The 2012 Mazda 6 comes equipped with a 2.5-liter naturally aspirated inline-4 engine, designated as the MZR 2.5L. This direct-injection engine produces 170 horsepower at 6,000 RPM and 167 lb-ft of torque at 4,000 RPM. It features aluminum construction with a cast iron cylinder liner, dual overhead cams, and variable valve timing on both intake and exhaust camshafts. The engine is paired with either a 6-speed manual or 6-speed automatic transmission and delivers EPA-estimated fuel economy of 22 city/31 highway MPG with the automatic transmission.

The 2012 Mazda 6 shares most parts with the 2009-2013 model years, as they represent the same generation with minimal changes. The 2.5L MZR engine components are largely interchangeable across these years, including the cylinder head, block, intake manifold, and most sensors. Body panels, interior components, and suspension parts also interchange well within this generation. However, there were minor updates in 2012-2013 for some electrical components and trim pieces. The previous generation (2003-2008) and newer generation (2014+) have different platforms and limited parts compatibility, though some universal components like brake pads, filters, and fluids may still work.

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 2012 Mazda 6 is generally reliable but has some known weak points. With proper maintenance including regular oil changes every 5,000 miles and timing chain inspection around 80,000 miles, these engines can reach 200,000+ miles. The main concerns are timing chain stretch and carbon buildup on intake valves due to direct injection. Using quality synthetic oil and occasional Italian tune-ups (highway driving at higher RPMs) can help prevent carbon accumulation. The engine responds well to preventive maintenance but can be expensive to repair if timing chain issues are ignored.