Upgrade your build or replace your existing motor with a high-performance JDM K24A RBB-3 engine sourced directly from Japan. This low-mileage 2.4L DOHC VTEC engine comes from the 2003–2008 Acura TSX, known for its reliable power and impressive VTEC engagement. Backed by our 90-day start-up warranty, this engine is compression-tested and verified to meet our rigorous standards at J-Spec Auto, your trusted importer of quality JDM engines, JDM transmissions, and JDM parts.

This JDM K24A RBB-3 variant features the sought-after 3-lobe camshaft design, allowing for greater tuning potential and compatibility with performance VTEC controllers. The RBB-3 head is highly favored by enthusiasts building street or track-ready cars, and is often used in K-series engine swaps. Whether you’re working on a Civic, Integra, or CRX swap, or refreshing your TSX, this engine is a perfect blend of power, durability, and versatility.

Each engine is carefully inspected by our technicians and fully compression-tested before shipment to ensure reliability upon installation. At J-Spec Auto, we import only premium JDM engines from reliable Japanese sources, offering our customers the confidence they need for their performance builds. This K24A engine comes complete with:

• K24A RBB-3 long block

• DOHC VTEC head with 3-lobe cams

• Intake and exhaust manifolds (may vary)

• Coil packs, injectors, sensors (as pictured)

• Low-mileage assurance (est. under 60K miles)

Whether you’re replacing a worn engine or upgrading your Honda build, this JDM K24A RBB-3 engine provides exceptional value and performance. Ideal for Honda enthusiasts, mechanics, and engine builders looking for reliable and clean JDM motors.

Trust J-Spec Auto Sports for your next engine swap — we specialize in JDM engines and transmissions, with expert support and fast shipping across the U.S. and Canada. Our knowledgeable team is here to help you find the right motor for your platform.

Browse our selection of JDM K-series engines, including K20A, K24A, and more at J-Spec Auto. Whether you’re restoring a TSX, building a swap project, or just need a reliable replacement engine, this K24A RBB-3 VTEC engine is the perfect choice.