Tow Chart

GMC Sierra 2500HD towing capacity

The 2026 GMC Sierra 2500HD is rated for up to 20,000 lbs with a conventional ball hitch, in its best-equipped configuration. Other configurations are rated lower.

2026 GMC Sierra 2500HD, highest published rating20,000 lbsConventional (ball hitch). Most are rated lower, so find yours in the year tables.

Source documents last retrieved October 3, 2026.

Jump to a year

2026 GMC Sierra 2500HD

Highest rating for each engine
EngineConventionalFifth-wheel or gooseneck
6.6L Duramax Turbo-Diesel V820,000 lbs22,390 lbs
Duramax 6.6L Turbo-Diesel V820,000 lbs22,390 lbs
6.6L V8 Gas16,000 lbs18,700 lbs

All 117 2026 Sierra 2500HD configurations, with axle, cab and required equipment

Source: 2026 GM Envolve Fleet Guide; 2026 SIERRA 2500 HD MAX CONVENTIONAL TRAILERING

2025 GMC Sierra 2500HD

Highest rating for each engine
EngineConventionalFifth-wheel or gooseneck
6.6L Duramax Turbo-Diesel V820,000 lbs22,390 lbs

All 20 2025 Sierra 2500HD configurations, with axle, cab and required equipment

Source: 2025 GM Envolve Fleet Guide

2024 GMC Sierra 2500HD

Highest rating for each engine
EngineConventionalFifth-wheel or gooseneck
6.6L Duramax Turbo Diesel V820,000 lbs22,430 lbs
6.6L Gas V816,000 lbs18,700 lbs

All 186 2024 Sierra 2500HD configurations, with axle, cab and required equipment

Source: 2024 GMC Sierra HD Models: Features, Specs and Options

2023 GMC Sierra 2500HD

Highest rating for each engine
EngineConventionalFifth-wheel or gooseneck
6.6L Duramax Turbo Diesel V818,500 lbs18,510 lbs
6.6L Gas V814,500 lbs17,370 lbs

All 124 2023 Sierra 2500HD configurations, with axle, cab and required equipment

Source: 2023 GMC Sierra HD Models: Features, Specs and Options

2022 GMC Sierra 2500HD

Highest rating for each engine
EngineConventionalFifth-wheel or gooseneck
6.6L Duramax Turbo Diesel V818,500 lbs18,510 lbs
6.6L Gasoline V814,500 lbs17,370 lbs

All 70 2022 Sierra 2500HD configurations, with axle, cab and required equipment

Source: 2022 GMC Sierra HD Models: Features, Specs and Options

2021 GMC Sierra 2500HD

Highest rating for each engine
EngineConventionalFifth-wheel or gooseneck
6.6L Duramax Turbo Diesel V818,500 lbs18,510 lbs
6.6L Gas V814,500 lbs17,370 lbs

All 124 2021 Sierra 2500HD configurations, with axle, cab and required equipment

Source: 2021 GMC Trailering Guide

2020 GMC Sierra 2500HD

Highest rating for each engine
EngineConventionalFifth-wheel or gooseneck
DURAMAX TURBO DIESEL18,500 lbs18,510 lbs
6.6L V8 Duramax Turbo Diesel17,970 lbs12,610 lbs
GAS ENGINE14,500 lbs17,370 lbs
6.6L Gas V8 Engine14,500 lbs17,370 lbs

All 114 2020 Sierra 2500HD configurations, with axle, cab and required equipment

Source: 2020 GMC Trailering Guide

2019 GMC Sierra 2500HD

Highest rating for each engine
EngineConventionalFifth-wheel or gooseneck
DURAMAX 6.6L V8 TURBO DIESEL14,500 lbs15,400 lbs
VORTEC 6.0L V814,500 lbs14,500 lbs

All 24 2019 Sierra 2500HD configurations, with axle, cab and required equipment

Source: 2019 GMC Trailering Guide

2018 GMC Sierra 2500HD

Highest rating for each engine
EngineConventionalFifth-wheel or gooseneck
DURAMAX 6.6L V-8 TURBO DIESEL14,500 lbs18,100 lbs
VORTEC 6.0L V-814,500 lbs14,800 lbs

All 48 2018 Sierra 2500HD configurations, with axle, cab and required equipment

Source: 2018 GMC Trailering Guide

2017 GMC Sierra 2500HD

Highest rating for each engine
EngineConventionalFifth-wheel or gooseneck
DURAMAX 6.6L V-8 TURBO DIESEL14,500 lbs18,100 lbs
VORTEC 6.0L V-814,500 lbs14,800 lbs

All 48 2017 Sierra 2500HD configurations, with axle, cab and required equipment

Source: 2017 GMC Trailering Guide

2016 GMC Sierra 2500HD

Highest rating for each engine
EngineConventionalFifth-wheel or gooseneck
DURAMAX 6.6L V-8 TURBO DIESEL14,500 lbs18,000 lbs
VORTEC 6.0L V-814,500 lbs14,800 lbs

All 58 2016 Sierra 2500HD configurations, with axle, cab and required equipment

Source: 2016 GMC Trailering Guide

2015 GMC Sierra 2500HD

Highest rating for each engine
EngineConventionalFifth-wheel or gooseneck
DURAMAX 6.6L V-8 TURBO DIESEL14,500 lbs17,900 lbs
VORTEC 6.0L V-813,000 lbs14,800 lbs

All 52 2015 Sierra 2500HD configurations, with axle, cab and required equipment

Source: 2015 GMC Trailering Guide

Common questions

How has the GMC Sierra 2500HD's towing capacity changed by year?

Highest published rating by model year: 2026: 20,000 lbs; 2025: 20,000 lbs; 2024: 20,000 lbs; 2023: 18,500 lbs; 2022: 18,500 lbs; 2021: 18,500 lbs; 2020: 18,500 lbs; 2019: 14,500 lbs; 2018: 14,500 lbs; 2017: 14,500 lbs; 2016: 14,500 lbs; 2015: 14,500 lbs.

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