2018 GMC Sierra 2500 Accessories & Parts

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Auto Parts & Accessories

2018 GMC Sierra 2500 Parts

2018 GMC Sierra 2500 Wheels & Tires

2018 GMC Sierra 2500 Exterior Accessories

2018 GMC Sierra 2500 Automotive Lighting

2018 GMC Sierra 2500 Body Parts

2018 GMC Sierra 2500 Interior Accessories

2018 GMC Sierra 2500 Audio & Electronics

2018 GMC Sierra 2500 Automotive Tools

The legendary style and hard-working capability of Sierra HD trucks have established their world-class reputation. Closely related to the Silverado HD, these big and highly capable pickup trucks are more superior in terms of luxury. The GMC Sierra 2500HD is slotted right below the more powerful Sierra 3500HD and above the smaller 1500 model. The 2018 Sierra 2500HD introduces a few changes like new exterior colors and upgraded standard features. It comes in 4 trims, including Sierra, SLE, SLT, and the most premium one – the Denali. GMC offers much versatility, so customers can choose between three cab styles (regular, double, or crew cab) and two bed lengths (78.9 or 97.8 in), besides, both rear-wheel and four-wheel drive are available.

For the 2018 model year, the base Sierra 2500HD receives a rearview camera and a 7’’ touchscreen as standard, while the top-of-the-line Denali trim gets a new stylish grille. Among its highlights are such optional features as 4G Wi-Fi spot that lets you always stay connected to the Internet while driving your vehicle, heated and ventilated perforated front-seating with leather upholstery, and a special Ecomaster trailering camera system allowing multiple simultaneous views for your confidence.

When fully outfitted, the 2018 Sierra 2500 is capable of towing up to 18,100 pounds and hauling the maximum payload of 3,534 pounds. The truck gets its mighty power from either a Vortec 6.0L V8 or a 6.6L Duramax diesel engine. The former, mated to a 6-speed heavy-duty automatic transmission, makes 360 hp and 380 lb.-ft. of torque. It features variable valve timing that is meant to optimize top-end power and low-end torque. The second one is even more powerful; it comes as an option and produces 445 hp and 910 lb.-ft of torque.

The 2018 Sierra 2500HD is a perfect option for those who are not ready to get engaged with the monstrous one-ton Sierra 3500HD, but require more capability than the compact Sierra 1500 can deliver. We share your passion for hard-working, rugged vehicles and therefore, we provide a wide choice of 2018 GMC Sierra 2500 accessories and parts to satisfy all your automotive needs. In our catalog, you will find replacement parts, truck steps, wheels & tires, interior and exterior upgrades, tow hitches, tonneau covers, and many others kinds of 2018 GMC Sierra 2500 accessories and parts, developed by reliable manufacturers. For ease of usage, we have carefully sorted our assortment of 2018 GMC Sierra 2500 parts and accessories, so you can look through different categories and find exactly what you need within several minutes.

Want to make your 2018 GMC Sierra 2500 one of a kind, keep it running at its peak, or turn it into a high-powered beast? Our vast selection of premium accessories and parts ticks all the boxes. Quality is at the heart of everything we do at CARiD, so whatever your project, our brand name products and qualified experts will ensure success. Class. Luxury. Durability. We have it all, and we're always here with everything you need to keep your 2018 GMC Sierra 2500 in tip top shape, inside and out.

2018 GMC Sierra 2500 Specifications

Engine6.0 L
V8 Vortec V-8 VVT (L96)
6.6 L
V8 Duramax Turbo Diesel (L5P)
FuelFlexible Fuel Vehicle ( regular unleaded or E85 )DIESEL (B20 biodiesel capable)
Transmission6-Speed automatic (6L90)6-Speed automatic (Allison® 1000 Series)
Gear Ratio0.67
Drivetrain4WD / RWD
Power HP360 hp @ 5,400 RPM445 hp @ 2,800 RPM
Torque380 lb-ft @ 4,200 RPM / 515 Nm910 lb-ft @ 1,600 RPM / 1234 Nm
0-606.7 sec6.2 sec
Top Speed100 mph
Weight5741 - 6242 lbs
Long Box 9,500/9,900
St Box 9,500/10,000
Lg Box 9,500/10,000
St Box 9,500/10,000
Lg Box 9,900/10,000
Payload Capacity (lbs.)2356 - 3534 lbs
Towing capacity (lbs.)13000 - 18100 (max with Duramax Turbo Diesel ) lbs
WheelbaseRegular cab - 133.6 in (long box)
Double cab - 144.2 in (standard box) / 158.1 in (long box)
Crew cab - 153.7 in (standard box) / 167.7 in (long box)
Bed LengthRegular Cab
SB 78.9 in
LB 97.8 in

Double Cab
SB 78.9 in
LB 97.8 in

Crew Cab
SB 78.9 in
LB 97.8 in
LegroomRegular Cab
Front / Back: 45.3 in / -

Double Cab
Front / Back: 45.3 in / 34.6 in

Crew Cab
Front / Back: 45.3 in / 40.9 in
Width80.5 in
LengthRegular cab - 224.4 in (long box)
Double cab - 230 in (standard box) / 248.9 in (long box)
Crew cab - 239.5 in (standard box) / 258.4 in (long box)
HeightRegular cab - 77.3-77.9 in (long box)
Double cab - 77.6 in (standard box) / 78.1 in (long box)
Crew cab - 77.8 in (standard box) / 78.3 in (long box)
Tire SizeLT245/75R17 10PR 7Jx17 ET50
LT265/70R17 10PR 7.5Jx17 ET44
LT265/70R18 10PR 8Jx18 ET44
LT265/60R20 10PR 8Jx20 ET44
LT265/50R22 10PR 8.5Jx22 ET40
3.4 / 5.2 (tire pressure)
LT245/75R17 10PR 7.5Jx17 ET44
3.4 / 5.2 (tire pressure)
LT265/70R17 10PR 7.5Jx17 ET44
3.4 / 5.2 (tire pressure)
LT265/70R18 10PR 8Jx18 ET44
3.4 / 5.2(tire pressure)
LT265/60R20 10PR 8.5Jx20 ET44
3.4 / 5.2 (tire pressure)
LT275/50R22 10PR 9Jx22 ET40
3.6 / 5.4 (tire pressure)
Wheel Bolt Pattern8x180
SeatsRegular cab - 3
Double cab - 5 (6)
Crew Cab - 5 (6)
EPA-estimated mpg12 combi18 hwy/ 15 combi
Lights High-Intensity Discharge (HID) projector-beam headlamps.
Includes GMC signature LED lighting.
Tank Capacity36 gal
PriceBase from $40,195
SLE from $46,495
SLT from $51,695
Denali from $57,795
3 Years/36,000 Miles
5 Years/60,000 Miles
3 Years/36,000 Miles
Roadside Assistance:
5 Years/60,000 Miles
2 Years/24,000 Miles
Brakes4-wheel disc with 4-wheel antilock (includes Duralife brake rotors)
SuspensionFront independent with torsion bars. Includes 33 mm front stabilizer bar
Rear multileaf springs, semielliptical with urethane jounce bumpers
Safety / SecurityAIR BAGS3 Single-stage frontal for driver and front passenger on all 3500HD models and 2500HD Crew
Cab models. Includes dual-stage front-passenger air bag with infant-only Passenger Sensing System on
2500HD Regular Cab and 2500HD Double Cab models with a pickup box.
Front-seat-mounted side-impact driver and right front-passenger air bags for thorax and pelvis protection.
Included on all 2500HD and select 3500HD models. See your dealer for more details and availability.
Front and rear head-curtain air bags for all outboard seating positions. Included on all 2500HD models. See
your dealer for more details and availability.
DAYTIME RUNNING LAMPS With automatic lamp controlLANE DEPARTURE WARNING AND FORWARD COLLISION ALERT Included and only available with Driver
Alert Package. On SLE trim, requires Regular Cab.
(SLE, SLT, Denali)
SAFETY ALERT SEAT Included and only available with Driver Alert Package. On SLE trim, requires
Regular Cab.
(SLE, SLT, Denali)
THEFT-DETERRENT SYSTEM Unauthorized entry. Included and only available with Remote Vehicle Starter
System on SLE trim.
(SLE, SLT, All Terrain, Denali)
TIRE PRESSURE MONITORING SYSTEM Includes Tire Fill Alert on all single-rear-wheel models. Does not
monitor spare tire.
Safety RatingNHTSA 4 Stars Overall Rating

2018 GMC Sierra 2500 Accessories Reviews

14 reviews
5 of 5
Lloyd Northridge Custom Fit Floor Mats
Lloyd® - NorthRidge™ Custom Fit Floor Mats
I love everything about my mats. They are durable, cost effective, and have a great design.
Posted by Customer / June 10, 20212018 BMW X1
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