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Is Lexus IS250 4 cylinder or 6 cylinder?

The Lexus IS250 uses a 2.5-liter V6 engine, so it is a six-cylinder vehicle, not a four-cylinder.


Engine design and performance


The IS250 sits in the middle of the IS lineup and is powered by a 2.5-liter V6. This setup delivers smooth, refined performance suitable for everyday driving and highway cruising. Most markets paired the engine with a 6-speed automatic transmission, and all-wheel drive was available on select trims in certain regions.


Key facts about the IS250 engine:



  • Displacement: 2.5 liters

  • Cylinder configuration: 6 (V6)

  • Power output: approximately 204 horsepower (varies slightly by model year and market)

  • Torque: around 185 lb-ft (varies by market)

  • Drivetrain: rear-wheel drive standard; optional all-wheel drive on some trims

  • Transmission: typically a 6-speed automatic


In practical terms, the IS250 is a six-cylinder model, distinct from four-cylinder IS variants that exist in certain markets or generations.


Market variations


Across regions, the IS250 maintained the same 2.5-liter V6 core, but there could be differences in tuning, emissions equipment, and available drivetrains. Some markets offered AWD and different equipment packages, while others focused on particular performance or luxury configurations.


Related models for comparison


The IS350 uses a larger 3.5-liter V6 for higher performance, while older IS variants in various markets used four-cylinder engines under different names. For buyers, always verify the exact engine specification listed in the vehicle’s documentation or VIN for a given example.


Summary


The Lexus IS250 is powered by a 2.5-liter V6 engine, making it a six-cylinder model rather than a four-cylinder. This distinction helps differentiate it from other IS variants and from IS models in markets or generations that use four-cylinder powertrains. When evaluating a used IS, confirm the exact engine in the listing to avoid confusion.

Is there a 4 cylinder Lexus IS?


Engine, Transmission, and Performance
The 2025 IS has three engine options: a 241-hp turbocharged 2.0-liter four-cylinder in the IS300, a 311-hp V-6 in the IS350, and a 472-hp V-8 in the IS500.



What engine comes in the IS250?


The Lexus IS250 has a 2.5-liter V6 engine that produces 204 horsepower and 185 lb-ft of torque. This engine was used across various model years, though later models sometimes feature a turbocharged 2.0-liter engine.
 

  • Engine type: 2.5L V6 
  • Horsepower: 204 hp 
  • Torque: 185 lb-ft 
  • Note: Some later models may have a different engine, such as the IS 200t with a turbocharged 2.0-liter four-cylinder engine, which has more torque than the 2.5L V6. 



Is the Lexus IS 250 a V-6?


Yes, the Lexus IS250 is equipped with a V6 engine. Specifically, it features a 2.5-liter V6 that was available in rear-wheel or all-wheel drive configurations.
 
You can watch this video to learn more about the Lexus IS250 V6 engine: 1mBern on CarsYouTube · Mar 24, 2025

  • Engine displacement: The engine is a 2.5-liter V6. 
  • Engine type: It is a gasoline-powered V6 engine. 
  • Performance: The 2.5-liter V6 produces around 204 horsepower, depending on the model year. 
  • Transmission: The IS250 could be paired with a six-speed manual or a six-speed automatic transmission. 
  • Drivetrain: It was available as a rear-wheel-drive vehicle, with an all-wheel-drive version offered as well, which came exclusively with the automatic transmission. 

This video shows a test drive of the Lexus IS250 V6: 54sDM Car ReviewsYouTube · Mar 15, 2024



Is Lexus IS 250 4 cylinder or 6 cylinder?


Powertrains

Calendar year(s)Model no(s).Engine type
2005–2013IS 2502.5 L V6
IS 250 AWD
2005–2013IS 3503.5 L V6
2006–2013IS 3003.0 L V6


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Kevin Bennett

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Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.