2026 GMC Sierra 2500HD AT4X 4-Door Truck
Exterior Color:
Onyx Black
Interior Color:
Obsidian Rush
Stock Number:
C6663
Mileage:
2,978
Engine:
Duramax 6.6L Biodiesel Turbo V8 470hp 975ft. lbs.
Fuel:
Diesel
Transmission:
Automatic
Title:
Payoff
VIN:
1GT4UZEY6TF175105
CARFAX:
* SOLD! *
Vehicle Description
Motorcars International is pleased to present this 2026 GMC Sierra 2500 AT4X Duramax — Fully Custom | No Expense Spared
This 2026 GMC Sierra 2500 AT4X isn’t just optioned — it’s purpose-built. Finished in Onyx Black, this truck blends factory AT4X capability with high-end aftermarket upgrades to create a commanding, one-of-one build that stands apart from anything else on the road.
At its core is the legendary Duramax diesel, delivering immense torque and proven reliability, wrapped in GMC’s most aggressive heavy-duty off-road platform. From there, this build was elevated with premium components chosen for durability, performance, and visual impact.
Highlights & Custom Upgrades
Factory AT4X Package – Multimatic DSSV dampers, locking differentials, and off-road-tuned suspension
Duramax Turbo-Diesel Power – Effortless towing, long-haul confidence, and unmatched torque
Fab Fours Grille Guard – Heavy-duty front protection with aggressive styling
Warn Winch – Trusted recovery power for real-world off-road capability
Rigid Industries LED Lighting – Exceptional forward visibility with premium-grade illumination
SmartCap EVO Topper – Modular, expedition-ready topper built for strength and versatility
37” All-Terrain Tires – Massive footprint that delivers both stance and traction
Denali Ultimate Wheels – Luxury-grade contrast that elevates the truck’s presence
ICON Rocklear Coating (15-Year Protection) – Industry-leading protection for lasting gloss and durability
GMC Illuminated Front Grille Logo – Subtle, premium detail that completes the custom look
Why This Truck Is Different
This isn’t a bolt-on build — it’s a carefully curated custom truck designed to perform as aggressively as it looks. Every component was selected to complement the AT4X platform, maintaining factory-level refinement while dramatically increasing capability and presence.
Whether parked curbside, hauling serious weight, or heading deep off the grid, this Sierra AT4X delivers confidence, exclusivity, and authority.
If you’re looking for a heavy-duty truck that no one else has — and few can replicate — this is it.
This 2026 GMC Sierra 2500 AT4X isn’t just optioned — it’s purpose-built. Finished in Onyx Black, this truck blends factory AT4X capability with high-end aftermarket upgrades to create a commanding, one-of-one build that stands apart from anything else on the road.
At its core is the legendary Duramax diesel, delivering immense torque and proven reliability, wrapped in GMC’s most aggressive heavy-duty off-road platform. From there, this build was elevated with premium components chosen for durability, performance, and visual impact.
Highlights & Custom Upgrades
Factory AT4X Package – Multimatic DSSV dampers, locking differentials, and off-road-tuned suspension
Duramax Turbo-Diesel Power – Effortless towing, long-haul confidence, and unmatched torque
Fab Fours Grille Guard – Heavy-duty front protection with aggressive styling
Warn Winch – Trusted recovery power for real-world off-road capability
Rigid Industries LED Lighting – Exceptional forward visibility with premium-grade illumination
SmartCap EVO Topper – Modular, expedition-ready topper built for strength and versatility
37” All-Terrain Tires – Massive footprint that delivers both stance and traction
Denali Ultimate Wheels – Luxury-grade contrast that elevates the truck’s presence
ICON Rocklear Coating (15-Year Protection) – Industry-leading protection for lasting gloss and durability
GMC Illuminated Front Grille Logo – Subtle, premium detail that completes the custom look
Why This Truck Is Different
This isn’t a bolt-on build — it’s a carefully curated custom truck designed to perform as aggressively as it looks. Every component was selected to complement the AT4X platform, maintaining factory-level refinement while dramatically increasing capability and presence.
Whether parked curbside, hauling serious weight, or heading deep off the grid, this Sierra AT4X delivers confidence, exclusivity, and authority.
If you’re looking for a heavy-duty truck that no one else has — and few can replicate — this is it.
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Business Hours
| Mon: | 9-5 |
|---|---|
| Tue: | 9-5 |
| Wed: | 9-5 |
| Thu: | 9-5 |
| Fri: | 9-5 |
| Sat: | By Appointment |
| Sun: | Closed |
Location
2841 E Industrial Dr
Springfield, MO 65802
Springfield, MO 65802
