What type of motor is in the TSX?
The Acura TSX is powered by a 2.4-liter inline-4 gasoline engine from Honda’s K-series family, featuring the i-VTEC variable-valve timing system. Across its two generations, the TSX used two related K-series tuned motors, providing smooth performance and reliable everyday driving.
Two generations, two K-series engines
To understand what powers the TSX, it helps to map the generations and their engine codes.
- First generation (2004–2008): 2.4-liter i-VTEC inline-4 in the K24A-series (commonly referenced as K24A2), configured for front-wheel drive.
- Second generation (2009–2014): 2.4-liter i-VTEC inline-4 in the K24Z-series (commonly K24Z3), tuned for higher output while retaining the same basic architecture.
The engine family is known for its smooth operation, broad low- to mid-range torque, and the efficiency benefits of Honda’s i-VTEC system.
Performance and specs
Here are the typical output ranges by generation:
- First generation: about 200 horsepower and roughly 160–164 lb-ft of torque.
- Second generation: about 201 horsepower and about 172 lb-ft of torque.
Both generations employ Honda’s i-VTEC technology to optimize valve timing across the rev range, and both are part of the broader K-series family noted for reliability and strong mid-range response.
Additional notes about the motor
The TSX engine is designed to run on regular unleaded gasoline and is typically paired with either a 5-speed automatic or a 6-speed manual transmission, depending on trim and model year. While the core architecture remains the same, refinements across generations improve efficiency and responsiveness.
Summary: The TSX uses a 2.4-liter inline-4 i-VTEC engine from Honda’s K-series family. The early models used the K24A2 variant, while later models used the K24Z3 variant, delivering roughly 200–201 hp and about 160–172 lb-ft of torque.
In brief, the TSX’s motor is a gasoline, inline-4, i-VTEC-equipped engine from Honda’s K-series—reliable, well-regarded, and tuned differently across its two production eras to balance efficiency with spirited performance.
Which Acura TSX has K24?
The 2004-2014 Acura TSX model years all use a version of the K24 engine, specifically the K24A2 in the first generation (2004-2008) and a variant of the K24 in the second generation (2009-2014). The second generation TSX's K24 engine produced 201 horsepower in 2012, with a 2.4-liter inline four-cylinder DOHC i-VTEC engine.
- First Generation (2004-2008): The K24A2 engine was used, producing 200 horsepower.
- Second Generation (2009-2014): The second generation continued to use a K24 engine, with some later model years featuring a 2.4-liter i-VTEC variant producing 201 horsepower.
Which engine does the TSX have?
The engine is a 2.4-liter in-line 4-cylinder engine reaching 201 hp (150 kW) and 172 lb⋅ft (233 N⋅m) torque.
What motor is in the 2010 Acura TSX?
The 2010 Acura TSX was available with two engines: a 2.4-liter, 4-cylinder DOHC i-VTEC engine and an optional 3.5-liter, 6-cylinder SOHC V6 engine. The 2.4L produces 201 horsepower, while the 3.5L V6 produces 280 horsepower. The 4-cylinder could be paired with a 6-speed manual or 5-speed automatic transmission, while the V6 was only available with the 5-speed automatic.
2.4-liter inline-4
- Engine type: 2.4-liter DOHC i-VTEC inline-4
- Horsepower: 201 hp @ 7,000 rpm
- Torque: 172 lb-ft @ 4,300 rpm (6-speed manual) or 170 lb-ft @ 4,300 rpm (5-speed automatic)
- Transmission: 6-speed manual or 5-speed automatic
- Fuel economy (EPA estimated): 20/28/23 mpg (city/highway/combined) for the manual and 21/30/24 mpg for the automatic
3.5-liter V6
- Engine type: 3.5-liter SOHC V6
- Horsepower: 280 hp @ 6,200 rpm
- Torque: 254 lb-ft @ 5,000 rpm
- Transmission: 5-speed automatic only
- Fuel economy (EPA estimated): 18/27/21 mpg (city/highway/combined)
- Notes: This engine was an optional upgrade and featured cold air induction and a dual-stage induction system.
Which K24 is in the TSX?
The following is a list of all the cars that have come equipped with a K24 engine in the United States: K24A1: 2002-2009 Honda CR-V. K24A2: 2004-2008 Acura TSX.
