2004 GMC Sierra 2500 HD Duramax Diesel for Sale in Twin Falls, ID

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Asking $16,995

Drive Type

4WD

Transmission

Automatic

Engine

V8, 6.6L Turbo Diesel 

Mileage

160,296

VIN #

1GTHK29224E296919

‍ ‍This 2004 GMC Sierra 2500 HD pairs the two things diesel buyers care about most: the 6.6-liter Duramax and the Allison automatic behind it. This is the LLY version of the Duramax, the mid-2004 update that relocated the injectors for far easier service than the earlier LB7 and turned out 310 horsepower and 605 lb-ft of torque. It is a four-wheel-drive extended cab on a long bed, set up as a capable, no-nonsense work and tow truck.

It rolls on aftermarket Fuel wheels wrapped in Toyo Open Country all-terrains, with a tri-fold tonneau over a bed-lined box, an upgraded exhaust, and a tow hitch ready for a trailer or gooseneck. Inside, the grey leather cabin has a touchscreen head unit and seating for the crew. The driver's seat shows honest wear consistent with the mileage, and we'd rather point that out than pretend otherwise.

About those miles: 160,000 sounds like a lot until you remember what it's attached to. The Duramax and Allison combination is one of the most durable diesel drivetrains GM ever built, and these trucks routinely run well past 300,000 miles with basic care. A well-maintained example at this price is a lot of capability for the money.

For anyone in the Magic Valley who needs to tow, haul, or just wants a tough diesel that will keep working for years, this Sierra is priced to move at $16,995.

Interested? Let’s talk.

    • Engine

      • Engine: 6.6L Duramax LLY V8 turbodiesel

      • Horsepower: 310 hp @ 3,000 rpm

      • Torque: 605 lb-ft @ 1,600 rpm

      • Induction: Garrett variable-geometry turbocharger

      • Fuel system: High-pressure common-rail direct injection

      • Configuration: V8, 32-valve, aluminum heads

      Transmission and drivetrain

      • Transmission: Allison 1000 5-speed automatic

      • Drive type: Four-wheel drive

      • Configuration: Front engine, selectable 4WD

    • Body and capability

      • Cab: Extended cab, 4 doors

      • Bed: Long bed (8 ft), spray-in liner

      • Seating: 5 (front buckets with console, rear bench)

      • Towing: rated well over 10,000 lbs conventional depending on configuration

    • Aftermarket and added equipment

      • Fuel alloy wheels

      • Toyo Open Country A/T tires

      • Tri-fold tonneau cover

      • Upgraded exhaust

      • Touchscreen head unit

      • Reese tow hitch / receiver

      • Running boards

  • Is this the LB7 or LLY Duramax? It's the LLY, confirmed by the 8th VIN digit. The LLY arrived mid-2004 and moved the fuel injectors outside the valve covers, which makes them far easier and cheaper to service than the earlier LB7 design.

    Is 160,000 miles too many for a diesel? Not for a Duramax. The Duramax and Allison drivetrain is built for high mileage, and many run past 300,000 with routine maintenance. On a diesel, how it was maintained matters far more than the odometer.

    What transmission does it have? The Allison 1000 five-speed automatic, widely regarded as one of the best heavy-duty automatics ever paired with a diesel.

    How much can it tow? As a 2500 HD with the Duramax and Allison, it's built for serious towing, comfortably into five-figure trailer weights depending on the exact configuration. We can confirm the precise rating for this truck's axle ratio on request.

    Can Limited Auto Group service this truck after purchase? Yes. Our shop on Kimberly Road can handle Duramax diesel maintenance and keep it running strong close to home.

What Our Clients Say

Why Buy from Limited Auto

For decades, owning a luxury or European vehicle in Southern Idaho meant accepting a tradeoff: either drive hours to Boise or Salt Lake City for qualified service, or settle for a general shop that didn't truly understand your car. Limited Auto Group exists to end that tradeoff.

Every vehicle in our inventory is fully inspected and serviced in-house before listing — by technicians trained specifically on European and exotic platforms, using the same factory-level diagnostic software as the dealerships. We use only genuine OEM parts and high-grade European fluids, because the right service is what protects your investment.

When you buy from us, you're also gaining a local service home for the life of your car. Routine maintenance, performance tuning, detailing, wheels and tires — it all happens at our facility on Kimberly Road, just minutes from anywhere in the Magic Valley. No appointments months out, no shipping your car across state lines, no compromises. Just the car you want, properly cared for, close to home.

Luxury Auto Sales & European Auto Repair Near Me

Luxury cars parked indoors, including a white McLaren, black Bentley, silver Maserati, red sports car, gray Porsche, blue Range Rover, and black classic Land Rover with tires stacked in the background.
Luxury cars parked indoors, including a white McLaren, black Bentley, silver Maserati, red sports car, gray Porsche, blue Range Rover, and black classic Land Rover with tires stacked in the background.

Located at 2469 Kimberly Rd in Twin Falls, Limited Auto Group is the Magic Valley’s exclusive destination for premium European car sales, consignment, and specialized repair. You no longer need to drive to Boise or Salt Lake City to find expert, factory-level service for your luxury vehicle. From custom performance tuning to routine maintenance, our certified technicians proudly serve clients across the following Southern Idaho communities:

  • Twin Falls, ID

  • Kimberly, ID

  • Jerome, ID

  • Filer, ID

  • Castleford, ID

  • Hazelton, ID

  • Shoshone, ID

  • Gooding, ID

  • Buhl, ID

  • Hansen, ID

  • Wendell, ID

  • Eden, ID

  • Burley, ID

  • Rupert, ID

  • Heyburn, ID

  • Declo, ID