Acura TSX 2.4L i-VTEC engine
$1,500.00
The Honda Acura TSX K24A / K24A2 / K24A3 RBB 2.4L DOHC i-VTEC engine delivers strong power, impressive durability, and a smooth driving experience. When paired with its 6-speed manual transmission, this powertrain offers excellent performance for both daily driving and enthusiast-level builds. Because Honda designed the K-series engines with high-revving capability and strong internal strength, many mechanics and engine builders consider the K24 one of the most reliable 4-cylinder engines on the market.
This 2.4L engine uses Honda’s DOHC i-VTEC system, which actively adjusts valve lift and timing to improve low-end torque while still delivering strong top-end horsepower. As a result, the K24 provides a responsive driving feel, better fuel efficiency, and smoother power delivery. The RBB variants (K24A2 / K24A3) include performance-focused improvements such as better flowing heads, higher compression, and stronger internals, making them popular for swaps and upgrades.
This engine and transmission combination works well for:
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Acura TSX (2004–2008 depending on trim)
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Honda Accord models using K-series engines
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Honda swap projects (Civic, Integra, CR-V, custom builds)
During installation, you should replace maintenance items such as spark plugs, gaskets, filters, belts, and fluids. These fresh components help the engine perform smoothly and extend its lifespan. If needed, you can transfer sensors or accessories from your original engine to ensure ideal fitment.
If you want to learn more about the Honda K-series engine family, here is a helpful technical reference:
👉 https://en.wikipedia.org/wiki/Honda_K_engine
To explore additional Honda engines, transmissions, and components, you can browse our catalog here:
👉 https://sparepartcity.com
Because of its reliability, smooth powerband, and tuning potential, the K24 remains one of the most respected engines for both OEM replacement and performance-focused builds.
✅ ENGINE SPECIFICATION TABLE
| Specification | Details |
|---|---|
| Engine Codes | K24A, K24A2, K24A3 (RBB) |
| Displacement | 2.4L (2354 cc) |
| Configuration | Inline-4 |
| Valve Train | DOHC, 16-valve |
| Technology | Honda i-VTEC |
| Compression Ratio | 10.0:1 – 10.5:1 (varies by model) |
| Bore × Stroke | 87 mm × 99 mm |
| Power Output | 197–205 hp (varies by model/year) |
| Torque | 164–171 lb-ft |
| Transmission | 6-speed manual |
| Fuel Type | Petrol / Gasoline |
| Block Material | Aluminum |
| Cylinder Head | Aluminum |
| Compatible Models | Acura TSX, Honda Accord, Honda swap platforms |
| Mileage Condition | Typically low mileage (imported engines) |
✅ FAQsÂ
Which vehicles does the K24A/K24A2/K24A3 engine fit?
This engine fits the Acura TSX and several Honda models that use K-series engines. You can review Honda’s K-series engine history here:
👉 https://en.wikipedia.org/wiki/Honda_K_engine
Does this engine include the 6-speed manual transmission?
Yes, it comes with the matching 6-speed manual gearbox, which enhances performance and offers a more engaging driving experience.
Is the K24 engine reliable for daily driving?
Yes, the K24 is known for exceptional reliability. Many owners report long lifespans due to Honda’s strong engine design. You can read more about its engineering background here:
👉 https://en.wikipedia.org/wiki/Honda_K_engine
What should I replace during installation?
You should replace spark plugs, gaskets, filters, belts, and fluids. If you need replacement parts, you can find them here:
👉 https://sparepartcity.com
Can I use this engine for performance or swap projects?
Yes. The K24 is extremely popular for swaps into Civic, Integra, and custom builds because of its strength and tuning potential.
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