The 2009 Mazda3 came with a 2.3L DOHC 16-valve inline-4 engine (MZR L3-VE) producing 156 horsepower at 6,000 RPM and 150 lb-ft of torque at 4,000 RPM. This naturally aspirated engine features aluminum construction with iron cylinder liners, electronic throttle control, and variable intake timing (S-VT). It’s paired with either a 5-speed manual or 5-speed automatic transmission. The engine uses a timing chain rather than a belt, eliminating the need for regular timing component replacement. Fuel economy is rated at approximately 25 city/33 highway MPG with the manual transmission.

The 2009 Mazda3 shares most parts with the 2004-2009 first-generation models, as it was the final year of this generation. Engine components from the 2.3L MZR are largely interchangeable across all first-generation years. Body panels, interior trim, and suspension components are compatible within the 2004-2009 range, though there were minor styling updates in 2007. The 2009 model received some unique interior trim pieces and wheel designs. Transmission parts interchange within the generation, and many electrical components are shared. However, always verify part numbers as running changes occurred throughout production.

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 2.3L MZR engine in the 2009 Mazda3 is generally reliable with proper maintenance, typically lasting 200,000+ miles. Key maintenance includes regular oil changes every 5,000 miles using 5W-30 synthetic oil, as this engine can be sensitive to oil quality. The timing chain is robust but tensioner replacement around 150,000 miles prevents costly failures. Carbon buildup on intake valves requires periodic cleaning in higher-mileage engines. The engine responds well to premium fuel but runs fine on regular. Common wear items include ignition coils around 100,000 miles and the PCV valve. Overall, it’s a solid, economical engine when maintained properly.