The 2005 Toyota Highlander comes equipped with a 3.3-liter V6 engine, designated as the 3MZ-FE by Toyota. This naturally aspirated engine produces 230 horsepower at 5,600 RPM and 242 lb-ft of torque at 3,600 RPM. The engine features dual overhead cams, variable valve timing (VVT-i), and an aluminum block construction. It’s paired with a 5-speed automatic transmission and available in both front-wheel drive and all-wheel drive configurations. This engine was known for its smooth operation and adequate power for the Highlander’s size, though it requires careful maintenance to prevent oil sludge issues.

The 2005 Toyota Highlander shares most parts with the first-generation Highlander models from 2001-2007. The 3.3L V6 engine components are largely interchangeable across these years, though there were minor updates in 2004. Body panels, interior components, suspension parts, and most mechanical components interchange well within this generation. Some electrical components may vary between pre-2004 and 2004-2007 models due to minor wiring updates. The transmission, differential, and drivetrain components are generally compatible across all first-generation years. Always verify part numbers for critical components like engine management sensors and airbag systems.

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 3MZ-FE V6 engine in the 2005 Highlander is generally reliable when properly maintained, but has some notable weaknesses. The primary concern is oil sludge formation if oil changes are neglected, which can cause catastrophic engine failure. With regular oil changes every 3,000-5,000 miles using quality oil, most engines will run well past 200,000 miles. The timing chain system is robust and doesn’t require replacement like timing belts. Common maintenance items include spark plugs every 60,000 miles, coolant system service, and regular transmission fluid changes. Avoid engines with poor maintenance history, as sludge damage is often irreversible and expensive to repair.