The 2006 Toyota Highlander comes standard with a 3.3-liter 3MZ-FE V6 engine producing 215 horsepower and 222 lb-ft of torque. This naturally aspirated DOHC engine features Variable Valve Timing with intelligence (VVT-i) on the intake camshaft and aluminum construction for weight savings. The 3.3L V6 provides adequate power for the Highlander’s size while maintaining reasonable fuel economy of approximately 22 mpg city and 27 mpg highway in front-wheel-drive models. This engine is known for its smooth operation and decent reliability when properly maintained with regular oil changes and timing belt service.

The 2006 Toyota Highlander shares most parts with the 2004-2007 model years of the second-generation Highlander. The 3.3L engine components are largely interchangeable with 2004-2007 models, and many parts also fit the Camry, Avalon, and Sienna with the same 3MZ-FE engine from similar years. Body panels and interior components are specific to 2004-2007 Highlanders, though some trim pieces may vary between base and Limited models. Suspension components, brakes, and drivetrain parts generally interchange within the 2004-2007 range, with AWD-specific parts only fitting other AWD models. Always verify part numbers for electrical components as there were mid-year updates.

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 engine in the 2006 Highlander is generally reliable but has some known weak points. The engine itself is robust and can easily exceed 200,000 miles with proper maintenance, particularly regular oil changes every 5,000 miles and timing belt replacement every 90,000 miles. However, the VVT-i oil lines are prone to leaking and should be inspected regularly. The water pump typically requires replacement around 100,000 miles and should be done with the timing belt. Oxygen sensors commonly fail but are relatively inexpensive to replace. Overall, this engine provides good longevity when maintained properly, though it’s not Toyota’s most bulletproof design.