2018 GMC Sierra Accessories & Parts
2018 GMC Sierra Parts
2018 GMC Sierra Wheels & Tires
2018 GMC Sierra Exterior Accessories
- Running Boards
- Custom Grilles
- Chrome Trim
- Body Kits
- Off-Road Bumpers
- Bed Accessories
- Grille Guards
- Towing & Hitches
- Headlights
- Tail Lights
- Tonneau Covers
- Spoilers
- Wind Deflectors
- Custom Hoods
- Roof Racks
- Car Covers
- Fender Flares
- Mirrors
- Bug Deflectors
- Car Bras
- License Plates & Frames
- Vertical Doors
- Light Covers
- Winches
- Bike Racks
- Wiper Blades
- Mud Flaps
- Emblems & Logos
- Sunroof Visors
- Armor & Protection
- Car Wraps
- Car Tents
- Snow Plows
- Custom Horns
- Spare Tire Covers & Carriers
- Auto Detailing
2018 GMC Sierra Automotive Lighting
2018 GMC Sierra Body Parts
2018 GMC Sierra Interior Accessories
2018 GMC Sierra Audio & Electronics
- Installation Parts
- Speakers
- Amplifiers
- Cameras & Driver Safety
- Alarms & Remote Start
- CB Radios & Components
- Antennas & Components
- Mobile Phone Cables & Connectors
- Stereos
- Subwoofers
- Bluetooth
- Equalizers & Processors
- Batteries & Power
- Video
- Radar Detectors
- GPS Systems
- Mounts & Chargers
- Action Cameras & Accessories
2018 GMC Sierra Automotive Tools
- Oil Change Tools
- Spark Plug & Ignition Tools
- Wheel & Tire Service Tools
- Engine Service Tools
- Brake Service Tools
- Suspension & Steering Service Tools
- Fuel System Service
- Transmission & Drivetrain Service Tools
- Pullers & Installers
- Cooling System Service Tools
- A/C Tools & Equipment
- Electrical System Tools
- Diagnostic & Testing Tools
- Auto Glass Tools
- Lockout Kits
- Automotive Lifts & Stands
- Repair Manuals
- Automotive Paint
- Exhaust System Service Tools
- Jacks
- EV Charging
- Battery Chargers & Jump Starters
- Dollies & Movers
- Creepers
- Auto Detailing
- Key Cutting Machines
- Dent Repair Tools
- Service Carts
- Vehicle & Parts Protection
The GMC Sierra enters the 2018 model year offering only minor changes. The base 1SA grade received a rear-vision camera and 7” Color Touch radio with smartphone compatibility, regular cab variants also come with a 6-speaker sound system. TPMS now provides an audible tire fill alert that indicates when your tire is inflated to the recommended level. Two new exterior colors were added to the lineup. The 2018 GMC Sierra continues to offer three engine options, with a 4.3 L V6 that serves up 285 hp as the base one. A 5.3 L V8 good for 355 hp is available as an option. The truck can also be fitted with a 6.2 L V8 capable of producing 420 hp, which is the most potent gas V8 power plant in this class. A 6-speed automatic is the base gearbox, with an 8-speed one offered optionally. Crew cab variants of the truck provide the highest towing capacity in the segment that is rated at 12,500 lb.
The bed of the 2018 GMC Sierra is made from roll-formed steel for higher durability and reduced weight. It can be optionally fitted with a spray-on bedliner that provides excellent protection from scratches and dings. The pickup truck also extensively uses galvanized sheet metal in order to minimize corrosion. Brake rotors of the model are protected from corrosion too and provide significantly longer lifespan compared to conventional rotors. An automatic locking differential is offered as an option. It promptly reacts in low-traction situations, enhancing safety and your confidence on wet, muddy, or snowy roads. The Sierra features 6 airbags and StabiliTrak system as standard. StabiliTrak includes trailer sway control, rollover mitigation, and hill-start assist.
The 2018 GMC Sierra is available in four grades, being the 1SA, SLE, SLT, and Denali, and three traditional cab styles. Three bed options are offered – 5.8-ft, 6.6-ft, and 8-ft ones, all available with AWD. The interior of the model offers high-grade materials and soft-touch dash and door trim. The cab is incredibly quiet thanks to numerous dedicated features like aerodynamic mirrors, triple door sills, etc. The steering wheel, dashboard, and center console feature aluminum trim accents.
Scheduled maintenance is a must if you want to keep your pickup performing at its peak. If that is the case and you need 2018 GMC Sierra parts to do this job, our store is your number one go-to source. Our catalog features lots of high-grade 2018 GMC Sierra accessories and parts for any automotive needs, from changing oil to improving performance. Choose from our selection of premium quality 2018 GMC Sierra accessories and parts offered at prices you can afford.
Want to make your 2018 GMC Sierra 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 in tip top shape, inside and out.
Popular Accessories
- Bumper Spoilers
- Factory Tail Lights
- Black Tail Lights
- LED Tail Lights
- Cigarette Lighters + Components
- Fender Moldings + Trim
- Rear Bumpers
- Side View Mirrors
- Steering
- A/C & Heating
- A/C Hoses
- Amplifier Installation
- Chassis Frame Hardware
- Custom Tail Lights
- Diesel Emission
- Factory Fog Lights
- Fiber Optic Tail Lights
- Hoods
Popular Products
2018 GMC Sierra Specifications
Submodel | 1500 | 2500 HD | 3500 HD | ||||
---|---|---|---|---|---|---|---|
Engine | 4.3 L | 5.3 L | 6.2 L | 6.0 | 6.6 | 6.0 | 6.6 |
Engine type | V6 Ecotec V-6 VVT DI | V8 Ecotec V-8 VVT DI | V8 Ecotec V-8 V-8 VVT DI | V8 Vortec V-8 VVT (L96) | V8 Duramax Turbo Diesel (L5P) | V8 Vortec | V8 Duramax Turbo Diesel (L5P) |
Fuel | Flexible Fuel Vehicle (E85) | GAS Flexible Fuel Vehicle (E85) | GAS | Flexible Fuel Vehicle (E85) | DIESEL (B20 biodiesel capable) | Flexible Fuel Vehicle (E85) | DIESEL |
Transmission | 6-Speed automatic (6L80) | 8-Speed automatic (8L90) | 6-Speed automatic (6L90) | 6-Speed automatic (Allison® 1000 Series) | 6-Speed automatic | ||
Gear Ratio | 0.67 | 0.65 | 0.67 | 0.67 | |||
Drivetrain | 4WD / RWD | 4WD / RWD | 4WD / RWD | ||||
Power HP | 285 hp @ 5,300 RPM | 355 hp @ 5,600 RPM | 420 hp @ 5,600 RPM | 360 hp @ 5,400 RPM | 445 hp @ 2,800 RPM | 360 | 445 hp @ 2,800 RPM |
Torque | 305 lb-ft @ 3,900 RPM / 414 Nm | 383 lb-ft @ 4,100 RPM / 519 Nm | 460 lb-ft @ 4,100 RPM / 624 Nm | 380 lb-ft @ 4,200 RPM / 515 Nm | 910 lb-ft @ 1,600 RPM / 1234 Nm | 380 / 515 | 910 lb-ft @ 1,600 RPM / 1234 Nm |
0-60 | 7.2s | 6.4s | 5.7s | 6.7s | 6.2s | 6.7s | 6.2s |
Top Speed | 100 mph | 100 mph | 100 mph | ||||
Weight | 4500 - 5000 lbs | 5741 - 6242 lbs | 5985 - 6551 lbs | ||||
GVWR | 6500 - 6800 lbs (Reg Cab) 6900 - 7400 lbs (Double Cab) 6900 - 7400 lbs (Crew Cab) | REGULAR CAB Long Box 9,500/9,900 DOUBLE CAB St Box 9,500/10,000 Lg Box 9,500/10,000 CREW CAB St Box 9,500/10,000 Lg Box 9,900/10,000 | REGULAR CAB SRW 10,700/11,400 DRW 13,500/13,025 DOUBLE CAB SRW 11,000/11,600 DRW 13,025/13,025 CREW CAB SRW 11,000/11,600 DRW 13,025/13,025 | ||||
Payload Capacity (lbs.) | Regular Cab Standard Box 2WD / 4WD: 1,960 / 1,880 Regular Cab Long Box 2WD / 4WD: 1,980 / 1,920 Double Cab Standard Box 2WD / 4WD: 1,890 / 1,840 Crew Cab Short Box 2WD / 4WD: 1,840 / 1,770 | Regular Cab Standard Box 2WD / 4WD: 1,920 / 1,870 Regular Cab Long Box 2WD / 4WD: 1,980 / 1,930 Double Cab Standard Box 2WD / 4WD: 1,890 - 2,200 / 1,850 - 2,220 Crew Cab Short Box 2WD / 4WD: 1,810 - 2,170 / 1,760 - 2,120 | Double Cab Standard Box 2WD / 4WD: 1,820 - 2,150 / 1,780 - 2,110 Crew Cab Short Box 2WD / 4WD: 1,740 - 2,080 / 1,690 - 2,030 Crew Cab Standard Box 4WD: 1,640 - 1,980 | 2356 - 3534 lbs | 3821 - 7153 | ||
Towing capacity (lbs.) | Regular Cab Standard Box 2WD / 4WD: 6,000 / 7,600 Regular Cab Long Box 2WD / 4WD: 5,900 / 7,400 Double Cab Standard Box 2WD / 4WD: 5,600 / 7,100 Crew Cab Short Box 2WD / 4WD: 5,500 / 7,000 | Regular Cab Standard Box 2WD / 4WD: 6,900 - 8,900 / 6,600 - 8,600 Regular Cab Long Box 2WD / 4WD: 6,800 - 9,800 / 6,500 - 9,500 Double Cab Standard Box 2WD / 4WD: 6,400 - 11,100 / 6,200 - 10,800 Crew Cab Short Box 2WD / 4WD: 6,400 - 11,000 / 6,100 - 10,700 | Double Cab Standard Box 2WD / 4WD: 9,400 - 12,500 / 9,100 - 11,800 Crew Cab Short Box 2WD / 4WD: 9,300 - 12,500 / 9,100 - 11,700 Crew Cab Standard Box 4WD: 9,000 - 11,700 | 13000 - 18100 (max with Duramax Turbo Diesel ) lbs | 13000 - 23300 lbs lbs | ||
Wheelbase | Regular cab - 119 in (short box) / 133 in (long box) Double cab - 143.5 in (standard box) Crew cab - 143.5 in (short box) / 153 in (standard) | Regular 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) | Regular 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 Length | Regular Cab SB 78.9 in LB 97.8 in Double Cab SB 78.9 in LB 97.8 in Crew Cab SB 69.3 in LB 78.9 in | Regular 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 | Regular 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 | ||||
Legroom | Regular 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 | Regular 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 | Regular Cab Front / Back: 45.3 in / - Double Cab Front / Back: 45.3 in / 34.7 in Crew Cab Front / Back: 45.3 in / 40.9 in | ||||
Width | 80 in | 80.5 in | 80.5 in | ||||
Length | Regular cab - 205.6 in (short box) / 224.4 in (long box) Double cab - 230 in (standard) Crew cab - 230 in (short box) / 239.6 in (standard) | Regular 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) | Regular 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) | ||||
Height | 73.5 in - 74.2 in | Regular 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) | Regular cab - 77.9 in (long box) Double cab - 77.7 in (standard box) / 78.1 in (long box) Crew cab - 77.8 in (standard box) / 78.4 in (long box) | ||||
Tire Size | LT245/75R17-7.5Jx17 ET31 2.4( tire pressure) LT255/70R17 110S-7.5Jx17 ET31 2.4 (tire pressure) LT265/70R17 112S-8Jx17 ET24 2.4 (tire pressure) LT265/65R18 112S-8Jx18 ET24 2.4 (tire pressure) LT275/55R20 110H-9Jx20 ET24 2.5 (tire pressure) | LT255/70R17 110S-7.5Jx17 ET31 2.4 (tire pressure) LT265/70R17 112S-8Jx17 ET24 2.4 (tire pressure) LT265/65R18 112S-8Jx18 ET24 2.4 (tire pressure) LT265/70R18 113S-8Jx18 ET24 2.4 (tire pressure) LT275/55R20 110H-9Jx20 ET24 2.5 (tire pressure) | LT265/70R17 110S-8Jx17 ET24 2.4 (tire pressure) LT265/65R18 112H-8Jx18 ET24 2.4 (tire pressure) LT265/70R18 113S-8Jx18 ET24 2.4 (tire pressure) LT275/55R20 108H-9Jx20 ET24 2.5 (tire pressure) LT285/45R22 110V-9Jx22 ET24 2.6 (tire pressure) | LT245/75R17 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) | LT265/70R18 10PR-8Jx18 ET44 LT265/60R20 10PR-8.5Jx20 ET44 | LT265/70R18 10PR-8Jx18 ET44 LT265/60R20 10PR-8.5Jx20 ET44 |
Wheel Bolt Pattern | 6x139.7 | 8x180 | 8x180 | ||||
Seats | Regular cab - 3 Double cab - 5 (6) Crew Cab - 5 (6) | Regular cab - 3 Double cab - 5 (6) Crew Cab - 5 (6) | Regular cab - 3 Double cab - 5 (6) Crew Cab - 5 (6) | ||||
EPA-estimated mpg | 18 city/ 24 hwy/ 21 combi | 16 city/ 23 hwy/ 19 combi | 15 city/ 21 hwy/ 18 combi | 18 hwy/ 15 combi | 12 | 15 | |
Lights | Headlamps, High-Intensity Discharge (HID), bifunctional with GMC LED signature lighting High-performance LED headlamps with GMC signature lighting | High-Intensity Discharge (HID) projector-beam headlamps | High-Intensity Discharge (HID) projector-beam headlamps. | ||||
Tank Capacity | 26 gal | 36 gal | 36 gal | ||||
Price | Base ( Sierra ) from $36,895 SLE from $42,095 SLT from $46,595 Denali from $54,295 | Base from $40,195 SLE from $46,495 SLT from $51,695 Denali from $57,795 | Base from $41,995 SLE from $47,695 SLT from $52,795 Denali from $57,795 | ||||
Warranty | Basic:
3 Years/36,000 Miles Drivetrain: 5 Years/60,000 Miles Corrosion: 3 Years/36,000 Miles Roadside Assistance: 5 Years/60,000 Miles Maintenance: 2 Years/24,000 Miles | Basic: 3 Years/36,000 Miles Drivetrain: 5 Years/60,000 Miles Corrosion: 3 Years/36,000 Miles Roadside Assistance: 5 Years/60,000 Miles Maintenance: 2 Years/24,000 Miles | Basic:
3 Years/36,000 Miles Drivetrain: 5 Years/60,000 Miles Corrosion: 3 Years/36,000 Miles Roadside Assistance: 5 Years/60,000 Miles Maintenance: 2 Years/24,000 Miles | ||||
Brakes | 4-wheel disc, 4-wheel antilock with Duralife rotors | 4-wheel disc with 4-wheel antilock (includes Duralife brake rotors) | 4-wheel disc with 4-wheel antilock (includes Duralife brake rotors) | ||||
Suspension | Front: Coil-Over-Shock Rear: Semi-Elliptical 2-stage Multilieaf springs | Front independent with torsion bars. Includes 33 mm front stabilizer bar Rear multileaf springs, semielliptical with urethane jounce bumpers | Front independent with torsion bars. Includes 33 mm front stabilizer bar
Rear multileaf springs, semielliptical with urethane jounce bumpers | ||||
Safety / Security | AIR BAGS8 Dual-stage frontal for driver and front passenger with Passenger Sensing System Front-seat-mounted side-impact driver and right front-passenger air bags for thorax and pelvis protection Front and rear head-curtain air bags for all outboard seating positions LED DAYTIME RUNNING LAMPS LANE KEEP ASSIST WITH LANE DEPARTURE WARNING AND FORWARD COLLISION ALERT Included and only available with Enhanced Driver Alert Package. On SLE, requires Regular Cab model. (SLE, SLT, Denali) LOW SPEED FORWARD AUTOMATIC BRAKING Included and only available with Enhanced Driver Alert Package. On SLE, requires Regular Cab model. (SLE, SLT, Denali) REAR VISION CAMERA SYSTEM With dynamic grid lines SAFETY ALERT SEAT Included and only available with Enhanced Driver Alert Package. On SLE, requires Regular Cab model. (SLE, SLT, Denali) THEFT-DETERRENT SYSTEM Unauthorized entry. Included and only available with remote vehicle starter system on SLE. (SLE, Elevation Edition SLE, SLT, All Terrain, Denali) TIRE PRESSURE MONITORING SYSTEM Includes Tire Fill Alert. Does not monitor spare tire. Tire Fill Alert not available with ZW9 Box Delete. | AIR 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. | AIR 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 Rating | NHTSA 5 Stars Overall Rating | NHTSA 4 Stars Overall Rating | NHTSA - N/A |