2004 Chevrolet Silverado 2500 Gas Tank Size & Fuel Capacity
Fuel tank capacity
26.0–34.0gal · 98–129 L
The 2004 Chevrolet Silverado 2500 has a fuel tank capacity of 26.0 to 34.0 gallons (98–129 liters), depending on the trim. The most common size is 26.0 gallons, used on 8 trims.
34.0 gal · Bigger than 93% of 2004 models we list.
Listed separately: 2004 Chevrolet Silverado 1500 (26.0–34.0 gal), 2004 Chevrolet Silverado 2500HD (26.0–34.0 gal), 2004 Chevrolet Silverado 3500 (34.0 gal).
2004 Chevrolet Silverado 2500 fuel tank capacity by trim
What changes the tank sizeTap an option to filter the table
- Drive
- Cab
- Bed
- Engine
All 11 trims
| Trim | Engine | Drive | Tank | |||
|---|---|---|---|---|---|---|
| 4dr Crew Cab LS 4WD SB 6.0L 8cyl 4A · 4WD | 6.0L 8cyl 4A | 4WD | 26.0 gal98 L | |||
| 4dr Crew Cab LS Rwd SB 6.0L 8cyl 4A · RWD | 6.0L 8cyl 4A | RWD | 26.0 gal98 L | |||
| 4dr Crew Cab LT 4WD SB 6.0L 8cyl 4A · 4WD | 6.0L 8cyl 4A | 4WD | 26.0 gal98 L | |||
| 4dr Crew Cab LT Rwd SB 6.0L 8cyl 4A · RWD | 6.0L 8cyl 4A | RWD | 26.0 gal98 L | |||
| 4dr Extended Cab 4WD SB 6.0L 8cyl 4A · 4WD | 6.0L 8cyl 4A | 4WD | 26.0 gal98 L | |||
| 4dr Extended Cab LS 4WD SB 6.0L 8cyl 4A · 4WD | 6.0L 8cyl 4A | 4WD | 26.0 gal98 L | |||
| 4dr Extended Cab LT 4WD SB 6.0L 8cyl 4A · 4WD | 6.0L 8cyl 4A | 4WD | 26.0 gal98 L | |||
| 4dr Extended Cab Work Truck 4WD SB 6.0L 8cyl 4A · 4WD | 6.0L 8cyl 4A | 4WD | 26.0 gal98 L | |||
| 2dr Regular Cab LS Rwd LB 6.0L 8cyl 5M · RWD | 6.0L 8cyl 5M | RWD | 34.0 gal129 L | |||
| 2dr Regular Cab Rwd LB 6.0L 8cyl 5M · RWD | 6.0L 8cyl 5M | RWD | 34.0 gal129 L | |||
| 2dr Regular Cab Work Truck Rwd LB 6.0L 8cyl 5M · RWD | 6.0L 8cyl 5M | RWD | 34.0 gal129 L | |||
| No trim matches all of these filters. | ||||||
Tank figures are the manufacturer's rated capacity, sorted smallest tank first. The EPA doesn't rate fuel economy for heavy-duty pickups and vans (over 8,500 lb gross vehicle weight), so these trims have no official MPG or range.
What it costs to fill up a 2004 Chevrolet Silverado 2500
$111.02 to fill the 26.0-gallon tank from empty with regular, at this week's US average of $4.27 a gallon.
| Tank | Fuel | US avg / gal | From empty | From 1/4 tank |
|---|---|---|---|---|
| 26.0 gal | Regular | $4.27 | $111.02 | $83.26 |
| 34.0 gal | Regular | $4.27 | $145.18 | $108.88 |
By region, 26.0-gallon tank
| Region | Regular / gal | Fill from empty |
|---|---|---|
| East Coast | $4.02 | $104.52 |
| Midwest | $4.27 | $111.02 |
| Gulf CoastLowest | $3.70 | $96.20 |
| Rocky Mountain | $4.46 | $115.96 |
| West Coast | $5.42 | $140.92 |
| CaliforniaHighest | $5.89 | $153.14 |
Prices: U.S. Energy Information Administration retail averages for the week of October 26, 2026. This week's prices by state and city.
Your own price
- 26.0-gallon tank$111.02
- 34.0-gallon tank$145.18
Starts at the US average for regular; type in what your station charges. For other tank sizes, use the fill-up calculator.
Silverado 2500 tank size in other years
The 2004 Silverado 2500 uses the same 26.0–34.0 gal tank sizes as every Silverado 2500 since 1999.
| Model year | Tank | Longest highway range |
|---|---|---|
| 2004 Silverado 2500 | 26.0–34.0 gal | Not rated |
| 2003 Silverado 2500 | 26.0–34.0 gal | Not rated |
| 2002 Silverado 2500 | 26.0–34.0 gal | Not rated |
| 2001 Silverado 2500 | 26.0–34.0 gal | Not rated |
| 2000 Silverado 2500 | 26.0–34.0 gal | 612 mi |
| 1999 Silverado 2500 | 26.0–34.0 gal | 612 mi |
2004 Chevrolet Silverado 2500 vs similar 2004 pickups
At 34.0 gallons, the Silverado 2500's largest tank ranks second of the five 2004 pickups compared here. The Dodge Ram Pickup 2500 carries the most (35.0 gal) and the Nissan Titan the least (28.0 gal).
| 2004 model | Tank | Longest highway range |
|---|---|---|
| Dodge Ram Pickup 2500 | 34.0–35.0 gal | Not rated |
| Chevrolet Silverado 2500 | 26.0–34.0 gal | Not rated |
| GMC Sierra 2500 | 26.0–34.0 gal | Not rated |
| Ford F-150 | 25.0–30.0 gal | 540 mi |
| Nissan Titan | 28.0 gal | 476 mi |
Other 2004 pickups of a similar size, one model per brand.
2004 Chevrolet Silverado 2500 fuel pump and gauge parts
These are the part numbers the makers list for the 2004 Chevrolet Silverado 2500. Check the fuel system recalls first: recall repairs are free.
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Frequently asked questions
What is the fuel tank capacity of the 2004 Chevrolet Silverado 2500?
The 2004 Chevrolet Silverado 2500 holds between 26.0 and 34.0 gallons, depending on the trim. 26.0 gallons is the usual size; the 34.0-gallon tank comes on the 2dr Regular Cab LS Rwd LB (6.0L 8cyl 5M).
How many gallons and liters does the 2004 Chevrolet Silverado 2500 gas tank hold?
The 2004 Chevrolet Silverado 2500 tank holds 98–129 liters, or 26.0–34.0 gallons in US gallons.
Which 2004 Chevrolet Silverado 2500 has the biggest gas tank?
The 34.0-gallon tank is on the 2dr Regular Cab LS Rwd LB, 2dr Regular Cab Rwd LB, 2dr Regular Cab Work Truck Rwd LB. The smallest tank, 26.0 gallons, is on the 4dr Crew Cab LS 4WD SB.
Does 4WD change the 2004 Chevrolet Silverado 2500 gas tank?
Yes. 4WD: 26.0 gal; RWD: 26.0–34.0 gal.
What gas does the 2004 Chevrolet Silverado 2500 take?
Regular unleaded. The label inside the fuel door confirms it for your car.
How much does it cost to fill up a 2004 Chevrolet Silverado 2500?
At the US average of $4.27 a gallon for regular (EIA, week of October 26, 2026), filling the 26.0-gallon tank from empty costs $111.02. It ranges from $96.20 in the Gulf Coast to $153.14 in California.
How much does a full tank of gas weigh in a 2004 Chevrolet Silverado 2500?
About 211 pounds for the 34.0-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.
Does the 2004 Chevrolet Silverado 2500 have a bigger gas tank than the GMC Sierra 2500?
No, they match: both top out at 34.0 gallons in 2004.
Sources
- Tank sizes: manufacturer-rated capacities from US-market specifications, checked against independent references. Updated October 2026.
- MPG and range: EPA ratings. Range is tank size times EPA MPG.
- Fuel prices: U.S. Energy Information Administration, week of October 26, 2026 (this week's prices).
Does your owner's manual say something different? Let us know and we'll fix it. More on how we check the numbers.