12.7 qt	per owner's manual	see reservoir cap	rear 3.15 qt front 1.85 qt transfer case 1.6 qt

Fluids for the 2019 Chevrolet Silverado 3500HD

Buy fluid that states the specification your manual names. Multi-vehicle fluids list the specs they meet on the back label - if yours is not listed, it is the wrong bottle.

Transmission fluidYou need about 11 quarts for a full fillShop fluid DOT 3 or DOT 4 brake fluidA quart covers a full flushShop brake fluid Fluid transfer pumpMost modern transmissions have no dipstick tube - you fill from belowShop pumps

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Other 2019 Chevrolet Silverado 3500HD specs

All specs Engine oil Coolant capacity Maintenance schedule

Other Silverado 3500HD years

2026 2025 2024 2023 2022 2021 2020

Source: AMSOIL Auto & Light Truck lookup. Capacities are total system fills; a drain-and-refill takes less. Where no fluid specification is shown, the source lists only a catalog code, so use the specification printed in your owner's manual - the wrong transmission fluid damages a transmission.