The 2004 Cadillac DeVille comes equipped with the 4.6L Northstar V8 engine, producing 275 horsepower and 300 lb-ft of torque. This all-aluminum, DOHC engine features 32 valves and advanced variable valve timing technology. The Northstar was designed as Cadillac’s flagship powerplant, offering smooth power delivery and refined operation. It’s paired with a 4T80-E four-speed automatic transmission and front-wheel drive system. The engine includes features like limp-home capability that allows limited driving even with coolant loss, though this should never be relied upon due to potential catastrophic damage.

The 2004 Cadillac DeVille shares most parts with the 2000-2005 DeVille generation, with the highest compatibility being 2000-2004 models. The 4.6L Northstar engine components interchange well across 2000-2005 DeVilles and also fit 2004-2009 Cadillac SRX, 2004-2006 STS, and various other GM vehicles with the same Northstar variant. Body panels, interior components, and suspension parts are generally compatible within the 2000-2005 model years. However, some electrical components and modules may have different part numbers between early and late production years, so verification is recommended for electronic components.

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 4.6L Northstar V8 in the 2004 DeVille has mixed reliability, with excellent performance when maintained but serious potential issues. The engine runs smoothly and provides good power, but the infamous head bolt thread failure problem makes it risky after 80,000 miles. Regular coolant changes every 30,000 miles using only Dex-Cool and monitoring for any coolant loss are critical. Never ignore overheating warnings, as the limp-home feature can mask serious damage. When properly maintained and if the head bolt issue hasn’t occurred, these engines can provide reliable service, but the potential for catastrophic failure makes them a calculated risk for high-mileage examples.