2026 GMC Sierra 2500 HDDuramax 6.6L V8 Turbo-DieselCrew Cab · Long Bed · 2WD · 26,000 lb GCWR · 17,800 lb trailer
Bring these reference values into your own load sheet. Your vehicle labels and actual loading complete the picture.
Match the complete configuration
- Transmission
- Not confirmed
- Wheelbase
- Not confirmed
- Trim
- Not specified; verify exclusions
Required equipment and applicability
- Conventional ball-hitch trailer only; this record does not describe fifth-wheel or gooseneck towing.
- Published maximum is for the listed, properly equipped configuration. Passengers, cargo, accessories and options can reduce the trailer mass the actual vehicle can accommodate.
- Confirm the actual vehicle trailering label, required equipment and owner-manual instructions before applying this row. Vehicle-specific payload, axle and hitch-component limits remain separate.
Exclusions
- AT4X AEV Edition has a separately footnoted rating.
Weight carrying and weight distribution
Exact installed component limits are not established by this table. Read the equipment labels and model-specific hitch instructions.
Trailer limit: Check your installed component label. Tongue limit: Check your installed component label.
No numerical installed component capacity or weight-distribution threshold inferred from the towing maximum.
Trailer limit: Check your installed component label. Tongue limit: Check your installed component label.
Weight distribution does not raise factory ratings. Axle loads and vehicle mass in the adjusted state require measurements. Receiver, ball mount, ball, and coupler must each be checked.
Fact provenance
Gross combined weight rating · 26,000 lb lb
2026 GMC Sierra 2500 HD Trailering Chart · 1 · Sierra 2500 HD conventional trailer-weight ratings — GCWR
Revision: 2026-gmc-sierra-2500-trailering-charts.pdf; no printed revision. Reviewed: 2026-09-22. Status: verified. Scope: 2026; GMC; Sierra 2500 HD; Duramax 6.6L V8 Turbo-Diesel; Crew Cab; Long Bed; 2WD.
- Conventional ball-hitch trailer only; this record does not describe fifth-wheel or gooseneck towing.
- Published maximum is for the listed, properly equipped configuration. Passengers, cargo, accessories and options can reduce the trailer mass the actual vehicle can accommodate.
- Confirm the actual vehicle trailering label, required equipment and owner-manual instructions before applying this row. Vehicle-specific payload, axle and hitch-component limits remain separate.
Published trailer rating · 17,800 lb lb
2026 GMC Sierra 2500 HD Trailering Chart · 1 · Sierra 2500 HD conventional trailer-weight ratings — maximum conventional trailer mass
Revision: 2026-gmc-sierra-2500-trailering-charts.pdf; no printed revision. Reviewed: 2026-09-22. Status: verified. Scope: 2026; GMC; Sierra 2500 HD; Duramax 6.6L V8 Turbo-Diesel; Crew Cab; Long Bed; 2WD.
- Conventional ball-hitch trailer only; this record does not describe fifth-wheel or gooseneck towing.
- Published maximum is for the listed, properly equipped configuration. Passengers, cargo, accessories and options can reduce the trailer mass the actual vehicle can accommodate.
- Confirm the actual vehicle trailering label, required equipment and owner-manual instructions before applying this row. Vehicle-specific payload, axle and hitch-component limits remain separate.
Other source rows, different limits.
These configurations have different published numbers. Match all equipment conditions before comparing.
| Configuration | Body / wheelbase | Drive / axle | GCWR (lb) | Trailer rating (lb) |
|---|---|---|---|---|
| 6.6L V8 gas 18- or 20-inch wheels | Crew Cab Long Bed | 2WD Axle ratio unknown | 26,000 11,793 kg | 16,000 7,257 kg |
| 6.6L V8 gas See equipment conditions | Crew Cab Long Bed | 2WD Axle ratio unknown | 24,500 11,113 kg | 14,500 6,577 kg |
| 6.6L V8 gas 18- or 20-inch wheels | Crew Cab Long Bed | 4WD Axle ratio unknown | 26,000 11,793 kg | 16,000 7,257 kg |