The 2012 Buick Regal comes standard with a 2.4L naturally aspirated 4-cylinder Ecotec engine producing 182 horsepower and 172 lb-ft of torque. This direct-injection engine features variable valve timing and is paired with a 6-speed automatic transmission. The engine uses premium fuel for optimal performance and fuel economy. It’s designed for a balance of efficiency and performance, delivering an EPA-estimated 23 mpg city and 36 mpg highway. The 2.4L Ecotec is part of GM’s global engine family and shares components with other GM vehicles, making parts relatively accessible and affordable.

The 2012 Buick Regal shares most parts with the 2011-2017 model years of the same generation. Engine components from the 2.4L Ecotec are compatible across 2010-2017 Buick Regals, and many parts interchange with other GM vehicles using the same engine, including certain Chevrolet Equinox, GMC Terrain, and Buick LaCrosse models. Body panels and interior components are specific to 2011-2017 Regals, with minor trim differences between years. Suspension components, brakes, and electrical parts generally interchange within the 2011-2017 range. Always verify part numbers and specifications, as mid-cycle refreshes 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 2.4L Ecotec engine in the 2012 Buick Regal is moderately reliable when properly maintained, but has some known weak points. The timing chain system requires attention around 80,000-100,000 miles, and regular oil changes with quality synthetic oil are crucial. Carbon buildup is inevitable with direct injection, so periodic cleaning is necessary. The engine responds well to preventive maintenance including regular PCV system service and cooling system flushes. With proper care, these engines can reach 150,000+ miles, but neglect can lead to expensive repairs. Using premium fuel as recommended and addressing issues early significantly improves longevity.