The 2010 Mazda 6 comes equipped with a 2.5-liter naturally aspirated 4-cylinder MZR engine, producing 170 horsepower at 6,000 RPM and 167 lb-ft of torque at 4,000 RPM. This aluminum block engine features dual overhead cams, 16 valves, and variable valve timing on both intake and exhaust sides. The engine uses a timing chain rather than a belt and requires premium unleaded fuel for optimal performance. It’s paired with either a 5-speed manual or 5-speed automatic transmission and delivers EPA ratings of approximately 21 city/30 highway MPG.

The 2010 Mazda 6 shares most parts with the 2009-2013 model years, as they represent the second generation GH platform. Engine components from the 2.5L MZR are largely interchangeable across these years. Body panels, interior trim, and electrical components are generally compatible within this generation. However, there were minor updates in 2012 that affected some trim pieces and electronic modules. The transmission, suspension components, brakes, and most mechanical parts interchange well throughout the 2009-2013 production run. Always verify part numbers when sourcing components, as running changes can affect compatibility.

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 generally reliable but has some known weak points. With proper maintenance, these engines can reach 200,000+ miles. The timing chain system is the biggest concern, requiring attention around 100,000 miles to prevent costly failures. Regular oil changes every 5,000 miles with full synthetic oil help prevent timing chain stretch. Carbon buildup is inevitable with direct injection, so periodic cleaning is recommended. The engine responds well to premium fuel and benefits from Italian tune-ups to prevent carbon accumulation. Overall, it’s a solid powerplant when maintained properly.