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How big is the gas tank on a 2002 Chevy Silverado 2500 HD?

34 gallons (128 liters) is the standard gas tank capacity for the 2002 Silverado 2500 HD across most configurations.


Tank size in context


The 34-gallon tank is the conventional figure you’ll encounter for most gasoline-powered 2002 Chevy Silverado 2500 HD models. Exact capacity can vary slightly depending on cab style (regular, extended, crew), bed length, and any factory options that might affect the fuel system. For precise figures tied to your specific truck, consult the owner's manual or the VIN-based build data from Chevrolet.


To confirm the exact capacity for your vehicle, you can use the verification methods listed below.


Before you check those sources, here are reliable ways to verify the tank size for a given truck configuration:



  • Check the owner's manual for the official fuel system specifications for the 2002 Silverado 2500 HD.

  • Inspect the factory window sticker or the fuel-related label on the driver’s door jamb; it sometimes lists tank capacity.

  • Consult GM’s official service literature or the dealership’s VIN-specific build data in Chevrolet’s catalog to confirm the precise figure for your VIN.


Conclusion: For most 2002 Silverado 2500 HD models, the standard tank is 34 gallons. Exact figures can vary slightly by cab configuration or optional equipment, so verify with official sources if precision is critical.


Additional considerations


Variations by configuration


While 34 gallons is the typical baseline, certain cab styles and bed lengths, or rare factory configurations, can lead to minor differences in capacity. In practice, though, the 34-gallon figure remains the common reference for the model year.


Summary


The 2002 Chevy Silverado 2500 HD generally uses a 34-gallon (128-liter) gas tank. This capacity supports a substantial driving range for most configurations, but always verify the exact number for your specific vehicle using the owner's manual, door sticker, or VIN-based build data.

How big is the gas tank on a 2002 Chevy Silverado 2500HD?


34 gal
Fuel & MPG
0/0 mi. 34 gal.



How many miles per gallon does a 2002 Chevy Silverado 2500HD 8.1 get?


2500HD LT Crew Cab LB 8.1L
Great truck with lots of power. The 8.1L gets 12 mpg around town and up to 13.5 highway.



How big is the gas tank on a Chevy Silverado 2500 HD?


Fuel & MPG

Fuel typeRegular unleaded
Range in miles (city/hwy)0/0 mi.
Fuel tank capacity36.0 gal.



How many miles can a 2002 Silverado 2500 HD last?


200,000 to 300,000 miles
If you take good care of your Chevy Silverado, you can expect it to last anywhere from 200,000 to 300,000 miles—and that's just the baseline.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.