The 2005 Toyota Sienna comes equipped with a 3.3-liter V6 engine (1MZ-FE) that produces 230 horsepower and 242 lb-ft of torque. This naturally aspirated, dual overhead cam engine features aluminum construction with iron cylinder liners and Toyota’s VVT-i variable valve timing system. The engine is paired with a 5-speed automatic transmission and is available in both front-wheel drive and all-wheel drive configurations. This powerplant provides adequate performance for a full-size minivan while maintaining reasonable fuel economy of approximately 19 city/26 highway mpg in FWD models.

The 2005 Toyota Sienna shares most parts with the 2004-2010 second-generation Sienna models. Engine components from the 3.3L V6 are largely interchangeable across these years, though some sensors and emissions components may vary. Body panels, interior trim, and many mechanical parts interchange well within the 2004-2006 model years, with some changes occurring in 2007 for the mid-cycle refresh. Transmission parts are compatible across 2004-2010 for the 5-speed automatic. Always verify part numbers as Toyota made running changes throughout production, and AWD vs FWD models have different drivetrain 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 3.3L 1MZ-FE V6 in the 2005 Sienna is generally reliable when properly maintained, but requires diligent care to avoid oil sludge issues. Regular oil changes every 5,000 miles or less are absolutely critical, as this engine is susceptible to sludge buildup that can cause catastrophic failure. The timing belt should be replaced every 90,000 miles along with the water pump. When maintained properly, these engines commonly reach 200,000+ miles. However, neglected examples often fail prematurely due to oil-related problems. The engine is known for smooth operation and adequate power delivery throughout its service life.