Generation Hub
GMC Yukon 2021-Present
Overview
The GMC Yukon, from 2021 onwards, is a testament to modern full-size SUV excellence. Built on an updated platform, it boasts a spacious, luxurious interior with premium materials and ample room for passengers and cargo. It caters to diverse needs and is available in standard and extended Yukon XL versions. The exterior design is bold and imposing, characterized by a prominent front grille and sleek LED lighting elements, giving it a distinctive road presence.
Regarding technology and safety features, the Yukon has a sophisticated infotainment system, advanced driver assistance technologies, and seamless connectivity options. The ride quality is refined, thanks to its well-tuned suspension, and it offers impressive off-road capabilities in its four-wheel-drive variants. This generation of the Yukon continues to offer powerful V8 engine options for those requiring substantial towing capacity. Overall, the 2021+ GMC Yukon is a top-tier choice for those seeking a premium full-size SUV with a blend of style, technology, and versatility.
Specifications
GMC Yukon specification, engine oil capacity, spark plug gap, safety rating, fuel consumption, transmission, and light bulb sizes.
Engine 5.3L 8-Cylinder
- Recommended Oil Viscosity: 0W-20
- Oil certification: API
- Oil capacity: 8.0 quarts
Spark Plug Gap
- 5.3L 8-Cylinder: 0.040”
Engine 6.2L 8-Cylinder
- Recommended Oil Viscosity: 0W-20
- Oil certification: API
- Oil capacity: 8.0 quarts
Spark Plug Gap
- 5.3L 8-Cylinder: 0.040”
Engine 3.0L 6-Cylinder
- Recommended Oil Viscosity: 0W-20
- Oil certification: API
- Drain plug torque: 18 ft-lbs
- Oil capacity: 7.0 quarts
Cooling System
- Capacity:
- 5.3L V8 Engine:15.6 qt (14.8 L)
- 6.2L V8 Engine: 15.1 qt (14.3 L)
Fuel Tank
- Capacity
- Short Wheelbase: 24.0 gal (90.8 L)
- Long Wheelbase:28.0 gal (106.0 L)
Transfer Case Fluid
- Capacity: 1.6 qt:(1.5 L)
Automatic Transmission
- Type: DEXRON ULV Automatic Transmission Fluid
Chassis Lubrication
- Type: Chassis Lubricant (GM Part No. 12377985, in Canada 88901242) or lubricant meeting requirements of NLGI #2, Category LB or GC-LB
Coolant
- Type: 50/50 mixture of clean, drinkable water and use only DEX-COOL Coolant.
Hydraulic Brake System
- Type: DOT 4 Hydraulic Brake Fluid
Key Lock Cylinders, Hood Hinges, Body Door Hinge Pins, Power Assist Steps, Liftgate Hinge, and Fuel Door Hinge
- Type: Multi-Purpose Lubricant, Superlube
Weatherstrip Conditioning
- Type: Weatherstrip Lubricant
Windshield Washer
- Type: Automotive windshield washer fluid that meets regional freeze protection requirements.
Powertrain
Engine
- 5.3 L (325 cu in) L84 EcoTec3 V8
- 6.2 L (378 cu in) L87 EcoTec3 V8 (Yukon Denali; Tahoe High Country)
- 3.0 L Duramax I6 engine turbodiesel
Transmission
- 10-speed Hydra-Matic 10L80 automatic
Fuel Consumption

Warning Lights & Bulb Sizes
Front Lights
- Daytime Running Light Bulb: LED
- Front Fog Light Bulb: 12278
- Front Sidemarker Light Bulb: LED
- Front Turn Signal Light Bulb: LED
- High Beam Headlight Bulb: 9005LL
- Low Beam Headlight Bulb:
- H11LL
- HID-D3S
Rear Lights
- Back Up Light Bulb: 921
- Brake Light Bulb: LED
- Center High Mount Stop Light Bulb: LED
- License Plate Light Bulb: 2825L
- Parking Light Bulb: LED
- Rear Sidemarker Light Bulb: LED
- Rear Turn Signal Light Bulb: LED
- Tail Light Bulb: LED
Interior Lights
- Dome Light Bulb: LED
- Luggage Compartment Light Bulb: LED
- Map Light Bulb: LED
- Vanity Mirror Light Bulb: 6612F
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