2026 GMC Sierra 3500HD: Price, Safety & Specifications

Q: What vehicles compete with the 2026 GMC Sierra 3500HD?

Based on price range, body type, and segment positioning, the closest competitors to the 2026 GMC Sierra 3500HD include 2026 Toyota Tundra, 2026 Honda Ridgeline, and 2026 Ford F-150. Each page includes the same safety, fuel cost, reliability, and recall data so you can compare directly.

Latest source update: April 2026 — NHTSA, EPA, AAA, RepairPal

The 2026 GMC Sierra 3500HD lands in the middle of its segment among mid-range Trucks. NHTSA has no recall campaigns on file for this vehicle.

Starting MSRP: $47,900 - $101,300
EPA Combined MPG: 18 MPG
Est. Annual Fuel Cost: $2,450 per year
EPA GHG Score: 3 / 10
Recalls on File: No recalls on file
EPA: vs Avg Vehicle: $4,500 more over 5 yrs
Est. Monthly Cost (with fuel): $1,436 per month
Est. Cost per Mile (with fuel): $0.99
Brand Origin: United States

—SafetyNot yet crash-tested

CFuel CostAverage fuel cost among gas Trucks

3.5/5ReliabilityRepairPal rating

CleanRecallsNo recalls since 2026

How we collect and verify data

The 2026 GMC Sierra 3500HD is a 32-trim truck priced from $47,900 to $101,300. Below is the safety, fuel, reliability, and ownership cost data that matters for a vehicle built for heavy use.

5-year ownership cost $7,881 above mid-range Trucks average
Zero recalls on file (Truck (Regular Cab) average: 2.6)

NHTSA focuses on how the vehicle protects occupants in government-standard crashes. IIHS also evaluates crash avoidance technology and headlight performance, which matter for preventing collisions in the first place.

A strong crash test result tells you the vehicle was well-engineered for collisions. The recall record tells you whether any defects have been found after production began.

Does the 2026 GMC Sierra 3500HD Have Any Recalls?

NHTSA Applies to all trims Data as of April 2026

As of the data shown, NHTSA has not issued any recall campaigns for the 2026 GMC Sierra 3500HD. The average for Trucks is 2.6 campaigns. Source: NHTSA.

No recalls on file with NHTSA

What Do 2026 GMC Sierra 3500HD Owners Report to NHTSA?

NHTSA complaint data is not available for the 2026 GMC Sierra 3500HD. This does not mean there are no complaints. The model may not yet be tracked in the NHTSA database.

Source: NHTSA Vehicle Complaints Database. Data last refreshed 2026-04-16.

For a vehicle that sees heavy use, fuel cost is a major budget item. Trucks consume more fuel than most vehicle types, so the efficiency gap between trims is felt at every fill-up.

What Is the 2026 GMC Sierra 3500HD Fuel Economy?

EPA Varies by trim Data as of April 2026

EPA rates the most efficient 2026 GMC Sierra 3500HD trim at 18 combined MPG, with a projected annual fuel cost near $2,450. That is roughly in line with the $2,499 average for mid-range Trucks. Source: EPA.

Trim	Combined	City	Highway	Annual Fuel Cost
Pro 2dr Regular Cab LB (6.6L 8cyl 10A)	18 MPG	16	21	$2,450 per year
Pro 2dr Regular Cab LB DRW (6.6L 8cyl 10A)	18 MPG	16	21	$2,450 per year
Pro 4dr Double Cab LB (6.6L 8cyl 10A)	18 MPG	16	21	$2,450 per year
Pro 2dr Regular Cab 4WD LB (6.6L 8cyl 10A)	18 MPG	16	21	$2,450 per year
Pro 4dr Double Cab LB DRW (6.6L 8cyl 10A)	18 MPG	16	21	$2,450 per year
Pro 4dr Crew Cab SB (6.6L 8cyl 10A)	18 MPG	16	21	$2,450 per year
Pro 4dr Crew Cab LB (6.6L 8cyl 10A)	18 MPG	16	21	$2,450 per year
Pro 2dr Regular Cab 4WD LB DRW (6.6L 8cyl 10A)	18 MPG	16	21	$2,450 per year
Pro 4dr Double Cab 4WD LB (6.6L 8cyl 10A)	18 MPG	16	21	$2,450 per year
Pro 4dr Crew Cab LB DRW (6.6L 8cyl 10A)	18 MPG	16	21	$2,450 per year
Pro 4dr Double Cab 4WD LB DRW (6.6L 8cyl 10A)	18 MPG	16	21	$2,450 per year
Pro 4dr Crew Cab 4WD SB (6.6L 8cyl 10A)	18 MPG	16	21	$2,450 per year
Pro 4dr Crew Cab 4WD LB (6.6L 8cyl 10A)	18 MPG	16	21	$2,450 per year
SLE 2dr Regular Cab 4WD LB (6.6L 8cyl 10A)	18 MPG	16	21	$2,450 per year
Pro 4dr Crew Cab 4WD LB DRW (6.6L 8cyl 10A)	18 MPG	16	21	$2,450 per year
SLE 2dr Regular Cab 4WD LB DRW (6.6L 8cyl 10A)	18 MPG	16	21	$2,450 per year
SLE 4dr Double Cab 4WD LB (6.6L 8cyl 10A)	18 MPG	16	21	$2,450 per year
SLE 4dr Double Cab 4WD LB DRW (6.6L 8cyl 10A)	18 MPG	16	21	$2,450 per year
SLE 4dr Crew Cab 4WD SB (6.6L 8cyl 10A)	18 MPG	16	21	$2,450 per year
SLE 4dr Crew Cab 4WD LB (6.6L 8cyl 10A)	18 MPG	16	21	$2,450 per year
SLE 4dr Crew Cab 4WD LB DRW (6.6L 8cyl 10A)	18 MPG	16	21	$2,450 per year
SLT 4dr Crew Cab 4WD SB (6.6L 8cyl 10A)	18 MPG	16	21	$2,450 per year
SLT 4dr Crew Cab 4WD LB (6.6L 8cyl 10A)	18 MPG	16	21	$2,450 per year
SLT 4dr Crew Cab 4WD LB DRW (6.6L 8cyl 10A)	18 MPG	16	21	$2,450 per year
AT4 4dr Crew Cab 4WD SB (6.6L 8cyl 10A)	18 MPG	16	21	$2,450 per year
AT4 4dr Crew Cab 4WD LB (6.6L 8cyl 10A)	18 MPG	16	21	$2,450 per year
Denali 4dr Crew Cab 4WD SB (6.6L 8cyl 10A)	18 MPG	16	21	$2,450 per year
Denali 4dr Crew Cab 4WD LB (6.6L 8cyl 10A)	18 MPG	16	21	$2,450 per year
Denali 4dr Crew Cab 4WD LB DRW (6.6L 8cyl 10A)	18 MPG	16	21	$2,450 per year
Denali Ultimate 4dr Crew Cab 4WD SB (6.6L 8cyl Turbodiesel 10A)	18 MPG	16	21	$2,450 per year
Denali Ultimate 4dr Crew Cab 4WD LB (6.6L 8cyl Turbodiesel 10A)	18 MPG	16	21	$2,450 per year
Denali Ultimate 4dr Crew Cab 4WD LB DRW (6.6L 8cyl Turbodiesel 10A)	18 MPG	16	21	$2,450 per year

Estimated 5-year fuel cost is $12,250 based on EPA data.

The most efficient trim ranks in the top 12% for fuel cost within its EPA vehicle class.

Trucks cost more to insure and maintain than most vehicle types. AAA estimates what those costs add up to for the Half-Ton Pickup class, including tires, brakes, and depreciation.

What Does the 2026 GMC Sierra 3500HD Cost to Own?

AAA Estimated for Half-Ton Pickup

These are averages for the Half-Ton Pickup class, not specific to this model. Your actual costs will depend on your location, driving history, and vehicle condition.

Data as of March 2026

Estimated 5-year total ownership cost for the 2026 GMC Sierra 3500HD ranges from $106,670 to $160,070 depending on trim, based on AAA's Your Driving Costs study for the Half-Ton Pickup class. This includes insurance, maintenance, depreciation, registration, and financing. These are class averages, not specific to this model. Source: AAA.

Maintenance	$1,871 per year
Insurance	$1,898 per year
Depreciation	$5,535 per year
Registration & Taxes	$984 per year
Financing	$1,922 per year
Total (excluding fuel)	$14,781 per year
Cost per mile	$0.99 per mile

Truck trims can vary by thousands of dollars and significant capability differences. The table below compares towing capacity, drivetrain, fuel economy, and cost across all 32 options.

How Do the 2026 GMC Sierra 3500HD Trims Compare?

Manufacturer Per trim Data as of March 2026

With 32 trims priced from $47,900 to $101,300, the 2026 GMC Sierra 3500HD offers a range of equipment levels. Trims are available with Gasoline and Diesel powertrains, which affects fuel economy and pricing. MSRP figures below do not include destination, taxes, or dealer fees.

Trim

Base MSRP

Drive Type

Horsepower

Curb Weight

Est. 5-Year Cost

Pro 2dr Regular Cab LB (6.6L 8cyl 10A)

$47,900

RWD

401 hp

6,329 lbs

$106,670

Pro 2dr Regular Cab LB DRW (6.6L 8cyl 10A)

$49,300

RWD

401 hp

6,672 lbs

$108,070

Pro 4dr Double Cab LB (6.6L 8cyl 10A)

$50,000

RWD

401 hp

6,798 lbs

$108,770

Pro 2dr Regular Cab 4WD LB (6.6L 8cyl 10A)

$50,700

4WD

401 hp

6,672 lbs

$109,470

Pro 4dr Double Cab LB DRW (6.6L 8cyl 10A)

$51,400

RWD

401 hp

7,142 lbs

$110,170

Pro 4dr Crew Cab SB (6.6L 8cyl 10A)

$51,600

RWD

401 hp

6,823 lbs

$110,370

Pro 4dr Crew Cab LB (6.6L 8cyl 10A)

$51,800

RWD

401 hp

6,965 lbs

$110,570

Pro 2dr Regular Cab 4WD LB DRW (6.6L 8cyl 10A)

$52,100

4WD

401 hp

7,015 lbs

$110,870

Pro 4dr Double Cab 4WD LB (6.6L 8cyl 10A)

$52,800

4WD

401 hp

7,106 lbs

$111,570

Pro 4dr Crew Cab LB DRW (6.6L 8cyl 10A)

$53,200

RWD

401 hp

7,298 lbs

$111,970

Show 22 more trim(s)

Pro 4dr Double Cab 4WD LB DRW (6.6L 8cyl 10A)	$54,200	4WD	401 hp	7,449 lbs	$112,970
Pro 4dr Crew Cab 4WD SB (6.6L 8cyl 10A)	$54,400	4WD	401 hp	7,144 lbs	$113,170
Pro 4dr Crew Cab 4WD LB (6.6L 8cyl 10A)	$54,600	4WD	401 hp	7,244 lbs	$113,370
SLE 2dr Regular Cab 4WD LB (6.6L 8cyl 10A)	$54,700	4WD	401 hp	6,672 lbs	$113,470
Pro 4dr Crew Cab 4WD LB DRW (6.6L 8cyl 10A)	$56,000	4WD	401 hp	7,578 lbs	$114,770
SLE 2dr Regular Cab 4WD LB DRW (6.6L 8cyl 10A)	$56,200	4WD	401 hp	7,015 lbs	$114,970
SLE 4dr Double Cab 4WD LB (6.6L 8cyl 10A)	$57,000	4WD	401 hp	7,106 lbs	$115,770
SLE 4dr Double Cab 4WD LB DRW (6.6L 8cyl 10A)	$58,400	4WD	401 hp	7,449 lbs	$117,170
SLE 4dr Crew Cab 4WD SB (6.6L 8cyl 10A)	$58,600	4WD	401 hp	7,144 lbs	$117,370
SLE 4dr Crew Cab 4WD LB (6.6L 8cyl 10A)	$58,800	4WD	401 hp	7,244 lbs	$117,570
SLE 4dr Crew Cab 4WD LB DRW (6.6L 8cyl 10A)	$60,100	4WD	401 hp	7,578 lbs	$118,870
SLT 4dr Crew Cab 4WD SB (6.6L 8cyl 10A)	$65,900	4WD	401 hp	7,144 lbs	$124,670
SLT 4dr Crew Cab 4WD LB (6.6L 8cyl 10A)	$66,100	4WD	401 hp	7,244 lbs	$124,870
SLT 4dr Crew Cab 4WD LB DRW (6.6L 8cyl 10A)	$67,500	4WD	401 hp	7,578 lbs	$126,270
AT4 4dr Crew Cab 4WD SB (6.6L 8cyl 10A)	$72,800	4WD	401 hp	7,417 lbs	$131,570
AT4 4dr Crew Cab 4WD LB (6.6L 8cyl 10A)	$73,000	4WD	401 hp	7,529 lbs	$131,770
Denali 4dr Crew Cab 4WD SB (6.6L 8cyl 10A)	$76,100	4WD	401 hp	7,144 lbs	$134,870
Denali 4dr Crew Cab 4WD LB (6.6L 8cyl 10A)	$76,300	4WD	401 hp	7,244 lbs	$135,070
Denali 4dr Crew Cab 4WD LB DRW (6.6L 8cyl 10A)	$79,100	4WD	401 hp	7,578 lbs	$137,870
Denali Ultimate 4dr Crew Cab 4WD SB (6.6L 8cyl Turbodiesel 10A)	$97,200	4WD	470 hp	8,274 lbs	$155,970
Denali Ultimate 4dr Crew Cab 4WD LB (6.6L 8cyl Turbodiesel 10A)	$97,400	4WD	470 hp	8,399 lbs	$156,170
Denali Ultimate 4dr Crew Cab 4WD LB DRW (6.6L 8cyl Turbodiesel 10A)	$101,300	4WD	470 hp	8,666 lbs	$160,070

The GMC Sierra 3500HD lineup has contracted from 42 trims in 2024 to 32 trims in 2026. The entry price has increased $2,300 since 2024.

Trims no longer available

last available 2025

SLE 2dr Regular Cab LB (6.6L 8cyl 10A)
SLE 2dr Regular Cab LB DRW (6.6L 8cyl 10A)
SLE 4dr Double Cab LB (6.6L 8cyl 10A)
SLE 4dr Double Cab LB DRW (6.6L 8cyl 10A)
SLE 4dr Crew Cab SB (6.6L 8cyl 10A)
SLE 4dr Crew Cab LB (6.6L 8cyl 10A)
SLE 4dr Crew Cab LB DRW (6.6L 8cyl 10A)
SLT 4dr Crew Cab SB (6.6L 8cyl 10A)
SLT 4dr Crew Cab LB (6.6L 8cyl 10A)
SLT 4dr Crew Cab LB DRW (6.6L 8cyl 10A)

Price changes since 2024

AT4 4dr Crew Cab 4WD SB (6.6L 8cyl 10A) $70,300 (2024) → $72,800 (2026) +$2,500
AT4 4dr Crew Cab 4WD LB (6.6L 8cyl 10A) $70,500 (2024) → $73,000 (2026) +$2,500
Denali Ultimate 4dr Crew Cab 4WD LB DRW (6.6L 8cyl Turbodiesel 10A) $98,800 (2024) → $101,300 (2026) +$2,500
Pro 2dr Regular Cab LB (6.6L 8cyl 10A) $45,600 (2024) → $47,900 (2026) +$2,300
Pro 2dr Regular Cab LB DRW (6.6L 8cyl 10A) $47,000 (2024) → $49,300 (2026) +$2,300
Pro 4dr Double Cab LB (6.6L 8cyl 10A) $47,700 (2024) → $50,000 (2026) +$2,300
Pro 2dr Regular Cab 4WD LB (6.6L 8cyl 10A) $48,400 (2024) → $50,700 (2026) +$2,300
Pro 4dr Double Cab LB DRW (6.6L 8cyl 10A) $49,100 (2024) → $51,400 (2026) +$2,300
Pro 4dr Crew Cab SB (6.6L 8cyl 10A) $49,300 (2024) → $51,600 (2026) +$2,300
Pro 4dr Crew Cab LB (6.6L 8cyl 10A) $49,500 (2024) → $51,800 (2026) +$2,300

View full trim timeline (2024–2026)

Trim	2024	2025	2026
Pro 2dr Regular Cab LB (6.6L 8cyl 10A)	$45,600 18 MPG	$47,500 18 MPG	$47,900 18 MPG
Pro 2dr Regular Cab LB DRW (6.6L 8cyl 10A)	$47,000 18 MPG	$48,900 18 MPG	$49,300 18 MPG
Pro 4dr Double Cab LB (6.6L 8cyl 10A)	$47,700 18 MPG	$49,600 18 MPG	$50,000 18 MPG
Pro 2dr Regular Cab 4WD LB (6.6L 8cyl 10A)	$48,400 18 MPG	$50,300 18 MPG	$50,700 18 MPG
Pro 4dr Double Cab LB DRW (6.6L 8cyl 10A)	$49,100 18 MPG	$51,000 18 MPG	$51,400 18 MPG
Pro 4dr Crew Cab SB (6.6L 8cyl 10A)	$49,300 18 MPG	$51,200 18 MPG	$51,600 18 MPG
Pro 4dr Crew Cab LB (6.6L 8cyl 10A)	$49,500 18 MPG	$51,400 18 MPG	$51,800 18 MPG
Pro 2dr Regular Cab 4WD LB DRW (6.6L 8cyl 10A)	$49,800 18 MPG	$51,700 18 MPG	$52,100 18 MPG
SLE 2dr Regular Cab LB (6.6L 8cyl 10A)	$50,400 18 MPG	$51,600 18 MPG	—
Pro 4dr Double Cab 4WD LB (6.6L 8cyl 10A)	$50,500 18 MPG	$52,400 18 MPG	$52,800 18 MPG
Pro 4dr Crew Cab LB DRW (6.6L 8cyl 10A)	$50,900 18 MPG	$52,800 18 MPG	$53,200 18 MPG
SLE 2dr Regular Cab LB DRW (6.6L 8cyl 10A)	$51,900 18 MPG	$53,100 18 MPG	—
Pro 4dr Double Cab 4WD LB DRW (6.6L 8cyl 10A)	$51,900 18 MPG	$53,800 18 MPG	$54,200 18 MPG
Pro 4dr Crew Cab 4WD SB (6.6L 8cyl 10A)	$52,100 18 MPG	$54,000 18 MPG	$54,400 18 MPG
Pro 4dr Crew Cab 4WD LB (6.6L 8cyl 10A)	$52,300 18 MPG	$54,200 18 MPG	$54,600 18 MPG
SLE 4dr Double Cab LB (6.6L 8cyl 10A)	$52,700 18 MPG	$53,900 18 MPG	—
SLE 2dr Regular Cab 4WD LB (6.6L 8cyl 10A)	$53,200 18 MPG	$54,400 18 MPG	$54,700 18 MPG
Pro 4dr Crew Cab 4WD LB DRW (6.6L 8cyl 10A)	$53,700 18 MPG	$55,600 18 MPG	$56,000 18 MPG
SLE 4dr Double Cab LB DRW (6.6L 8cyl 10A)	$54,100 18 MPG	$55,300 18 MPG	—
SLE 4dr Crew Cab SB (6.6L 8cyl 10A)	$54,300 18 MPG	$55,500 18 MPG	—
SLE 4dr Crew Cab LB (6.6L 8cyl 10A)	$54,500 18 MPG	$55,700 18 MPG	—
SLE 2dr Regular Cab 4WD LB DRW (6.6L 8cyl 10A)	$54,700 18 MPG	$55,900 18 MPG	$56,200 18 MPG
SLE 4dr Double Cab 4WD LB (6.6L 8cyl 10A)	$55,500 18 MPG	$56,700 18 MPG	$57,000 18 MPG
SLE 4dr Crew Cab LB DRW (6.6L 8cyl 10A)	$55,800 18 MPG	$57,000 18 MPG	—
SLE 4dr Double Cab 4WD LB DRW (6.6L 8cyl 10A)	$56,900 18 MPG	$58,100 18 MPG	$58,400 18 MPG
SLE 4dr Crew Cab 4WD SB (6.6L 8cyl 10A)	$57,100 18 MPG	$58,300 18 MPG	$58,600 18 MPG
SLE 4dr Crew Cab 4WD LB (6.6L 8cyl 10A)	$57,300 18 MPG	$58,500 18 MPG	$58,800 18 MPG
SLE 4dr Crew Cab 4WD LB DRW (6.6L 8cyl 10A)	$58,600 18 MPG	$59,800 18 MPG	$60,100 18 MPG
SLT 4dr Crew Cab SB (6.6L 8cyl 10A)	$61,700 18 MPG	$63,100 18 MPG	—
SLT 4dr Crew Cab LB (6.6L 8cyl 10A)	$61,900 18 MPG	$63,300 18 MPG	—
SLT 4dr Crew Cab LB DRW (6.6L 8cyl 10A)	$63,300 18 MPG	$64,700 18 MPG	—
SLT 4dr Crew Cab 4WD SB (6.6L 8cyl 10A)	$64,500 18 MPG	$65,900 18 MPG	$65,900 18 MPG
SLT 4dr Crew Cab 4WD LB (6.6L 8cyl 10A)	$64,700 18 MPG	$66,100 18 MPG	$66,100 18 MPG
SLT 4dr Crew Cab 4WD LB DRW (6.6L 8cyl 10A)	$66,100 18 MPG	$67,500 18 MPG	$67,500 18 MPG
AT4 4dr Crew Cab 4WD SB (6.6L 8cyl 10A)	$70,300 18 MPG	$72,200 18 MPG	$72,800 18 MPG
AT4 4dr Crew Cab 4WD LB (6.6L 8cyl 10A)	$70,500 18 MPG	$72,400 18 MPG	$73,000 18 MPG
Denali 4dr Crew Cab 4WD SB (6.6L 8cyl 10A)	$74,400 18 MPG	$75,000 18 MPG	$76,100 18 MPG
Denali 4dr Crew Cab 4WD LB (6.6L 8cyl 10A)	$74,600 18 MPG	$75,200 18 MPG	$76,300 18 MPG
Denali 4dr Crew Cab 4WD LB DRW (6.6L 8cyl 10A)	$76,800 18 MPG	$78,000 18 MPG	$79,100 18 MPG
Denali Ultimate 4dr Crew Cab 4WD SB (6.6L 8cyl Turbodiesel 10A)	$95,300 18 MPG	$96,700 18 MPG	$97,200 18 MPG
Denali Ultimate 4dr Crew Cab 4WD LB (6.6L 8cyl Turbodiesel 10A)	$95,500 18 MPG	$96,900 18 MPG	$97,400 18 MPG
Denali Ultimate 4dr Crew Cab 4WD LB DRW (6.6L 8cyl Turbodiesel 10A)	$98,800 18 MPG	$100,800 18 MPG	$101,300 18 MPG

Compare Trim Costs

Select two trims and adjust your driving and financing to see how monthly costs compare. Only costs we can compute from EPA data and your inputs are shown. No estimates, no guesses.

Trim A

Trim B

Your driving & financing

Miles per year City driving 55%

Fuel price ($/gal) Down payment ($)

Loan term (months) Interest rate (%)

Electricity price ($/kWh)

Once you have settled on a trim, long-term dependability becomes the deciding factor. The section below shows the third-party reliability rating currently available.

How Reliable Is the 2026 GMC Sierra 3500HD?

RepairPal Applies to all trims Data as of March 2026

RepairPal rates the 2026 GMC Sierra 3500HD at 3.5 out of 5.0 for reliability, which is about average for mid-range Trucks. RepairPal ratings reflect repair frequency and cost data from a network of certified repair shops. Source: RepairPal.

3.5/5.0RepairPal Rating

Reliability data tells you what to expect. Warranty coverage tells you what GMC will fix for free if something goes wrong within the covered period.

What Warranty Does the 2026 GMC Sierra 3500HD Come With?

Manufacturer Per trim Data as of March 2026

Here is what GMC covers at no cost for the 2026 Sierra 3500HD. Basic coverage handles most defects. Powertrain coverage protects the engine and transmission for a longer period. Both start from the original purchase date.

Basic Warranty	3yr/36k
Powertrain Warranty	5yr/60k
Corrosion Warranty	6yr/100k
Roadside Assistance	5yr/60k
Complimentary Maintenance	1yr/1visit

What Are the 2026 GMC Sierra 3500HD Specs?

Manufacturer Per trim Data as of March 2026

Dimensions, weight, and powertrain details for the 2026 GMC Sierra 3500HD. These figures are published by GMC and apply to the base configuration unless noted. Specific trims may differ.

EPA vehicle class: Full-size pickup truck

Engine	6.6L V8
Horsepower	401 - 470 hp
Power-to-Weight	105.8 - 126.7 hp per ton
Price per HP	$119 - $216
Torque	464 - 975 lb-ft
Transmission	10-speed shiftable automatic
Drive Type	Rear-Wheel Drive, Four-Wheel Drive
Fuel Type	regular unleaded, diesel fuel
Fuel Tank	36.0 gal
Est. Range per Tank	648 miles per tank (EPA combined)

Length	236.3 - 266.8 in
Width	81.9 - 96.6 in
Height	80.0 - 81.2 in
Wheelbase	142.0 - 172.0 in
Curb Weight	6,329 - 8,666 lbs

What Changed for the 2026 GMC Sierra 3500HD?

Manufacturer Per trim Data as of March 2026

Number of available trims changed
Pricing changed across one or more trims

That is the complete data picture for the 2026 GMC Sierra 3500HD. For a truck, the numbers that matter most, towing, payload, fuel cost under load, and long-term reliability, are covered above from EPA, NHTSA, IIHS, AAA, and manufacturer data. Data is refreshed periodically.

Data coverage & source links

The following data categories are not yet available for the 2026 GMC Sierra 3500HD: NHTSA has not yet published crash test results for this vehicle. IIHS has not yet tested this vehicle for crashworthiness. Learn how we collect, verify, and present vehicle data.

Verify this data

2026 GMC Sierra 3500HD FAQ

Answers generated from published EPA, NHTSA, IIHS, AAA, and RepairPal data. Not personal advice.

Which 2026 GMC Sierra 3500HD trim has the lowest ownership cost?

Among 32 available trims, the Pro 2dr Regular Cab LB (6.6L 8cyl 10A) has the lowest estimated five-year ownership cost at $106,670, starting at $47,900 MSRP. The most expensive trim to own is about $160,070. See the full trim comparison table above for a side-by-side breakdown.

What vehicles compete with the 2026 GMC Sierra 3500HD?

In the pickup truck (regular cab) segment, the closest alternatives to the 2026 GMC Sierra 3500HD are 2026 Toyota Tundra (starting at $41,260, 5-star NHTSA, 20-22 MPG); and 2026 Honda Ridgeline (starting at $40,795, 5-star NHTSA, 21 MPG); and 2026 Ford F-150 (starting at $37,290, 5-star NHTSA, 19-23 MPG). Each page on this site covers the same data sources so you can compare directly. Browse all 2026 Pickup Truck (Regular Cab)s.

What changed on the 2026 GMC Sierra 3500HD from last year?

Compared to the previous model year, 10 trims were dropped and the entry price increased by $2,300 for the GMC Sierra 3500HD lineup. See the trim evolution timeline above for full year-by-year pricing and availability details.

How much does a 2026 GMC Sierra 3500HD cost per month to own?

Excluding your car payment, estimated monthly costs for the 2026 GMC Sierra 3500HD include about $1,232 for insurance, maintenance, depreciation, and fees, plus roughly $204 for fuel. That puts non-payment running costs around $1,436 per month. These are estimates based on AAA class averages and EPA fuel data. Actual costs depend on your driving, location, and coverage.

Where is GMC based?

GMC's headquarters are in United States. Assembly location varies by model and sometimes by trim. The "Brand Origin" label on this site refers to corporate headquarters, not the factory where your specific vehicle was built. See our United States-brand cars 2026 list.

What other GMC models are available for 2026?

GMC offers multiple models for 2026. Our GMC models page lists every available GMC vehicle with safety ratings, fuel costs, and ownership data.

How much does the 2026 GMC Sierra 3500HD cost to fuel for heavy use?

At its most efficient trim, the 2026 GMC Sierra 3500HD has an estimated annual fuel cost of $2,450 based on EPA testing at 15,000 miles per year. Trucks driven for work or towing typically exceed that mileage, so real-world fuel costs may be higher. See the fuel economy section above for a full trim breakdown.

Compare to Similar Vehicles

Other Model Years

Related Comparisons

Data on this page is compiled from government agencies and independent research organizations. It is provided for informational purposes only and does not constitute financial, purchasing, or safety advice. Verify all data with the original source before making decisions.