The 2007 Lexus RX 400h is equipped with a 3.3-liter V6 engine (3MZ-FE) paired with Toyota’s Hybrid Synergy Drive system. This naturally aspirated engine produces 208 horsepower and works in conjunction with electric motors to deliver a combined system output of 268 horsepower. The engine features aluminum construction, dual overhead cams, and four valves per cylinder. It’s designed to operate on regular unleaded gasoline and incorporates an Atkinson cycle for improved fuel efficiency. The hybrid system allows the vehicle to run on electric power alone at low speeds, gasoline engine only, or a combination of both depending on driving conditions and power demands.

The 2007 RX 400h shares most parts with the 2006-2008 model years, as this generation remained largely unchanged during this period. The 3.3L 3MZ-FE engine components are compatible across all three years, including the hybrid system components. Many body panels, interior trim pieces, and suspension components interchange perfectly. However, there were minor updates to certain electrical components and software calibrations between years. The 2009 model year brought significant changes with a refresh, so compatibility becomes more limited. For hybrid-specific components like the battery pack and inverter, all 2006-2008 parts are generally interchangeable, though software calibrations may vary slightly.

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 3MZ-FE 3.3L V6 engine in the RX 400h is generally reliable and well-built, with many examples exceeding 200,000 miles with proper maintenance. The engine itself rarely experiences major internal failures, though it can develop carbon buildup on intake valves due to the port injection system. Regular oil changes every 5,000 miles and using quality fuel help prevent issues. The hybrid system reduces stress on the engine by allowing it to shut off frequently, potentially extending its lifespan. However, the complexity of the hybrid system means additional maintenance considerations for components like the hybrid battery, inverter cooling system, and various sensors. Overall, it’s a dependable powertrain when maintained properly, though repair costs can be higher due to the hybrid technology.