Mountain Top Motor Company

Reduced by $1,001 since Jun 29, 2026

2015 GMC Sierra 3500HD SLT



  • $45,999 INTERNET PRICE


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Vehicle Information

VIN: 1GT423C86FF112922
Stock #: J901
Model Code: TK35943
  • Body Style 4D Crew Cab
  • Exterior Color Summit White
  • Interior Color Jet Black
  • Mileage 79,784
  • Engine 8 Cyl - 6.6 L
  • Transmission Allison 1000 6-Speed Automatic
  • Fuel Type Diesel

Highlighted Features

Feature availability subject to final vehicle configuration. Please reference window sticker for more info.

Dealer Comments

Discover the power and capability of the 2015 GMC Sierra 3500HD SLT. This heavy-duty truck is built to handle the toughest jobs with ease, thanks to its Duramax 6.6L V8 Turbodiesel engine and Allison 1000 6-speed automatic transmission. With 4-wheel drive and dual rear wheels, it's ready to take on any terrain or towing task.

- *NOW AVAILABLE* - This Sierra 3500HD has been meticulously inspected and serviced, ensuring it's in top condition. Enjoy premium features like:
- Android Auto/Apple CarPlay
- Backup Camera
- Blind-Spot Monitors
- Bluetooth®
- Heated and Cooled Seats
- Navigation System
- Power Liftgate
- Remote Start
- Touch Screen Controls

The interior is appointed with luxurious leather seating, providing all-day comfort on the road. The Bose premium audio system and 8-inch touchscreen display keep you entertained and connected. With the Duramax Plus Package, you'll also benefit from front and rear park assist for easy maneuvering.

This Sierra 3500HD is the perfect blend of power, capability, and premium amenities. Experience the difference for yourself - schedule a test drive today!

Eligible Benefits

All Features

  • Suspension Package, Standard includes 51mm twin tube shock absorbers and 33mm front stabilizer bar
  • Pickup box, Wideside
  • Air cleaner, high-capacity
  • Transfer case, electronic shift with rotary dial controls (Requires 4WD models.)
  • Differential, heavy-duty locking rear
  • Four wheel drive
  • Trailering equipment Trailering hitch platform 2.5" with a 2.0" insert for HD, 7-wire harness with independent fused trailering circuits mated to a 7-way sealed connector to hook up parking lamps, backup lamps, right and left turn signals, an electric brake lead, battery and a ground, The trailer connector also includes the 4-way for use on trailers without brakes - park, brake/turn lamps (Deleted when (ZW9) pickup box delete or (9J4) rear bumper delete is ordered.)
  • Battery, heavy-duty 720 cold-cranking amps/80 Amp-hr maintenance-free with rundown protection and retained accessory power
  • Alternator, 150 amps
  • Trailer brake controller, integrated (Standard with (E63) pickup box. Available to order with (ZW9) pickup box delete.)
  • Recovery hooks, front, frame-mounted, black
  • Frame, fully-boxed, hydroformed front section
  • Steering, Recirculating ball
  • Brakes, 4-wheel antilock, 4-wheel disc (Requires single rear wheels.)
  • Exhaust, aluminized stainless-steel muffler and tailpipe
  • Wheels, 18" (45.7 cm) forged polished aluminum includes 18" x 8" (45.7 cm x 20.3 cm) steel spare wheel. Spare not included with (ZW9) pickup box delete unless a spare tire is ordered. (Requires single rear wheels.)
  • Tires, LT265/70R18E all-season, blackwall (Requires single rear wheels.)
  • Wheelhouse liners, rear (Not available with dual rear wheels. Deleted with (ZW9) pickup box delete.)
  • Tire carrier lock keyed cylinder lock that utilizes same key as ignition and door (Not included when (ZW9) pickup box delete or (9J4) rear bumper delete is ordered.)
  • Bumper, front chrome
  • Bumper, rear chrome with bumper CornerSteps
  • CornerStep, rear bumper
  • Moldings, bodyside, chrome
  • Grille surround, chrome
  • Headlamps, halogen projector with LED signature
  • Fog lamps, front, halogen
  • Lamps, cargo area, cab mounted with switch on center switch bank
  • LED Lighting, cargo box with switch on center switch bank (Deleted when (ZW9) pickup box delete is ordered.)
  • Mirrors, outside heated power-adjustable vertical camper, manual-folding and extending, black. Includes integrated turn signal indicators consisting of 50 square inch flat mirror surface positioned over a 20 square inch convex mirror surface with a common head and lower convex spotter glass (convex glass is not heated and not power adjustable).
  • Glass, deep-tinted
  • Door handles, chrome
  • Tailgate and bed rail protection caps, top
  • Tailgate, locking, utilizes same key as ignition and door (Deleted with (ZW9) pickup box delete.)
  • Tailgate, EZ-Lift and Lower (Deleted when (ZW9) pickup box delete is ordered.)
  • Cargo ties downs (4), movable upper (Deleted when (ZW9) pickup box delete is ordered.)
  • Audio system, 8" Diagonal Color Touch Screen with IntelliLink, AM/FM/SiriusXM with USB ports, auxiliary jack, SD card slot, Bluetooth® streaming audio for music and most phones, hands-free smartphone integration, Pandora Internet radio and voice-activated technology for radio and phone (Upgradeable to (IO6) 8" Diagonal Color Touch Screen Navigation with IntelliLink.)
  • Single-slot CD/MP3 player (Replaced by (U42) rear seat DVD/Blu-Ray Entertainment Package when (U42) is ordered.)
  • SiriusXM Satellite Radio and HD Radio SiriusXM Satellite Radio includes a 3-month trial. (If you decide to continue your service at the end of your trial subscription, the plan you choose will automatically renew and bill at then-current rates until you call 1-866-635-2349 to cancel. See SiriusXM Customer Agreement for complete terms at siriusxm.com. Other fees and taxes will apply. All fees and programming subject to change. IMPORTANT: The SiriusXM Satellite Radio trial package is not provided on vehicles that are ordered for Fleet Daily Rental ("FDR") use.)
  • 6-speaker audio system
  • Bluetooth® for phone personal cell phone connectivity to vehicle audio system
  • Seats, front 40/20/40 leather-appointed split-bench, 3-passenger with (KA1) heated seat cushions and seat backs. Includes 10-way power driver and front passenger seat adjusters, including driver/front passenger power recline, driver/front passenger power lumbar, 2- position driver memory and adjustable outboard head restraints. (Upgradeable to (AN3) front full-feature leather-appointed bucket seats.)
  • Seat trim, Leather-appointed front seats
  • Seating, heated driver and front passenger
  • Seat, rear 60/40 folding bench (folds up), 3-passenger (includes child seat top tether anchor)
  • Floor covering, color-keyed carpeting with rubberized vinyl floor mats (Double Cab and Crew Cabs include second row floor mats)
  • Steering column, manual Tilt-Wheel
  • Steering wheel, leather-wrapped with audio and cruise controls
  • Steering wheel audio controls
  • Driver Information Center 4.2-inch diagonal color display, includes driver personalization, warning messages and vehicle information
  • Windows, power with driver express up and down and express down on all other windows
  • Door locks, power
  • Remote Keyless Entry
  • Remote vehicle starter system
  • Pedals, power-adjustable
  • Cruise control, steering wheel-mounted
  • Universal Home Remote (Not included when (TRW) provision for cab roof-mounted lamp or (VYU) Snow Plow Prep Package are ordered.)
  • Theft-deterrent system, unauthorized entry
  • Air conditioning, dual-zone automatic climate control
  • Defogger, rear-window electric
  • Power outlet, 110-volt AC
  • Mirror, inside rearview auto-dimming
  • Visors, driver and front passenger illuminated vanity mirrors
  • Assist handle, front passenger and driver on A-pillars
  • StabiliTrak, stability control system with Proactive Roll Avoidance and traction control includes electronic trailer sway control and hill start assist
  • Daytime Running Lamps with automatic exterior lamp control
  • Air bags, frontal, driver and right front passenger, single stage
  • OnStar, 6 months of Directions and Connections plan (Visit onstar.com for coverage map, details and system limitations. Services vary by model and conditions.)
  • Rear Vision Camera with dynamic guide lines (Not included when (ZW9) pickup box delete or (9J4) rear bumper delete is ordered.)

ENGINE, DURAMAX 6.6L TURBO DIESEL V8, B20-DIESEL COMPATIBLE

  • (397 hp [296.0 kW] @ 3000 rpm
  • 765 lb-ft of torque [1032.8 N-m] @ 1600 rpm)

  • Navigation System
  • Cargo Convenience Package
  • Duramax Plus Package
  • Preferred Equipment Group 4SA
  • Standard Suspension Package
  • Trailering Equipment
  • 6 Speakers
  • 6-Speaker Audio System
  • AM/FM radio: SiriusXM
  • CD player
  • Radio: AM/FM Stereo w/8" Diagonal Color Touch Nav.
  • Radio: AM/FM Stereo w/8" Diagonal Color Touch Screen
  • Single-Slot CD/MP3 Player
  • SiriusXM Satellite Radio
  • Steering Wheel Audio Controls
  • Air Conditioning
  • Automatic temperature control
  • Dual-Zone Automatic Climate Control
  • Electric Rear-Window Defogger
  • Front dual zone A/C
  • Rear window defroster
  • 110-Volt AC Power Outlet
  • Memory seat
  • Pedal memory
  • Power driver seat
  • Power steering
  • Power Windows
  • Power windows
  • Remote Keyless Entry
  • Remote keyless entry
  • Remote Vehicle Starter System
  • Steering wheel mounted audio controls
  • Universal Home Remote
  • Manual Tilt-Wheel/Telescoping Steering Column
  • Traction control
  • 4-Wheel Disc Brakes
  • ABS brakes
  • Dual front impact airbags
  • Emergency communication system: OnStar Directions & Connections
  • Front anti-roll bar
  • Front wheel independent suspension
  • Occupant sensing airbag
  • Brake assist
  • Electronic Stability Control
  • Exterior Parking Camera Rear
  • Delay-off headlights
  • Front fog lights
  • Front Halogen Fog Lamps
  • Fully automatic headlights
  • Panic alarm
  • Security system
  • Unauthorized Entry Theft-Deterrent System
  • Speed control
  • Dual rear wheels
  • 150 Amps Alternator
  • Engine Block Heater
  • Exhaust Brake
  • Bodyside moldings
  • Bumpers: chrome
  • Chrome Bodyside Moldings
  • Chrome Door Handles
  • Chrome Power-Adjustable Heated Outside Mirrors
  • Electronic Shift Transfer Case
  • EZ-Lift & Lower Tailgate
  • Front License Plate Kit
  • Halogen Projector Headlamps w/LED Signature
  • Heated door mirrors
  • LED Cargo Box Lighting
  • Power door mirrors
  • Rear step bumper
  • Turn signal indicator mirrors
  • 4.2" Diagonal Color Display Driver Info Center
  • Adjustable pedals
  • Auto-Dimming Inside Rear-View Mirror
  • Auto-dimming Rear-View mirror
  • Color-Keyed Carpeting Floor Covering
  • Compass
  • Console Insert Expandable Folder Tote (LPO)
  • Driver & Front Passenger Visors
  • Driver door bin
  • Driver vanity mirror
  • Floor Mounted Console
  • Front & Rear All-Weather Floor Mats
  • Front reading lights
  • Garage door transmitter
  • Illuminated entry
  • Leather-Wrapped Steering Wheel
  • OnStar 6 Months Directions/Connections
  • OnStar w/4G LTE
  • Outside temperature display
  • Overhead console
  • Passenger vanity mirror
  • Power Adjustable Pedals
  • Rear reading lights
  • Rear seat center armrest
  • Rear Vision Camera w/Dynamic Guide Lines
  • Tachometer
  • Telescoping steering wheel
  • Tilt steering wheel
  • Trip computer
  • Ultrasonic Front & Rear Park Assist
  • Voltmeter
  • Front 40/20/40 Split Bench Seat
  • Front Full Feature Bucket Seats
  • Heated & Cooled Driver & Front Passenger Seats
  • Heated Driver & Front Passenger Seats
  • Heated front seats
  • Leather-Appointed Seat Trim
  • Power passenger seat
  • Rear 60/40 Folding Bench Seat (Folds Up)
  • Split folding rear seat
  • Composite Storage Bin Under Rear Seat
  • Front Center Armrest w/Storage
  • Passenger door bin
  • Integrated Trailer Brake Controller
  • Deep-Tinted Glass
  • Variably intermittent wipers
  • *NOW AVAILABLE*
  • Leather Seats
  • Heated and Cooled Seats
  • Navigation/GPS/NAVI
  • Power Lift Gate
  • Backup Camera
  • Remote Start
  • Cruise Control
  • Steering wheel controls
  • USB/AUX ports
  • Bluetooth®
  • Technology
  • Automatic Headlights
  • Touch Screen Controls
  • Blind-Spot Monitors
  • Android Auto/Apple Carplay
  • Wi-Fi Hotspot
  • Heated/Cooled Seats
  • Power Driver Seat
  • 102 point MTMC inspected
  • Freshly Serviced!
  • Full Detail
  • Electrical
    • Cold Cranking Amps @ 0° F (Primary): - TBD -
    • Maximum Alternator Capacity (amps): 150
  • Cooling System
    • Total Cooling System Capacity (qts): - TBD -
  • Weight Information
    • Gross Axle Wt Rating - Front (lbs): 5600
    • Gross Axle Wt Rating - Front (lbs): 4800
    • Gross Axle Wt Rating - Rear (lbs): 7050
    • Curb Weight - Front (lbs): 4652
    • Curb Weight - Front (lbs): 3930
    • Curb Weight - Rear (lbs): 3000
    • Curb Weight - Rear (lbs): 2962
    • Gross Vehicle Weight Rating Cap (lbs): 11000
    • Gross Combined Wt Rating (lbs): 24500
    • Gross Combined Wt Rating (lbs): 20500
  • Trailering
    • Dead Weight Hitch - Max Trailer Wt. (lbs): 5000
    • Dead Weight Hitch - Max Tongue Wt. (lbs): 500
    • Wt Distributing Hitch - Max Trailer Wt. (lbs): 16900
    • Wt Distributing Hitch - Max Trailer Wt. (lbs): 13700
    • Wt Distributing Hitch - Max Tongue Wt. (lbs): 1690
    • Wt Distributing Hitch - Max Tongue Wt. (lbs): 1370
    • Fifth Wheel Hitch - Max Trailer Wt. (lbs): 16900
    • Fifth Wheel Hitch - Max Trailer Wt. (lbs): 13700
    • Fifth Wheel Hitch - Max Tongue Wt. (lbs): 4225
    • Fifth Wheel Hitch - Max Tongue Wt. (lbs): 3425
    • Maximum Trailering Capacity (lbs): 22600
  • Suspension
    • Suspension Type - Front: Independent
    • Suspension Type - Rear: Multi-Leaf
    • Spring Capacity - Front (lbs): 5600
    • Spring Capacity - Front (lbs): 4800
    • Spring Capacity - Rear (lbs): 7050
    • Axle Type - Front: Independent
    • Axle Type - Rear: Full-Floating
    • Axle Capacity - Front (lbs): 5600
    • Axle Capacity - Front (lbs): 4800
    • Axle Capacity - Rear (lbs): 7050
    • Axle Ratio (:1) - Rear: 4.10
    • Shock Absorber Diameter - Front (mm): 51.00
    • Shock Absorber Diameter - Rear (mm): 51.00
    • Stabilizer Bar Diameter - Front (in): 1.31
  • Brakes
    • Brake Type: Pwr
    • Brake ABS System: 4-Wheel
    • Disc - Front (Yes or ): Yes
    • Disc - Rear (Yes or ): Yes
    • Front Brake Rotor Diam x Thickness (in): - TBD -
    • Rear Brake Rotor Diam x Thickness (in): - TBD -
  • Tires
    • Front Tire Order Code: QWF
    • Rear Tire Order Code: QWF
    • Front Tire Size: LT265/70R18E
    • Rear Tire Size: LT265/70R18E
    • Front Tire Capacity (lbs): - TBD -
    • Rear Tire Capacity (lbs): - TBD -
    • Spare Tire Capacity (lbs): - TBD -
    • Revolutions/Mile @ 45 mph - Front: - TBD -
    • Revolutions/Mile @ 45 mph - Rear: - TBD -
    • Revolutions/Mile @ 45 mph - Spare: - TBD -
  • Wheels
    • Front Wheel Size (in): 18 x 8.0
    • Rear Wheel Size (in): 18 x 8.0
    • Front Wheel Material: Aluminum
    • Rear Wheel Material: Aluminum
  • Steering
    • Steering Type: Pwr Recirculating Ball
    • Steering Ratio (:1), On Center: 16.00
    • Steering Ratio (:1), At Lock: N/A
    • Turning Diameter - Curb to Curb (ft): 56.1
    • Turning Diameter - Wall to Wall (ft): N/A
  • Frame
    • Frame Type: Hydroformed
  • Fuel Tank
    • Fuel Tank Capacity, Approx (gal): 36.0
    • Fuel Tank Location: - TBD -
  • Exterior Dimensions
    • Wheelbase (in): 167.70
    • Length, Overall w/o rear bumper (in): 258.4
    • Width, Max w/o mirrors (in): 80.51
    • Height, Overall (in): 78.07
    • Overhang, Front (in): - TBD -
    • Overhang, Rear w/o bumper (in): - TBD -
    • Front Bumper to Back of Cab (in): 151.10
    • Cab to Axle (in): 55.24
    • Cab to End of Frame (in): - TBD -
    • Ground to Top of Load Floor (in): 39.41
    • Ground to Top of Frame (in): - TBD -
    • Frame Width, Rear (in): - TBD -
    • Ground Clearance, Front (in): - TBD -
    • Ground Clearance, Rear (in): 8.53
  • Cargo Area Dimensions
    • Cargo Box Length @ Floor (in): 97.76
    • Cargo Box Width @ Top, Rear (in): - TBD -
    • Cargo Box Width @ Floor (in): - TBD -
    • Cargo Box Width @ Wheelhousings (in): 51.02
    • Cargo Box (Area) Height (in): 21.22
    • Tailgate Width (in): - TBD -
    • Cargo Volume (ft³): 76.3
    • Ext'd Cab Cargo Volume (ft³): - TBD -
  • Interior Dimensions
    • Passenger Capacity: 5
    • Front Head Room (in): 42.80
    • Front Leg Room (in): 45.27
    • Front Shoulder Room (in): 64.84
    • Front Hip Room (in): 60.73
    • Second Head Room (in): 40.50
    • Second Leg Room (in): 40.93
    • Second Shoulder Room (in): 64.33
    • Second Hip Room (in): 60.24
  • Summary
    • Vehicle Name: GMC Sierra 3500HD
    • Body Style: Crew Cab Pickup
    • Body Code: E63
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May not represent actual vehicle. (Options, colors, trim and body style may vary)