GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2003 🢒 GMC K Sierra - 4WD (CNG) 🢒 Driving Your Vehicle 🢒 Towing 🢒 Towing a Trailer

Trailer Weight

Vehicle*

GVWR

Axle Ratio

Maximum Trailer Weight

GCWR

2WD

C-2500 Regular Cab Long Box

8,500  lbs. (3 855.5 kg)

3.73

7,200 lbs. (3 266 kg)

13,000 lbs. (5 902 kg)

C-2500 Regular Cab Long Box

9,200 lbs. (4 173 kg)

4.10

8,200 lbs. (3 719 kg)

14,000 lbs. (6 356 kg)

C-2500 Extended Cab Long Box

8,500 lbs (3 855.5  kg)

3.73

6,800 lbs (3 084 kg)

13,000 lbs. (5 902 kg)

C-2500 Extended Cab Long Box

9,200 lbs (4 173 kg)

4.10

7,800 lbs. (3 538 kg)

14,000 lbs. (6 356 kg)

4WD

K-2500 Regular Cab Long Box

8,500 lbs. (3 855.5 kg)

3.73

6,700 lbs. (3 039 kg)

13,000 lbs. (5 902 kg)

K-2500 Regular Cab Long Box

9,200 lbs. (4 173 kg)

4.10

7,700 lbs. (3 493 kg)

14,000 lbs. (6 356 kg)

K-2500 Extended Cab Long Box

8,500 lbs. (3 855.5 kg)

3.73

6,500 lbs. (2 948 kg)

13,000 lbs. (5 902 kg)

K-2500 Extended Cab Long Box

9,200  lbs. (4 173 kg)

4.10

7,500 lbs. (3 402 kg)

14,000 lbs. (6 356 kg)

K-2500 Crew Cab Long Box

9,200 lbs. (4 173 kg)

4.10

7,000 lbs. (3 175 kg)

14,000 lbs.(6 356 kg)

*Notes:

    • Weight-distributing hitch tongue weight 10% to 15% of hitch pulling weight 1,000 lbs. (454 kg) maximum.
    • CNG fuel vehicles are neither designed nor intended to tow 5th wheel gooseneck trailers.
    • Above maximum trailer ratings and GCWR are specific to CNG vehicles.
    • Consult your GM owner's manual for additional information regarding trailer towing.