The 2010 GMC Yukon comes standard with the 5.3L Vortec V8 engine (RPO code LMG), producing 320 horsepower and 335 lb-ft of torque. This aluminum-block engine features Active Fuel Management (AFM) cylinder deactivation technology and variable valve timing for improved fuel economy. The engine is paired with a 6L80E six-speed automatic transmission and is available in both 2WD and 4WD configurations. The 5.3L provides adequate power for towing up to 8,500 pounds when properly equipped, making it suitable for most family hauling and recreational towing needs while delivering reasonable fuel economy for a full-size SUV.

The 2010 GMC Yukon shares most parts with the 2007-2014 GMT900 platform generation, including Chevrolet Tahoe and Suburban, GMC Yukon XL, and Cadillac Escalade models from the same years. Engine components from the 5.3L LMG are compatible across 2010-2014 models, while some 2007-2009 5.3L parts may differ due to AFM system updates. Body panels, interior components, and suspension parts generally interchange within 2007-2014 years, though minor trim differences exist. The transmission, differential, and brake components are widely compatible across the GMT900 platform. Always verify part numbers and RPO codes for exact fitment, especially for electronic components and emissions-related parts.

Parts availability changes daily. Call us at (603) 392-7313 or visit our online shop to check current inventory from this specific vehicle. If we have sold a part you need, our Parts Broker service can source it from our network of partner yards nationwide.

Yes! We ship parts from this vehicle and our entire inventory nationwide. Most orders ship within 1-2 business days via FedEx or freight carriers for larger components like engines and transmissions. Call (603) 392-7313 for a shipping quote on any part.

The 5.3L LMG engine in the 2010 Yukon is generally reliable but has notable weaknesses, particularly the Active Fuel Management system which commonly causes lifter failures after 80,000 miles. When properly maintained with regular oil changes using quality oil, the engine can exceed 200,000 miles. However, the AFM system’s complexity makes it more failure-prone than non-AFM variants. Many owners disable AFM to improve longevity. The aluminum block construction helps with weight and heat dissipation but requires proper coolant maintenance to prevent corrosion. Overall, it’s a capable engine that requires proactive maintenance and AFM system attention to achieve maximum reliability and longevity.