The 2008 Mercury Mariner comes standard with a 3.0L Duratec V6 engine producing 240 horsepower and 223 lb-ft of torque. This naturally aspirated, dual overhead cam engine features aluminum construction with iron cylinder liners for durability. The engine utilizes variable cam timing on the intake side to optimize performance and fuel economy across the RPM range. It’s paired with a 6-speed automatic transmission and available in both front-wheel drive and intelligent all-wheel drive configurations. The 3.0L V6 provides adequate power for daily driving and light towing up to 3,500 pounds when properly equipped.

The 2008 Mercury Mariner shares most parts with the 2005-2011 Mercury Mariner and Ford Escape models, as they’re built on the same CD2 platform. Engine components from the 3.0L Duratec V6 are interchangeable across all years within this generation. Body panels, interior trim, and suspension components are generally compatible from 2008-2011, with minor variations in trim levels. The transmission, brake components, and electrical systems also interchange well within the 2008-2011 model years. Some early 2005-2007 parts may fit but could have different part numbers due to running production changes and updates.

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 3.0L Duratec V6 in the 2008 Mercury Mariner is generally reliable when properly maintained, but has some known weak points. The timing chain tensioners are the biggest concern and should be inspected regularly after 80,000 miles. Regular oil changes every 5,000 miles with full synthetic oil help prevent timing chain stretch and tensioner wear. The water pump typically needs replacement around 100,000 miles as preventive maintenance. Overall, with proper maintenance including regular coolant flushes and transmission services, this engine can provide 200,000+ miles of service. Watch for timing chain rattle on startup and address it immediately to prevent catastrophic failure.