Certified Pre-Owned 2018 GMC Sierra 2500HD SLT Crew Cab 4x4 | Duramax 6.6L Turbo-Diesel V8 & Gooseneck/5th Wheel Prep
Location: Flagstaff, AZ | Exterior: Summit White | Interior: Jet Black Leather-Appointed Seating
Certification: Certified Pre-Owned (Includes Multi-Point Inspection & Extended Warranty Coverage)
Heavy-Duty Duramax Turbo-Diesel Performance Meets High-Country CPO Luxury
If you are searching for a Certified Pre-Owned 2018 GMC Sierra 2500HD SLT Crew Cab 4x4 in Flagstaff, AZ, this heavy-duty 3/4-ton truck combines relentless high-altitude towing capability with premier cabin refinement and Certified peace of mind. Powered by the legendary 6.6L Duramax Turbo-Diesel V8 engine ($9,395 option) generating an astounding 445 horsepower and 910 lb-ft of torque, it delivers effortless power for hauling massive trailers up steep mountain grades.
Finished in clean Summit White over a Jet Black leather interior, this SLT 4x4 features 18-inch chromed aluminum wheels wrapped in LT265/70R18E all-terrain tires, 6-inch chrome tubular assist steps ($775 option), a power sunroof ($995 option), and a factory spray-on bed liner ($495 option).
Whether you are pulling fifth-wheel trailers through Williams, Ash Fork, and Seligman, navigating mountain switchbacks down Oak Creek Canyon, highway cruising to Kingman or Page, or hauling heavy machinery around Sedona and Prescott, this Certified 4x4 Duramax Sierra SLT is engineered for serious work.
Why Arizona Drives to Babbitt Ford (And Why Locals Stay)
- Certified Mountain Assurance: Every Certified Pre-Owned vehicle 2017 or newer undergoes a comprehensive multi-point inspection and comes backed by extended warranty protection, giving you complete confidence on high-altitude routes.
- The Best Deals Are Up the Mountain: Local Flagstaff customers and repeat buyers consistently highlight in reviews how our team works hard to beat Phoenix prices, proving you don't need to drive down to the Valley or deal with big-city haggling to get a great deal.
- Real Reviews, Zero Pressure: Our 5-star reputation is built on transparent, human-first service. As regional buyers share in their reviews, our process is seamless, highly accommodating, and completely pressure-free.
- Seamless from Start to Finish: Whether you live locally in Flagstaff or are making the drive up I-17, we respect your time. Reviewers love that we can complete most of the heavy lifting over the phone or online so your showroom visit is quick, easy, and straightforward.
Key Towing, Duramax Performance & Bed Utility Highlights
- 6.6L Duramax Turbo-Diesel V8 (445 HP / 910 LB-FT): High-output diesel powertrain ($9,395 option) engineered for extreme towing performance and heavy payload tasks.
- Factory Gooseneck / 5th Wheel Prep Package: Factory-installed frame crossmember and bed-mounted puck system ($370 option) ready for gooseneck or fifth-wheel hitch installation.
- Truck Bed Utility & Assist Steps: Spray-on bed liner ($495 option), driver-side cargo box retractable side assist step ($360 option), 6-inch chrome tubular running boards ($775 option), and rear bumper CornerSteps.
- Underbody & Off-Road Protection: Frame-mounted front underbody shield ($150 option) protecting the oil pan, differential case, and transfer case.
Premium SLT Interior Comforts & Connected Tech
Inside, the SLT Crew Cab surrounds you with luxury seating, executive comforts, and integrated safety tech:
- Full-Feature Leather Bucket Seats: 10-way power heated front bucket seats with power lumbar, 2-position driver memory, center console, and wireless charging pad ($510 option).
- Bose® Premium Audio & Touchscreen Navigation: 8-inch IntelliLink color touchscreen display with factory navigation ($495 option) paired with a Bose® 7-speaker premium audio system with subwoofer ($500 option).
- Power Sunroof & Storage Upgrades: Power sunroof ($995 option), composite rear under-seat storage bin ($255 option), all-weather floor liners ($200 option), and Universal Home Remote.
- Active Driver Safety Systems: Front and Rear Park Assist ($395 option), Rear Vision Camera, StabiliTrak with trailer sway control, and GMC Connected Access.
Detailed Vehicle Specifications
- Year/Model: Certified Pre-Owned 2018 GMC Sierra 2500HD SLT Crew Cab 4x4 (153.7" WB)
- VIN: 1GT42XCY1JF212104
- Engine: 6.6L Duramax Turbo-Diesel V8 (445 HP / 910 lb-ft torque) ($9,395 option)
- Drivetrain: 4WD with 4x4 Chrome Badging & Underbody Shield
- Exterior Color: Summit White (GAZ)
- Interior: Jet Black Leather-Appointed Seating
- Wheels/Tires: 18-Inch Chromed Aluminum Wheels with LT265/70R18E All-Terrain Tires
- Certification Benefits: Comprehensive Multi-Point Inspection, Extended Warranty Coverage & CARFAX/Vehicle History Verification
- Original MSRP Total: $82,105.00 (Check our active online inventory page for current CPO market pricing & discounts)
Frequently Asked Questions
Is this 2018 GMC Sierra 2500HD a Certified Pre-Owned vehicle?
Yes! Because it is a 2017 or newer model, it qualifies for Certified Pre-Owned (CPO) status, including a rigorous multi-point inspection and extended warranty protection.
Is this Sierra 2500HD equipped with the 6.6L Duramax Diesel engine and 4WD?
Yes! It features the 6.6L Duramax Turbo-Diesel V8 engine (445 HP / 910 lb-ft torque) paired with a 4x4 drivetrain.
Does this truck come ready for gooseneck or 5th-wheel towing?
Yes, it comes factory-equipped with the Gooseneck / 5th Wheel Prep Package ($370 option) and a spray-on bed liner ($495 option).
Where can I inspect and test drive this Certified GMC Sierra 2500HD in Northern Arizona?
This Summit White Certified 2018 GMC Sierra 2500HD SLT 4x4 Duramax is available at Babbitt Ford in Flagstaff, AZ, serving Coconino and Mohave counties, including Page, Williams, Ash Fork, Seligman, Kingman, Sedona, and Prescott.
Schedule Your VIP Test Drive Today
Don't miss out on this high-capability, Certified 910 lb-ft Duramax Diesel Sierra 2500HD SLT 4x4! Take advantage of our upfront mountain pricing—check our active website listing for today's current CPO sale price. Contact the Babbitt Ford sales team today at (928) 832-6896 to check availability, calculate your trade-in value, or schedule your VIP test drive!
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