The GMC Yukon V Denali 6.2 V8 Automatic, produced from 2020 to 2024, represents the pinnacle of luxury and capability within the fifth generation (2021-present) Yukon lineup. Positioned as the flagship trim, the Denali 6.2 V8 offered a substantial step up in performance and features compared to the standard Yukon and even the AT4 model. It catered to buyers seeking a full-size SUV with robust towing capacity, a refined interior, and a powerful engine. This variant played a key role in GMC’s strategy to elevate the Yukon brand as a premium alternative to competitors like the Chevrolet Tahoe/Suburban, Ford Expedition, and Lincoln Navigator.
Technical Specifications
| Brand | GMC |
| Model | Yukon |
| Generation | Yukon V |
| Type (Engine) | Denali 6.2 V8 (426 Hp) Automatic |
| Start of production | July, 2020 |
| End of production | 2024 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | SUV |
| Seats | 7 |
| Doors | 5 |
| Fuel consumption (urban) | 15.7 l/100 km (15 US mpg, 18 UK mpg, 6.4 km/l) |
| Fuel consumption (extra urban) | 11.8 l/100 km (19.9 US mpg, 23.9 UK mpg, 8.5 km/l) |
| Fuel consumption (combined) | 13.8 l/100 km (17 US mpg, 20.5 UK mpg, 7.2 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Power | 426 Hp @ 5600 rpm |
| Power per litre | 69.1 Hp/l |
| Torque | 623 Nm @ 4100 rpm (459.5 lb.-ft. @ 4100 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | L86 |
| Engine displacement | 6162 cm3 (376.03 cu. in.) |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Cylinder Bore | 103.25 mm (4.06 in.) |
| Piston Stroke | 92 mm (3.62 in.) |
| Number of valves per cylinder | 2 |
| Fuel injection system | Direct injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | OHV, VVT |
| Engine oil capacity | 7.6 l (8.03 US qt, 6.69 UK qt) |
| Coolant | 14.3 l (15.11 US qt, 12.58 UK qt) |
| Trunk (boot) space – minimum | 722 l (25.5 cu. ft.) |
| Trunk (boot) space – maximum | 3479 l (122.86 cu. ft.) |
| Permitted trailer load with brakes (12%) | 3719 kg (8198.99 lbs.) |
| Length | 5335 mm (210.04 in.) |
| Width | 2058 mm (81.02 in.) |
| Height | 1943 mm (76.5 in.) |
| Wheelbase | 3071 mm (120.91 in.) |
| Front track | 1737 mm (68.39 in.) |
| Rear (Back) track | 1730 mm (68.11 in.) |
| Minimum turning circle | 11.6-12.1 m (38.06 – 39.7 ft.) |
| Drivetrain Architecture | Rear wheel drive, Internal Combustion engine (ICE) |
| Number of gears and type of gearbox | 10 gears, automatic transmission Hydra-Matic |
| Front suspension | Independent coil spring |
| Rear suspension | Independent multi-link suspension |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 275/65 R20; 275/50 R22 |
| Wheel rims size | 20; 22 |
INTRODUCTION
The 2020-2024 GMC Yukon V Denali 6.2 V8 Automatic marked a significant evolution for GMC’s full-size SUV. Built on the GM T1XX platform, shared with the Chevrolet Tahoe and Suburban, the Yukon Denali aimed for a more luxurious and refined experience. The 6.2-liter V8 engine, paired exclusively with a 10-speed automatic transmission, provided substantial power and towing capability, making it a popular choice for families and those needing a versatile vehicle for work and recreation. The Denali trim distinguished itself with unique exterior styling cues, a premium interior, and a host of advanced technology features.
Powertrain & Engine Architecture
At the heart of the Yukon V Denali is the GM L86 6.2-liter naturally aspirated V8 engine. This engine utilizes direct injection, a robust cast iron block, and aluminum cylinder heads. The L86 produces 426 horsepower at 5600 rpm and 460 lb-ft of torque at 4100 rpm. The engine features Active Fuel Management (AFM), also known as cylinder deactivation, which shuts down four cylinders under light load conditions to improve fuel economy. The 10-speed Hydra-Matic automatic transmission (10L80) is a key component, offering a wide gear ratio spread for optimized acceleration and fuel efficiency. This transmission is electronically controlled and features a sophisticated shift strategy designed to provide smooth and responsive gear changes.
Driving Characteristics
The Yukon V Denali 6.2L Automatic delivers a confident and capable driving experience. The substantial torque output of the 6.2L V8 provides strong acceleration, especially when towing. While not a sports car, the Yukon Denali feels surprisingly agile for its size, thanks in part to the well-tuned suspension and responsive steering. The 10-speed transmission allows the engine to stay in its optimal power band, contributing to effortless highway cruising and confident passing maneuvers. Compared to the 5.3L V8 Yukon models, the 6.2L Denali offers a noticeable performance advantage, particularly when fully loaded or towing. The automatic transmission, while generally smooth, can occasionally exhibit slight hesitation during downshifts.
Equipment & Trim Levels
The Denali trim level is exceptionally well-equipped. Standard features include a premium leather interior, heated and ventilated front seats, a power-adjustable steering column, a premium Bose audio system, a large touchscreen infotainment system with navigation, and a suite of advanced safety features such as automatic emergency braking, lane departure warning, and blind-spot monitoring. Optional extras included a rear-seat entertainment system, a panoramic sunroof, adaptive cruise control, and a head-up display. The Denali’s interior distinguishes itself with unique trim accents, including brushed aluminum and woodgrain finishes, creating a luxurious and sophisticated atmosphere.
Chassis & Braking
The Yukon V Denali utilizes an independent front suspension with coil springs and an independent multi-link rear suspension. This setup provides a comfortable ride quality while maintaining good handling characteristics. The Denali features ventilated disc brakes on all four wheels, providing ample stopping power. The electronic stability control system and anti-lock braking system (ABS) work in conjunction to enhance safety and control. Air Ride Adaptive Suspension was available as an option, allowing drivers to adjust the ride height and stiffness for improved comfort or off-road capability. The rear axle ratio is optimized for both towing and fuel efficiency.
Market Reception & Comparison
The GMC Yukon V Denali 6.2 V8 Automatic was generally well-received by automotive critics and consumers alike. It was praised for its powerful engine, luxurious interior, and spacious cabin. Fuel economy, however, was a common criticism, as expected for a vehicle of this size and capability. Compared to the standard Yukon and the 5.3L V8 models, the Denali 6.2L commanded a significant price premium, but many buyers felt the added features and performance justified the cost. Against competitors like the Ford Expedition Platinum and Lincoln Navigator, the Yukon Denali offered a compelling combination of luxury, capability, and value.
Legacy
The L86 6.2L V8 engine and 10-speed automatic transmission have proven to be relatively reliable powertrains. While some owners have reported minor issues with the AFM system, overall, the powertrain has a good reputation for durability. On the used car market, the 2020-2024 Yukon V Denali 6.2L Automatic holds its value well, reflecting its desirable features and strong performance. These models continue to be sought after by buyers looking for a luxurious and capable full-size SUV. Regular maintenance, including oil changes and transmission fluid services, is crucial to ensuring the long-term reliability of this powertrain.




