2003 GMC Sierra 1500 Towing Capacity & Tow Rating

The table below lists every trim of the 2003 GMC Sierra 1500 with the engine, drivetrain, axle ratio, horsepower, torque, GVWR, curb weight, and payload that go with that trim's headline tow rating. Manufacturers often publish more than one tow figure per truck — a conventional bumper-hitch rating, a weight-distributing rating, and a gooseneck or fifth-wheel rating — so the highest number here is the maximum across all hitch classes the source carries for the trim.

Per-trim breakdown

Configuration	Engine	HP	Torque	Axle	Tow (lb)	GVWR	Curb	Payload
Work Truck 4x2 Regular Cab 8 ft. box 133 in. WB	—	200	260	3.42	8,300	6,400	4,227	2,173
Base 4x2 Regular Cab 6.5 ft. box 119 in. WB	—	200	260	3.42	8,400	6,100	4,142	1,958
SLE 4x2 Regular Cab 6.5 ft. box 119 in. WB	—	270	285	3.42	8,400	6,100	4,142	1,958
Base 4x2 Regular Cab 8 ft. box 133 in. WB	—	200	260	3.42	8,300	6,400	4,227	2,173
SLE 4x2 Regular Cab 8 ft. box 133 in. WB	—	270	285	3.42	8,300	6,400	4,227	2,173
Base 4x2 Extended Cab 6.5 ft. box 143.5 in. WB	—	270	285	3.42	8,100	6,200	4,548	1,652
SLE 4x2 Extended Cab 6.5 ft. box 143.5 in. WB	—	270	285	3.42	8,100	6,200	4,548	1,652
SLT 4x2 Extended Cab 6.5 ft. box 143.5 in. WB	—	270	285	3.42	8,100	6,200	4,548	1,652
Work Truck 4x2 Extended Cab 6.5 ft. box 143.5 in. WB	—	200	260	3.42	8,100	6,200	4,548	1,652
Base 4x4 Regular Cab 6.5 ft. box 119 in. WB	—	270	285	3.73	9,100	6,200	4,439	1,761
SLE 4x4 Regular Cab 6.5 ft. box 119 in. WB	—	270	285	3.73	9,100	6,200	4,439	1,761
Work Truck 4x4 Regular Cab 8 ft. box 133 in. WB	—	270	285	3.73	9,000	6,400	4,579	1,821
Base 4x4 Regular Cab 8 ft. box 133 in. WB	—	270	285	3.73	9,000	6,400	4,579	1,821
SLE 4x4 Regular Cab 8 ft. box 133 in. WB	—	270	285	3.73	9,000	6,400	4,579	1,821
Base 4x4 Extended Cab 6.5 ft. box 143.5 in. WB	—	270	285	3.73	8,800	6,400	4,919	1,481
SLE 4x4 Extended Cab 6.5 ft. box 143.5 in. WB	—	270	285	3.73	8,800	6,400	4,919	1,481
SLT 4x4 Extended Cab 6.5 ft. box 143.5 in. WB	—	270	285	3.73	8,800	6,400	4,919	1,481
Denali 4x4 Extended Cab 6.5 ft. box 143.5 in. WB	—	325	370	4.1	10,000	7,200	5,013	2,187
Base 4x2 Extended Cab 8 ft. box 157.5 in. WB	—	285	325	3.42	7,900	6,400	4,810	1,590
SLE 4x2 Extended Cab 8 ft. box 157.5 in. WB	—	285	325	3.42	7,900	6,400	4,810	1,590
SLT 4x2 Extended Cab 8 ft. box 157.5 in. WB	—	285	325	3.42	7,900	6,400	4,810	1,590
Base 4x4 Extended Cab 8 ft. box 157.5 in. WB	—	285	325	3.73	8,700	6,400	5,097	1,303
SLE 4x4 Extended Cab 8 ft. box 157.5 in. WB	—	285	325	3.73	8,700	6,400	5,097	1,303
SLT 4x4 Extended Cab 8 ft. box 157.5 in. WB	—	285	325	3.73	8,700	6,400	5,097	1,303

How to interpret the headline tow figure

Ratings in this range are typically achievable with a weight-distributing hitch and the appropriate tow package. The conventional bumper-pull rating without weight distribution will be lower than the headline figure shown here — usually 5,000 to 8,000 lb. Confirm the hitch class on your vehicle's door-jamb sticker before towing at the upper end.

How this year compares to 2002

The 2002 GMC Sierra 1500 carried a maximum tow rating of 10,000 lb. The 2003 model carries the same headline figure — manufacturers usually leave the rating alone year-over-year unless there's a powertrain or hitch change. See the 2002 GMC Sierra 1500 page for the full per-trim breakdown of the prior year.

Other 2003 GMC models

The rest of GMC's 2003 lineup, ranked by maximum tow rating. Click through for the per-trim breakdown of any of these.

Model	Max tow (lb)
2003 GMC Sierra 2500 HD Crew CAB	12,000
2003 GMC Sierra 2500 HD Extended CAB	12,000
2003 GMC Sierra 2500 HD Regular CAB	12,000
2003 GMC Sierra 3500 Crew CAB	12,000
2003 GMC Sierra 3500 Extended CAB	12,000
2003 GMC Sierra 3500 Regular CAB	12,000

All figures sourced from manufacturer documentation. See our methodology for how the dataset is compiled. Always confirm against your vehicle's door-jamb sticker before towing.