2026 GMC Sierra 3500 HD Towing Capacity

Compare the ratings published for this model year, then match engine, cab, bed, drivetrain, axle ratio, and listed equipment to the truck.

View full comparison chart Review every configuration and published tow type → Browse Sierra 3500 HD years Return to the available model years →

41 configuration groups · 71 published rating outcomes

Published Max
36,000 LBS
Rating Groups
41
Equipment Checks
14
ENGINE GROUPS

Published Ratings by Engine

Your engine determines your base towing limit. Start here to see the 2026 ratings for your specific Sierra 3500 HD configuration.

8 groups retain more than one published candidate; no candidate is selected as a fallback.

Duramax 6.6L Turbo-Diesel V8 24 configuration groups
Range: 20,000–36,000 lbs
Published max 36,000 LBS
6.6L V8 Gas 17 configuration groups
Range: 14,500–20,000 lbs
Published max 20,000 LBS
2026 Sierra 3500 HD towing chart
Engine group

Duramax 6.6L Turbo-Diesel V8

20,000–36,000 lbs

Towing Capacity Chart

Duramax 6.6L Turbo-Diesel V8 configurations

24 groups 13 exact 11 equipment-conditioned 20,000 to 36,000 lbs published
Crew Cab / Long Bed / 2WD DRW / DRW Duramax 6.6L Turbo-Diesel V8 Not listed
Conventional: 20,000 lbsFifth-wheel / gooseneck (combined by GMC): 31,440 lbs
40,000 lbs40,000 lbs
No additional row condition listed p.1 / p.2 Exact
Crew Cab / Long Bed / 2WD / SRW Duramax 6.6L Turbo-Diesel V8 Not listed
Fifth-wheel / gooseneck (combined by GMC): 22,070 lbs
30,300 lbs
No additional row condition listed p.2 Exact
Crew Cab / Long Bed / 4x4 / SRW Duramax 6.6L Turbo-Diesel V8 Not listed
Fifth-wheel / gooseneck (combined by GMC): 21,200 lbs
30,000 lbs
AT4 maximum trailer rating. p.2 Equipment check
Crew Cab / Long Bed / 4x4 DRW / DRW Duramax 6.6L Turbo-Diesel V8 Not listed
Fifth-wheel / gooseneck (combined by GMC): 30,800 lbs
40,000 lbs
Denali maximum trailer rating. p.2 Equipment check
Crew Cab / Long Bed / 4x4 / SRW Duramax 6.6L Turbo-Diesel V8 Not listed
Fifth-wheel / gooseneck (combined by GMC): 21,100 lbs
30,000 lbs
Denali maximum trailer rating. p.2 Equipment check
Crew Cab / Long Bed / 4x4 DRW / DRW Duramax 6.6L Turbo-Diesel V8 Not listed
Fifth-wheel / gooseneck (combined by GMC): 30,700 lbs
40,000 lbs
Denali Ultimate maximum trailer rating. p.2 Equipment check
Crew Cab / Long Bed / 4x4 / SRW Duramax 6.6L Turbo-Diesel V8 Not listed
Fifth-wheel / gooseneck (combined by GMC): 21,000 lbs
30,000 lbs
Denali Ultimate maximum trailer rating. p.2 Equipment check
Crew Cab / Long Bed / 4WD DRW / DRW Duramax 6.6L Turbo-Diesel V8 Not listed
Conventional: 20,000 lbsFifth-wheel / gooseneck (combined by GMC): 31,000 lbs
40,000 lbs40,000 lbs
No additional row condition listed p.1 / p.2 Exact
Crew Cab / Long Bed / 4x4 / SRW Duramax 6.6L Turbo-Diesel V8 Not listed
Fifth-wheel / gooseneck (combined by GMC): 21,460 lbs
30,000 lbs
No additional row condition listed p.2 Exact
Double Cab / Long Bed / 2WD DRW / DRW Duramax 6.6L Turbo-Diesel V8 Not listed
Conventional: 20,000 lbsFifth-wheel / gooseneck (combined by GMC): 31,580 lbs
40,000 lbs40,000 lbs
No additional row condition listed p.1 / p.2 Exact
Double Cab / Long Bed / 2WD / SRW Duramax 6.6L Turbo-Diesel V8 Not listed
Fifth-wheel / gooseneck (combined by GMC): 21,900 lbs
30,000 lbs
No additional row condition listed p.2 Exact
Double Cab / Long Bed / 4WD DRW / DRW Duramax 6.6L Turbo-Diesel V8 Not listed
Conventional: 20,000 lbsFifth-wheel / gooseneck (combined by GMC): 31,270 lbs
40,000 lbs40,000 lbs
No additional row condition listed p.1 / p.2 Exact
Double Cab / Long Bed / 4x4 / SRW Duramax 6.6L Turbo-Diesel V8 Not listed
Fifth-wheel / gooseneck (combined by GMC): 21,590 lbs
30,000 lbs
No additional row condition listed p.2 Exact
Regular Cab / Long Bed / 2WD DRW / DRW Duramax 6.6L Turbo-Diesel V8 Not listed
Fifth-wheel / gooseneck (combined by GMC): 32,000 lbsFifth-wheel / gooseneck (combined by GMC): 32,000 lbs
43,500 lbs43,900 lbs
Maximum available Fifth Wheel Hitch Rating. Requires available Max Trailering Package. p.2 Equipment check
Regular Cab / Long Bed / 2WD DRW / DRW Duramax 6.6L Turbo-Diesel V8 Not listed
Fifth-wheel / gooseneck (combined by GMC): 35,500 lbsFifth-wheel / gooseneck (combined by GMC): 36,000 lbs
43,500 lbs43,900 lbs
Maximum available Gooseneck Trailer Rating. Requires available Max Trailering Package. p.2 Equipment check
Regular Cab / Long Bed / 2WD DRW / DRW Duramax 6.6L Turbo-Diesel V8 Not listed
Conventional: 20,000 lbsConventional: 20,000 lbs
43,500 lbs43,900 lbs
Requires available Max Trailering Package. p.1 Equipment check
Regular Cab / Long Bed / 2WD / SRW Duramax 6.6L Turbo-Diesel V8 Not listed
Fifth-wheel / gooseneck (combined by GMC): 22,420 lbs
30,000 lbs
No additional row condition listed p.2 Exact
Regular Cab / Long Bed / 4x4DRW / DRW Duramax 6.6L Turbo-Diesel V8 Not listed
Conventional: 20,000 lbsFifth-wheel / gooseneck (combined by GMC): 31,500 lbs
40,000 lbs40,000 lbs
No additional row condition listed p.1 / p.2 Exact
Regular Cab / Long Bed / 4x4 / SRW Duramax 6.6L Turbo-Diesel V8 Not listed
Fifth-wheel / gooseneck (combined by GMC): 22,040 lbs
30,000 lbs
No additional row condition listed p.2 Exact
Crew Cab / Standard Bed / 2WD / SRW Duramax 6.6L Turbo-Diesel V8 Not listed
Fifth-wheel / gooseneck (combined by GMC): 21,900 lbs
30,000 lbs
No additional row condition listed p.2 Exact
Crew Cab / Standard Bed / 4x4 / SRW Duramax 6.6L Turbo-Diesel V8 Not listed
Fifth-wheel / gooseneck (combined by GMC): 21,300 lbs
30,000 lbs
AT4 maximum trailer rating. p.2 Equipment check
Crew Cab / Standard Bed / 4x4 / SRW Duramax 6.6L Turbo-Diesel V8 Not listed
Fifth-wheel / gooseneck (combined by GMC): 21,200 lbs
30,000 lbs
Denali maximum trailer rating. p.2 Equipment check
Crew Cab / Standard Bed / 4x4 / SRW Duramax 6.6L Turbo-Diesel V8 Not listed
Fifth-wheel / gooseneck (combined by GMC): 21,100 lbs
30,000 lbs
Denali Ultimate maximum trailer rating. p.2 Equipment check
Crew Cab / Standard Bed / 4x4 / SRW Duramax 6.6L Turbo-Diesel V8 Not listed
Fifth-wheel / gooseneck (combined by GMC): 21,600 lbs
30,000 lbs
No additional row condition listed p.2 Exact
Engine group

6.6L V8 Gas

14,500–20,000 lbs

Towing Capacity Chart

6.6L V8 Gas configurations

17 groups 6 exact 3 equipment-conditioned 8 unresolved 14,500 to 20,000 lbs published
Crew Cab / Long Bed / 2WD DRW / DRW 6.6L V8 Gas Not listed
Conventional: 18,200 lbsFifth-wheel / gooseneck (combined by GMC): 18,230 lbs
26,000 lbs26,000 lbs
No additional row condition listed p.1 / p.2 Exact
Crew Cab / Long Bed / 2WD / SRW 6.6L V8 Gas Not listed
Conventional: 16,000 lbsConventional: 20,000 lbsFifth-wheel / gooseneck (combined by GMC): 18,510 lbs
26,000 lbs30,300 lbs26,000 lbs
No additional row condition listed p.1 / p.2 Multiple candidates
Crew Cab / Long Bed / 4x4 / SRW 6.6L V8 Gas Not listed
Fifth-wheel / gooseneck (combined by GMC): 17,800 lbs
26,000 lbs
AT4 maximum trailer rating. Denali maximum trailer rating. p.2 Equipment check
Crew Cab / Long Bed / 4x4 DRW / DRW 6.6L V8 Gas Not listed
Fifth-wheel / gooseneck (combined by GMC): 17,500 lbs
26,000 lbs
Denali maximum trailer rating. p.2 Equipment check
Crew Cab / Long Bed / 4WD DRW / DRW 6.6L V8 Gas Not listed
Conventional: 17,800 lbsFifth-wheel / gooseneck (combined by GMC): 17,800 lbs
26,000 lbs26,000 lbs
No additional row condition listed p.1 / p.2 Exact
Crew Cab / Long Bed / 4WD / SRW 6.6L V8 Gas Not listed
Conventional: 16,000 lbsConventional: 20,000 lbsFifth-wheel / gooseneck (combined by GMC): 18,230 lbs
26,000 lbs30,000 lbs26,000 lbs
No additional row condition listed p.1 / p.2 Multiple candidates
Double Cab / Long Bed / 2WD DRW / DRW 6.6L V8 Gas Not listed
Conventional: 18,300 lbsFifth-wheel / gooseneck (combined by GMC): 18,300 lbs
26,000 lbs26,000 lbs
No additional row condition listed p.1 / p.2 Exact
Double Cab / Long Bed / 2WD / SRW 6.6L V8 Gas Not listed
Conventional: 16,000 lbsConventional: 20,000 lbsFifth-wheel / gooseneck (combined by GMC): 18,620 lbs
26,000 lbs30,000 lbs26,000 lbs
No additional row condition listed p.1 / p.2 Multiple candidates
Double Cab / Long Bed / 4WD DRW / DRW 6.6L V8 Gas Not listed
Conventional: 18,000 lbsFifth-wheel / gooseneck (combined by GMC): 17,990 lbs
26,000 lbs26,000 lbs
No additional row condition listed p.1 / p.2 Exact
Double Cab / Long Bed / 4WD / SRW 6.6L V8 Gas Not listed
Conventional: 16,000 lbsConventional: 20,000 lbsFifth-wheel / gooseneck (combined by GMC): 18,310 lbs
26,000 lbs30,000 lbs26,000 lbs
No additional row condition listed p.1 / p.2 Multiple candidates
Regular Cab / Long Bed / 2WD DRW / DRW 6.6L V8 Gas Not listed
Conventional: 18,700 lbsFifth-wheel / gooseneck (combined by GMC): 18,760 lbs
26,000 lbs26,000 lbs
No additional row condition listed p.1 / p.2 Exact
Regular Cab / Long Bed / 2WD / SRW 6.6L V8 Gas Not listed
Conventional: 14,500 lbsConventional: 14,500 lbsFifth-wheel / gooseneck (combined by GMC): 19,080 lbs
26,000 lbs30,000 lbs26,000 lbs
No additional row condition listed p.1 / p.2 Multiple candidates
Regular Cab / Long Bed / 4x4DRW / DRW 6.6L V8 Gas Not listed
Conventional: 18,400 lbsFifth-wheel / gooseneck (combined by GMC): 18,380 lbs
26,000 lbs26,000 lbs
No additional row condition listed p.1 / p.2 Exact
Regular Cab / Long Bed / 4WD / SRW 6.6L V8 Gas Not listed
Conventional: 14,500 lbsConventional: 14,500 lbsFifth-wheel / gooseneck (combined by GMC): 18,700 lbs
26,000 lbs30,000 lbs26,000 lbs
No additional row condition listed p.1 / p.2 Multiple candidates
Crew Cab / Standard Bed / 2WD / SRW 6.6L V8 Gas Not listed
Conventional: 16,000 lbsConventional: 20,000 lbsFifth-wheel / gooseneck (combined by GMC): 18,650 lbs
26,000 lbs30,000 lbs26,000 lbs
No additional row condition listed p.1 / p.2 Multiple candidates
Crew Cab / Standard Bed / 4x4 / SRW 6.6L V8 Gas Not listed
Fifth-wheel / gooseneck (combined by GMC): 17,900 lbs
26,000 lbs
AT4 maximum trailer rating. Denali maximum trailer rating. p.2 Equipment check
Crew Cab / Standard Bed / 4WD / SRW 6.6L V8 Gas Not listed
Conventional: 16,000 lbsConventional: 20,000 lbsFifth-wheel / gooseneck (combined by GMC): 18,300 lbs
26,000 lbs30,000 lbs26,000 lbs
No additional row condition listed p.1 / p.2 Multiple candidates
Ratings

Tow types stay separate

Conventional, fifth-wheel, and gooseneck values are shown as distinct outcomes when GMC publishes more than one for a configuration.

Truck check

Equipment conditions stay visible

A condition attached to a rating remains part of the answer. It is not treated as an optional note.

Guide

Use the matching owner manual

Vehicle-wide towing guidance is not inferred from another GMC model or model year. Confirm it in the manual for this truck.

Technical Audit

Data sources

These citations identify the GMC trailering-guide pages used for the 2026 Sierra 3500 HD chart ratings.

Show source pages for the 2026 guide
DOC_ID: 2026-GMC DOCUMENT BASIS

2026-GMC-Sierra-3500-Trailering-Chart

Audit Scope PAGES: 1-2