ABOUT THIS VEHICLE
If youre looking for a serious towing machine, this 2003 GMC Sierra 2500HD SLE Extended Cab delivers legendary heavy-duty capability backed by one of the most respected diesel powertrains ever built. Finished in Pewter Metallic with a Dark Pewter interior, this truck is purpose-built for hauling, towing, and long-term reliability.
At the heart of this Sierra is the Duramax 6.6L Turbo-Diesel V8, paired with the renowned Allison 1000 5-speed automatic transmissiona combination known for exceptional torque delivery, durability, and confidence under load. Whether youre pulling a trailer, boat, equipment, or RV, this truck is engineered to handle demanding jobs with ease.
Towing & Performance Highlights
Duramax 6.6L Turbo-Diesel V8 (300 HP / massive low-end torque)
Allison 1000 Heavy-Duty Automatic Transmission
Heavy-Duty Rear Locking Differential
3.73 Rear Axle Ratio
Frame-Mounted Front Recovery Hooks
External Transmission Oil Cooler
Engine Oil Cooler & High-Capacity Cooling System
Integrated Trailer Wiring Provisions
HD Suspension & Stabilizer Bars
Work-Ready Capability
Sierra 2500HD Heavy-Duty Chassis
Extended Cab with Rear Seating
Long-lasting diesel efficiency under load
Steel bed construction with durable tie-downs
16" Polished Forged Aluminum Wheels
Spare Tire Lock & Under-Frame Mount
Comfort & Convenience
SLE Preferred Equipment Group
Power Windows & Locks
Cruise Control
Dual-Zone Manual Climate Control
AM/FM/CD Audio System
Power-Adjustable Mirrors
Deep-Tinted Glass
Safety & Control
4-Wheel Disc Brakes with ABS
Daytime Running Lamps
Driver & Passenger Front Airbags
Power Steering for Confident Handling
This GMC Sierra 2500HD Duramax is a proven workhorseideal for contractors, haulers, ranchers, or anyone needing dependable diesel towing capability without the cost of a newer heavy-duty truck.
If towing strength, reliability, and diesel longevity are your priorities, this Sierra 2500HD delivers.
Call us today to speak with one of our friendly Purchase Guides and schedule your private test drive appointment! Loveland (970) 251-1063.
ALL SALES FINAL. Vehicle features and specifications based on original factory configuration. Buyer to verify all equipment prior to purchase.