2025 GMC Sierra 3500HD vs 2025 Jeep Gladiator

$47,500 · Truck

$38,100 · Truck

Comparison Overview

The most significant numerical divergence between the 2025 GMC Sierra 3500HD (Car 1) and the 2025 Jeep Gladiator (Car 2) is in their powertrain output; the Sierra boasts 401 hp and 464 lb-ft of torque, whereas the Gladiator delivers 285 hp and 260 lb-ft. This 116 hp deficit suggests the Sierra is engineered for substantially heavier duty applications. Furthermore, pricing presents a major variance, with the Sierra starting at $47,500 compared to the Gladiator's $38,100 MSRP, a $9,400 disparity. In terms of size, the Sierra measures 236.3 inches long, providing more substantial body presence than the Gladiator's 218.0 inches. While the Gladiator offers four-wheel drive capability standard, the Sierra focuses on brute force, though MPG figures are not provided for the heavy-duty Sierra, the Gladiator achieves a combined 19 MPG. The transmissions also differ, with the Sierra utilizing a 10-speed automatic versus the Gladiator's 8-speed.

Size Comparison

Performance

Fuel Efficiency

Full Specifications

Our Verdicts

🚗 Best for Commuters

2025 Jeep Gladiator

The Jeep Gladiator's smaller dimensions (73.8 inches width vs. 81.9 inches for the Sierra) and presumed better fuel economy make it marginally easier for daily navigation.

👨‍👩‍👧‍👦 Best for Families

2025 GMC Sierra 3500HD

Though neither is ideal, the Sierra 3500HD offers a much larger platform, suggesting superior interior volume and payload capacity for family needs.

🏎️ Best for Enthusiasts

2025 GMC Sierra 3500HD

The Sierra 3500HD’s superior power figures (401 hp and 464 lb-ft) clearly indicate a stronger performance orientation for towing or heavy work.

💰 Best Value

2025 Jeep Gladiator

The Jeep Gladiator starts at $38,100, offering a considerable $9,400 lower entry price point than the Sierra 3500HD.

Choose the GMC Sierra 3500HD if...

Maximum power is required, evidenced by its 401 hp and 464 lb-ft of torque.
The primary use case involves heavy-duty hauling or towing, consistent with its 3500HD classification.
A larger physical footprint is necessary, indicated by its 236.3-inch length and 80.9-inch height.

Choose the Jeep Gladiator if...

Keeping the initial purchase price under $40,000 is crucial, as its MSRP is $38,100.
Driving economy matters, with the Gladiator achieving 19 combined MPG.
Standard four-wheel drive capability is preferred over the Sierra's rear-wheel drive base configuration.

Key Dimensions

Dimension	GMC Sierra 3500HD	Jeep Gladiator
Length	236.3"	218.0"
Width	81.9"	73.8"
Height	80.9"	75.0"
Wheelbase	142.0"	137.3"

Features Comparison

Safety

Feature	GMC	Jeep
Lane Departure Warning	✓	—
Pre-Collision Safety System	✓	—
Post-Collision Safety System	✓	✓
Dual Front Side-Mounted Airbags	✓	✓
Front Head Airbags	✓	✓
Passenger Airbag Occupant Sensing Deactivation	✓	✓
Electronic Stability Control	✓	✓
Traction Control System	✓	✓
LATCH System	✓	✓
Anti-lock Brakes (ABS)	4-Wheel	4-Wheel
Front Ventilated Disc Brakes	✓	✓
Rear Ventilated Disc Brakes	✓	✓
Tire Pressure Monitoring System	✓	✓
Automatic Headlights	✓	—
Headlight Delay-Off	✓	✓
LED Headlights	✓	—
Daytime Running Lights	✓	—
Integrated Turn Signal Mirrors	✓	—
Front Headrests	2	2
Front Height Adjustable Headrests	✓	✓
Front Center 3-Point Seatbelt	✓	—
Engine Immobilizer	✓	✓
Rear Head Airbags	—	✓
Rear Door Child Safety Locks	—	✓
Brake Assist	—	✓
Front Fog Lights	—	✓
Rear Headrests	—	3
Rear Folding Headrests	—	✓
Rear Center 3-Point Seatbelt	—	✓

Engine

Feature	GMC	Jeep
Base Engine Displacement	6.6 L	3.6 L
Number of Cylinders	V8	V6
Base Engine Type	gas	gas
Horsepower	401 hp @ 5200 rpm	285 hp @ 6400 rpm
Torque	464 lb-ft @ 4000 rpm	260 lb-ft @ 4400 rpm
Number of Valves	16	24
Camshaft Type	Overhead valves (OHV)	Double overhead cam (DOHC)
Variable Valve Timing	Variable	Variable
Fuel Injection Type	✓	—

Drive Train

Feature	GMC	Jeep
Transmission Type	10-speed shiftable automatic	8-speed shiftable automatic
Drivetrain Type	rear wheel drive	four wheel drive
Rear Differential Type	Locking	—
4WD System Type	—	Part Time
Transfer Case Gearing	—	Manual Hi-Lo
Locking Hubs	—	Automatic

Fuel

Feature	GMC	Jeep
Fuel Type	regular unleaded	regular unleaded
EPA Driving Range (City/Highway)	0/0 mi.	374.0/484.0 mi.
Fuel Tank Capacity	36.0 gal.	22.0 gal.
EPA Fuel Economy (City/Highway)	—	17/22 MPG
EPA Fuel Economy (Combined)	—	19 MPG

Comfort & Convenience

Feature	GMC	Jeep
Push Button Start	✓	✓
Tilt Steering Wheel	✓	—
Power Steering	✓	✓
Rear View Camera	✓	✓
Cruise Control	✓	—
Front Cupholders	✓	✓
Front Door Pockets	✓	✓
Single Zone Climate Control	✓	✓
Turn Signal Indicators in Mirrors	✓	—
Tilt and Telescopic Steering Wheel	—	✓
Audio Controls on Steering Wheel	—	✓
Cruise Control on Steering Wheel	—	✓
Adaptive Cruise Control	—	✓
Rear Cupholders	—	✓
Rear Door Pockets	—	✓
Front Seatback Storage	—	✓
Leatherette Steering Wheel	—	✓
Interior Air Filtration	—	✓
Dual Vanity Mirrors	—	✓

In Car Entertainment

Feature	GMC	Jeep
Infotainment Display	7.0 in	12.3 in
AM/FM Stereo	✓	✓
Speaker System	2	8
Android Auto (Wired)	✓	✓
Apple CarPlay (Wired)	✓	✓
USB Port	✓	✓
USB Port with External Media Control	✓	✓
Speed Sensitive Volume Control	✓	—
Auxiliary Audio Input	—	✓

Power Feature

Feature	GMC	Jeep
One-Touch Power Windows	2	2
Power Door Locks	✓	—
Heated Mirrors	✓	✓
Keyless Entry	—	✓

Frontseats

Feature	GMC	Jeep
Front Head Room	43.1 in.	42.8 in.
Front Leg Room	44.5 in.	41.2 in.
Front Shoulder Room	66.1 in.	55.7 in.
Front Hip Room	60.9 in.	53.9 in.
Seat Material: Vinyl	✓	—
Front Seat Type: 40-20-40 Split Bench	✓	—
Driver Seat Manual Adjustments	4-way	6-way
Passenger Seat Manual Adjustments	4-way	4-way
Seat Material: Cloth	—	✓
Front Seat Type: Bucket	—	✓
Driver Seat Height Adjustment	—	✓
Driver Seat Lumbar Support	—	Manual

Rearseats

Feature	GMC	Jeep
Rear Head Room	—	42.8 in.
Rear Leg Room	—	38.3 in.
Rear Shoulder Room	—	55.7 in.
Rear Hip Room	—	55.9 in.
Split-Folding Rear Seatback	—	✓

Tires and Wheels

Feature	GMC	Jeep
Wheel Finish	Painted Steel	Painted Steel
Wheel Diameter	18 in	—
Tire Type	All Terrain	All Season
Tire Size	LT275/70R18	245/75R17
Spare Tire Type	Full Size Matching	Full Size Non-Matching
Spare Tire Location	Underbody Mounted	Underbody Mounted
Wheel Size	—	17 x 7.5 in

Suspension

Feature	GMC	Jeep
Front Suspension Type	Independent	—
Stabilizer Bar	✓	—
Front Stabilizer Bar	—	✓
Rear Stabilizer Bar	—	✓

Warranty

Feature	GMC	Jeep
Basic Warranty	3 yr./ 36000 mi.	3 yr./ 36000 mi.
Drivetrain Warranty	5 yr./ 100000 mi.	5 yr./ 60000 mi.
Corrosion/Rust Warranty	6 yr./ 100000 mi.	5 yr./ unlimited mi.
Roadside Assistance	5 yr./ 60000 mi.	5 yr./ 60000 mi.
Complimentary Scheduled Maintenance	1 yr./ unlimited mi.	—

Frequently Asked Questions

Common questions about comparing the 2025 GMC Sierra 3500HD and 2025 Jeep Gladiator.

How much more powerful is the 2025 Sierra 3500HD compared to the Gladiator?

The Sierra 3500HD offers significantly more power, generating 401 hp and 464 lb-ft of torque. This is a substantial advantage over the Jeep Gladiator, which is rated at 285 hp and 260 lb-ft of torque.

What is the primary difference in drivetrain between these two trucks?

The base 2025 GMC Sierra 3500HD utilizes a Rear Wheel Drive configuration paired with a 10-speed automatic transmission. Conversely, the 2025 Jeep Gladiator comes standard with Four Wheel Drive and an 8-speed automatic transmission.

How does the starting MSRP compare for these models?

The Jeep Gladiator presents a significantly lower entry cost at $38,100. The 2025 GMC Sierra 3500HD starts substantially higher, listed at $47,500, creating a nearly $10,000 price gap.

Are there notable differences in physical size between the two vehicles?

Yes, the Sierra 3500HD is the physically larger vehicle, measuring 236.3 inches in length and 81.9 inches in width. The Gladiator is more compact at 218.0 inches long and 73.8 inches wide.

Which vehicle offers better fuel consumption metrics?

Based on provided data, only the Jeep Gladiator lists fuel economy figures, achieving 19 combined MPG (17 city/22 highway). Fuel economy data for the heavy-duty Sierra 3500HD is not provided, but it is expected to be significantly lower given its class.