2004 GMC Sierra 2500 HD Extended Cab pricing starts at $6,150 for the Sierra 2500 HD Extended Cab Work Truck Pickup 4D 6 1/2 ft, which had a starting MSRP of $28,185 when new. The range-topping 2004 Sierra 2500 HD Extended Cab SLT Pickup 4D 6 1/2 ft starts at $12,500 today, originally priced from $44,870.

	Original MSRP	KBB Fair Purchase Price (national avg.)
Work Truck Pickup 4D 6 1/2 ft	$28,185	$6,150
Pickup 4D 8 ft	$30,250	$6,600
SLE Pickup 4D 8 ft	$31,745	$6,925
Work Truck Pickup 4D 8 ft	$32,640	$6,825
SLT Pickup 4D 8 ft	$35,643	$7,800
Pickup 4D 6 1/2 ft	$39,427	$10,950
SLE Pickup 4D 6 1/2 ft	$40,972	$11,400
SLT Pickup 4D 6 1/2 ft	$44,870	$12,500

The Kelley Blue Book Fair Purchase Price for any individual used vehicle can vary greatly according to mileage, condition, location, and other factors. The prices here reflect what buyers are currently paying for used 2004 GMC Sierra 2500 HD Extended Cab models in typical condition when purchasing from a dealership. These prices are updated weekly.

Sierra 2500 HD Extended Cab Consumer Sentiment

Owners give this generation GMC Sierra 2500 HD Extended Cab (1999-2007) a 4.6 out of 5 rating, which is higher than most, and 94% recommend it. These figures are based on 1659 consumer reviews, like these:

What Owners are Saying About the 2004 GMC Sierra 2500 HD Extended Cab

"No Better GM Truck Out There"

"These are by far the most reliable - used trucks you will find on the market. Don't buy an 07 or newer, too many mechanical and electrical problems. GM has never been the same since the 03-06 trucks. Ultra reliable, easy to get parts, timeless body style, great work horse. Crew cabs will pull 19-20 mpg on the highway no problem (with stock suspension/wheels)."

"Great vehicle"

"Very tough...very dependable !!! Never owned a better truck. This thing will pull anything and you won't even know it's back there."

"Unbelievalble reliability"

"It's a beautiful totally fabulous truck. 1500 HD SLT. Original cost $38,000 in 2002. I've towed my boat with ease for 24 years and my brake linings still have 50% left. Brakes have not been replaced. Unreal. Boat and trailer is at least 4500 lbs unloaded. The comfort is exquisit. At 110,000 miles, I replaced the alternator in 1 hour max, easy. Every possible accutrament within works like new. Just blown away after 23 years how new it looks and inside leather comfort is like new. I'm having the small dings removed, replacing the shadowed lights and making it look new. So easy. I love this truck!"

Overall 2004 GMC Sierra 2500 HD Extended Cab Quality

User sentiment suggests the overall quality of the 2004 GMC Sierra 2500 HD Extended Cab is above average for its class. Owners rated the 2004 GMC Sierra 2500 HD Extended Cab quality a 4.7 out of 5.

2004 GMC Sierra 2500 HD Extended Cab Reliability

The 2004 GMC Sierra 2500 HD Extended Cab receives an average consumer rating of 4.6 overall and a 4.7 for reliability, which means owners consider its reliability to be above average.

Favorite 2004 Sierra 2500 HD Extended Cab Features

According to drivers of the 2004 Sierra 2500 HD Extended Cab, here are some of its best features:

Reliability
Dependable
Perfect
Great to drive and reliable
HD body, true work truck

2004 Sierra 2500 HD Extended Cab Safety

NHTSA Safety Rating

According to the National Highway Traffic Safety Administration (NHTSA), the 2004 GMC Sierra 2500 HD Extended Cab front-side driver crash test rating is 4 out of 5 stars. The front-side passenger crash test rating is 3 out of 5.

2004 GMC Sierra 2500 HD Extended Cab Safety Features

Child Door Locks
Child Seat Anchors
Driver Airbag
Passenger Airbag
Emergency & Security Services
Rear Parking Sensors

More About How We Rate Vehicles

2004 GMC Sierra 2500 HD Extended Cab Values and Prices

Style	Trade-In Value	Private Party Value	Fair Purchase Price
Work Truck Pickup 4D 6 1/2 ft	$3,825	$5,425	$6,150
Pickup 4D 8 ft	$4,125	$5,825	$6,600
Work Truck Pickup 4D 8 ft	$4,300	$6,000	$6,825
SLE Pickup 4D 8 ft	$4,375	$6,125	$6,925
SLT Pickup 4D 8 ft	$4,975	$6,875	$7,800
Pickup 4D 6 1/2 ft	$7,375	$9,650	$10,950
SLE Pickup 4D 6 1/2 ft	$7,700	$10,050	$11,400
SLT Pickup 4D 6 1/2 ft	$8,475	$11,000	$12,500

Values above are based on "Good" condition vehicles. Estimated Trade-In Values range from about $3,825 to $8,475 depending on vehicle style. Estimated Private Party Values range from about $5,425 to $11,000 depending on vehicle style. Values and prices are based on national averages and typical mileage for this model, but they can vary greatly according to mileage, condition, location, and other factors. Valid through 4/15/2026.

Trade-In Value

Trade-In Value is the amount you can expect to receive this week when trading in your vehicle at a dealership.

Private Party Value

Private Party Value is the fair price you can expect when selling your car to an individual, not to a dealer.

Fair Purchase Price

Fair Purchase Price shows what others in your area are actually paying for this vehicle.

Style	Trade-In Value	Private Party Value	Fair Purchase Price
Work Truck Pickup 2D 8 ft	$3,850	$5,425	$6,175
Pickup 2D 8 ft	$3,975	$5,600	$6,400
SLE Pickup 2D 8 ft	$4,200	$5,875	$6,700

Values above are based on "Good" condition vehicles. Estimated Trade-In Values range from about $3,850 to $4,200 depending on vehicle style. Estimated Private Party Values range from about $5,425 to $5,875 depending on vehicle style. Values and prices are based on national averages and typical mileage for this model, but they can vary greatly according to mileage, condition, location, and other factors. Valid through 4/15/2026.

Trade-In Value

Trade-In Value is the amount you can expect to receive this week when trading in your vehicle at a dealership.

Private Party Value

Private Party Value is the fair price you can expect when selling your car to an individual, not to a dealer.

Fair Purchase Price

Fair Purchase Price shows what others in your area are actually paying for this vehicle.

Style	Trade-In Value	Private Party Value	Fair Purchase Price
Pickup 2D 8 ft	$5,175	$6,275	$7,075
Work Truck Pickup 2D 8 ft	$4,875	$6,475	$7,275
SLE Pickup 2D 8 ft	$5,275	$6,550	$7,375

Values above are based on "Good" condition vehicles. Estimated Trade-In Values range from about $4,875 to $5,275 depending on vehicle style. Estimated Private Party Values range from about $6,275 to $6,550 depending on vehicle style. Values and prices are based on national averages and typical mileage for this model, but they can vary greatly according to mileage, condition, location, and other factors. Valid through 4/15/2026.

Trade-In Value

Trade-In Value is the amount you can expect to receive this week when trading in your vehicle at a dealership.

Private Party Value

Private Party Value is the fair price you can expect when selling your car to an individual, not to a dealer.

Fair Purchase Price

Fair Purchase Price shows what others in your area are actually paying for this vehicle.

Style	Trade-In Value	Private Party Value	Fair Purchase Price
Work Truck Pickup 4D 6 1/2 ft	$4,625	$6,400	$7,275
SLT Pickup 4D 8 ft	$6,150	$8,300	$9,450
Pickup 4D 8 ft	$7,300	$9,600	$10,850
Work Truck Pickup 4D 8 ft	$7,725	$9,825	$11,200
SLE Pickup 4D 8 ft	$7,525	$9,975	$11,250
Pickup 4D 6 1/2 ft	$7,850	$10,250	$11,600
SLE Pickup 4D 6 1/2 ft	$8,150	$10,600	$12,000
SLT Pickup 4D 6 1/2 ft	$9,400	$10,350	$11,700

Values above are based on "Good" condition vehicles. Estimated Trade-In Values range from about $4,625 to $9,400 depending on vehicle style. Estimated Private Party Values range from about $6,400 to $10,600 depending on vehicle style. Values and prices are based on national averages and typical mileage for this model, but they can vary greatly according to mileage, condition, location, and other factors. Valid through 4/15/2026.

Trade-In Value

Trade-In Value is the amount you can expect to receive this week when trading in your vehicle at a dealership.

Private Party Value

Private Party Value is the fair price you can expect when selling your car to an individual, not to a dealer.

Fair Purchase Price

Fair Purchase Price shows what others in your area are actually paying for this vehicle.

Style	Trade-In Value	Private Party Value	Fair Purchase Price
Work Truck Pickup 4D 6 1/2 ft	$5,700	$6,975	$7,850
SLE Pickup 4D 6 1/2 ft	$6,000	$7,075	$8,050
Pickup 4D 6 1/2 ft	$6,300	$7,800	$8,775
SLT Pickup 4D 6 1/2 ft	$7,525	$9,150	$10,400

Values above are based on "Good" condition vehicles. Estimated Trade-In Values range from about $5,700 to $7,525 depending on vehicle style. Estimated Private Party Values range from about $6,975 to $9,150 depending on vehicle style. Values and prices are based on national averages and typical mileage for this model, but they can vary greatly according to mileage, condition, location, and other factors. Valid through 4/15/2026.

Trade-In Value

Trade-In Value is the amount you can expect to receive this week when trading in your vehicle at a dealership.

Private Party Value

Private Party Value is the fair price you can expect when selling your car to an individual, not to a dealer.

Fair Purchase Price

Fair Purchase Price shows what others in your area are actually paying for this vehicle.

Style	Trade-In Value	Private Party Value	Fair Purchase Price
SLE Pickup 4D 6 1/2 ft	$6,575	$7,625	$8,600
SLT Pickup 4D 6 1/2 ft	$6,600	$7,625	$8,625

Values above are based on "Good" condition vehicles. Estimated Trade-In Values range from about $6,575 to $6,600 depending on vehicle style. Estimated Private Party Values range from about $7,625 to $7,625 depending on vehicle style. Values and prices are based on national averages and typical mileage for this model, but they can vary greatly according to mileage, condition, location, and other factors. Valid through 4/15/2026.

Trade-In Value

Trade-In Value is the amount you can expect to receive this week when trading in your vehicle at a dealership.

Private Party Value

Private Party Value is the fair price you can expect when selling your car to an individual, not to a dealer.

Fair Purchase Price

Fair Purchase Price shows what others in your area are actually paying for this vehicle.

See Full Specs for All 2004 GMC Sierra 2500 HD Extended Cab Styles

2004 GMC Sierra 2500 HD Extended Cab Depreciation

A 2004 GMC Sierra 2500 HD Extended Cab has depreciated $167 or 2% in the last 3 years and has a current resale value of $5,425 and trade-in value of $3,825.

Historical

Forecast

2004 GMC Sierra 2500 HD Extended Cab

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2004 GMC Sierra 2500 HD Extended Cab Annual Depreciation

Year	Vehicle Depreciation*	Resale Value	Trade-In Value
2023	$1,187	$5,592	$3,002
2024	$257	$5,335	$2,753
2025	$29	$5,306	$2,728
Now	+ $119	$5,425	$3,825

Unlock Forecast

2-Year Forecasted Depreciation

*Depreciation for the last 12 months of the private party resale value.

2004 GMC Sierra 2500 HD Extended Cab Depreciation

Annual Depreciation is an estimation of what your vehicle's value might be over time based on an average of similar vehicles. Estimations are calculated by comparing Kelley Blue Book Private Party Values of vehicles similar to yours over time, as well as forecasts from Manheim Auction data comparing current and projected auction values against current Kelley Blue Book Private Party and Trade-In Values. This is not a guarantee of actual depreciation. Local weather conditions, market factors and driver performance will also impact your vehicle's actual depreciation.

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Specifications

Dimensions, Weights & Capacities

	Curb Weight	5436 lbs.
	Fuel Capacity	26.0 gallons
	Front Head Room	41.0 inches
	Front Leg Room	41.3 inches
	Max Seating Capacity	6
	Minimum Ground Clearance	9.1 inches
	Overall Length	227.7 inches
	Front Shoulder Room	65.2 inches
	Towing Capacity, Maximum	12000 lbs.
	Turning Diameter	46.8 feet
	Wheel Base	143.5 inches
	Truck Bed Volume	56 cu.ft.
	Bed Length	6.50 feet
	Gross Vehicle Weight Rating (GVWR)	9200 lbs.
	Payload Capacity	3767 lbs.
	Width with mirrors	79.7 inches

Exterior

	Alloy Wheels	Available
	Moon Roof/Sun Roof	Available
	Number of Doors	4 doors
	Roof Rails	Available

Mechanical

	Drivetrain	2WD
	Transmission Type	Automatic

Performance

	Horsepower	300 @ 4400 RPM
	Torque	360 @ 4000 rpm
	Engine	V8, 6.0 Liter

Warranty

	Basic	3 years / 36000 miles
	Powertrain	3 years / 36000 miles
	Corrosion	6 years / 100000 miles

Entertainment

DVD Entertainment System
MP3 Player
CD Player

Interior

Power Windows
Tilt Steering Wheel

Seating

Leather Seats
Dual Power Front Seats
Power Driver's Seat

Technology

Cruise Control
Hands Free Phone
Navigation System

2004 GMC Sierra 2500 HD Extended Cab Safety

Safety Features & Technology

Child Door Locks
Child Seat Anchors
Driver Airbag
Passenger Airbag
Emergency & Security Services
Rear Parking Sensors

Not Available

Crash Test Rating

Provided by the National Highway Traffic Safety Administration

Driver Front

4.0

Passenger Front

3.0

Rollover Rating

4.0

2004 GMC Sierra 2500 HD Extended Cab Rankings

Rank	Vehicles	HP
#1	2004 Dodge Ram 2500 Regular Cab	330
#2	2006 Ford F350 Super Duty Super Cab	325
#3	2005 Chevrolet Avalanche 2500	325
#4	2008 Nissan Titan King Cab	317
#8	2004 GMC Sierra 2500 HD Extended Cab	300

FAQs

Is 2004 a good year for a GMC Sierra 2500 HD Extended Cab?

Owners of the vehicle give it 4.6 out of 5 stars. To find out if the 2004 Sierra 2500 HD Extended Cab is the right car for you, check out the pros and cons, trims, specs and options at Kelley Blue Book.

Is the GMC Sierra 2500 HD Extended Cab 2004 a good Pickup?

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2004 GMC Sierra 2500 HD Extended Cab

Used 2004 GMC Sierra 2500 HD Extended Cab

4.6

Consumer

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2004

Variations

Horsepower

300 hp

Torque

360 - 520 lb-ft

Towing Capacity

12,000 lbs

Payload

3,380 - 3,646 pounds

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2004 GMC Sierra 2500 HD Extended Cab Overview

2004 GMC Sierra 2500 HD Extended Cab Pricing

	Original MSRP	KBB Fair Purchase Price (national avg.)
Work Truck Pickup 4D 6 1/2 ft	$28,185	$6,150
Pickup 4D 8 ft	$30,250	$6,600
SLE Pickup 4D 8 ft	$31,745	$6,925
Work Truck Pickup 4D 8 ft	$32,640	$6,825
SLT Pickup 4D 8 ft	$35,643	$7,800
Pickup 4D 6 1/2 ft	$39,427	$10,950
SLE Pickup 4D 6 1/2 ft	$40,972	$11,400
SLT Pickup 4D 6 1/2 ft	$44,870	$12,500

Sierra 2500 HD Extended Cab Consumer Sentiment

What Owners are Saying About the 2004 GMC Sierra 2500 HD Extended Cab

"No Better GM Truck Out There"

"Great vehicle"

"Very tough...very dependable !!! Never owned a better truck. This thing will pull anything and you won't even know it's back there."

"Unbelievalble reliability"

Overall 2004 GMC Sierra 2500 HD Extended Cab Quality

User sentiment suggests the overall quality of the 2004 GMC Sierra 2500 HD Extended Cab is above average for its class. Owners rated the 2004 GMC Sierra 2500 HD Extended Cab quality a 4.7 out of 5.

2004 GMC Sierra 2500 HD Extended Cab Reliability

The 2004 GMC Sierra 2500 HD Extended Cab receives an average consumer rating of 4.6 overall and a 4.7 for reliability, which means owners consider its reliability to be above average.

Favorite 2004 Sierra 2500 HD Extended Cab Features

According to drivers of the 2004 Sierra 2500 HD Extended Cab, here are some of its best features:

Reliability
Dependable
Perfect
Great to drive and reliable
HD body, true work truck