What kind of engine is in the Lexus RX 350?
The Lexus RX 350 currently uses a 2.4-liter turbocharged inline-4 engine producing about 275 horsepower and 317 lb-ft of torque, paired with an eight-speed automatic transmission and available with all-wheel drive.
Across its recent generations, the RX 350 has shifted from a traditional V6 to a modern turbocharged four-cylinder in the gas-powered model. The RX lineup also includes a hybrid variant, the RX 350h, which uses a separate powertrain for efficiency. This article outlines the current engine in the RX 350 and how it compares with earlier configurations.
Engine configurations over recent RX 350 generations
Below is a quick comparison of the powertrains that have carried the RX 350 badge in the last several model years.
- Current generation (model years 2023–present): 2.4-liter turbocharged inline-4; about 275 horsepower and 317 lb-ft of torque; eight-speed automatic; available with front-wheel drive or all-wheel drive.
- Previous generation (model years 2019–2022): 3.5-liter naturally aspirated V6; about 295 horsepower and 268 lb-ft of torque; eight-speed automatic; available with front-wheel drive or all-wheel drive.
The move from the V6 to a turbocharged four-cylinder in 2023 reflects Lexus’s push for improved efficiency while maintaining strong on-road performance.
Hybrid and related powertrains in the RX lineup
Shoppers should also consider the hybrid variant in the RX family, which uses a different powertrain and tuning.
- RX 350h: hybrid powertrain combining a 2.5-liter inline-4 with electric motors; combined output around 246 horsepower; uses an electronic CVT; available with front-wheel drive or all-wheel drive.
Hybrids prioritize fuel economy and smooth, quiet acceleration, while the gas-only RX 350 models emphasize a balance of performance and efficiency depending on the engine (turbo-4 or V6 in different generations).
What this means for buyers
For buyers, understanding the engine differences helps in selecting the RX 350 that best fits priorities like power, fuel economy, and driving feel. The current RX 350 uses a turbocharged four-cylinder for a blend of performance and efficiency, while older model years relied on a V6. If maximum efficiency is the goal, the RX 350h hybrid offers a distinct option within the same model family. Always verify the exact engine, drivetrain, and model year when evaluating a used RX 350.
Practical considerations for ownership
Consider factors such as maintenance costs, fuel economy, and availability of all-wheel drive when choosing between the turbo-4, V6, or hybrid variants. Transmission behavior, throttle response, and drive mode selections can influence the perceived performance of each powertrain across model years.
Summary
The Lexus RX 350 has migrated from a 3.5-liter V6 to a modern 2.4-liter turbocharged inline-4 in the current generation, delivering strong power with improved efficiency. The RX 350h offers a separate hybrid path for those prioritizing economy, while older RX 350 models used the V6 configuration. Buyers should confirm the exact engine and drivetrain for their model year and trim to understand real-world performance and fuel economy.
