Description
The 2004-2008 Acura TSX JDM engine is a high-performance 2.4L DOHC i-VTEC (K24A) unit, often considered an upgrade or direct replacement for the USDM K24A2. Imported from Japan with low mileage, these engines are known for high-compression (approx or higher) and robust 3-lobe RBB cylinder heads, providing better performance than standard replacements.
Key Features and Performance
- Engine Code: JDM K24A (often called RBB or RBB-2).
- Performance: Features the 3-lobe VTEC system for high-RPM power and improved intake/exhaust flow compared to standard K24 variants.
- High Compression: Designed with higher compression for better throttle response.
- Components: Typically includes the complete long block (block and head), valve cover, oil pan, and timing cover. 2004-2008 Acura Engine
JDM to USDM Compatibility
While a direct “bolt-on” replacement, the JDM K24A requires transferring some USDM parts to ensure compatibility with North American electronics:
While a direct “bolt-on” replacement, the JDM K24A requires transferring some USDM parts to ensure compatibility with North American electronics:
- Swap Components: Use your original intake/exhaust manifolds, wiring harness, sensors (cam, crank, knock), and injectors.
- Modification: The JDM engine might not have certain emissions ports, and in some cases, the throttle body or EGR system needs to be adapted.
Advantages
- Low Mileage: Japanese stringent inspections usually mean low-mileage ($35,000– miles).
- Performance: The 3-lobe head provides better reliability and performance at high RPMs.
- Cost: A cost-effective way to restore performance compared to a full rebuild.
| Part Code | K24A-RBB |
| SKU | 10948 |
| Brand | Acura |
| Number of Cylinders | 4 |
| Engine Size | 2.4 |
| Mileage | 55K to 65K |
| Type | Engine |
| OE/OEM Part Number | JDM |
| Country/Region of Manufacture | JAPAN |
| Warranty | 90 Days |
| Parts Inculded | 1 – Complete Engine as Pictured |
| Modification Notes | Use as long block and keep all your accessories (Intake, Exhaust Manifolds, ALT, PS, AC, etc.) |
