The 2010 Mazda 6 comes with a 2.5L inline-4 MZR engine producing 170 horsepower and 167 lb-ft of torque. This naturally aspirated, direct-injection engine features dual overhead cams, variable valve timing on both intake and exhaust, and an aluminum block construction. The engine is paired with either a 5-speed manual or 5-speed automatic transmission. Known for decent fuel economy achieving around 22 city/30 highway mpg, this powerplant provides adequate performance for the midsize sedan segment while maintaining Mazda’s focus on driving dynamics and responsiveness.

The 2010 Mazda 6 shares most parts with the 2009-2013 model years, as they represent the second generation GH platform. Engine components, transmission parts, suspension pieces, and most body panels interchange within this range. Some electrical components and interior trim may have minor variations between years. The 2.5L MZR engine was used consistently throughout this generation with minimal changes. However, always verify part numbers when sourcing components, as mid-cycle refreshes in 2012-2013 introduced some updated parts that may not be backward compatible with earlier years.

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 2.5L MZR engine in the 2010 Mazda 6 is moderately reliable but has some known weaknesses. The timing chain stretch issue is the most serious concern, requiring attention around 100,000 miles. Regular oil changes every 5,000 miles with full synthetic oil help prevent timing chain and VVT problems. Carbon cleaning every 40,000 miles maintains performance. When properly maintained, these engines can reach 200,000+ miles, but neglected maintenance leads to expensive repairs. The engine responds well to preventive care and quality oil, making maintenance history crucial when buying used.