The 2004 Infiniti G35 is equipped with Nissan’s VQ35DE 3.5-liter naturally aspirated V6 engine. This aluminum DOHC engine produces 260 horsepower at 6,000 RPM and 260 lb-ft of torque at 4,800 RPM in the sedan model. The engine features variable valve timing on the intake side, electronic throttle control, and a compression ratio of 10.3:1. Known for its smooth power delivery and distinctive exhaust note, the VQ35DE was on Ward’s 10 Best Engines list multiple times. The engine is paired with either a 5-speed automatic transmission or 6-speed manual transmission, depending on the trim level and body style chosen.

The 2004 Infiniti G35 shares most parts with the 2003-2006 G35 sedan models, as these represent the first generation with minimal changes. The VQ35DE engine components are largely interchangeable across 2003-2006, though some sensors and accessories may have minor variations. Body panels, interior components, and suspension parts from 2003-2006 sedans will typically fit. However, the 2005-2006 G35 coupe has different body panels and some interior pieces. The 2007 G35 received a refresh with updated styling and some mechanical changes, limiting compatibility. Always verify part numbers when sourcing components, as running changes occurred throughout production years even within the same generation.

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 VQ35DE 3.5L V6 in the 2004 G35 is generally reliable when properly maintained, with many examples exceeding 200,000 miles. The engine is known for its smooth operation and good longevity, though it requires regular oil changes every 3,000-5,000 miles to prevent timing chain stretch and maintain proper lubrication. Common maintenance items include replacing the camshaft position sensors around 100,000 miles and keeping up with coolant changes to prevent radiator issues. The engine responds well to premium fuel and benefits from periodic carbon cleaning. While not bulletproof, the VQ35DE has proven to be one of Nissan’s more durable engines when given proper care and attention.