Which K24 Engine Is in the 2006 Honda Accord?

For most 2006 Honda Accord models sold in the U.S. and Canada, the 2.4‑liter four‑cylinder engine is the K24A8. In other markets and trims, different K24 variants were used, notably the K24A2/K24A3 in the sportier Accord Euro/Acura TSX and the K24A in certain Japanese domestic models. Below is a breakdown by market and how to confirm what’s in your car.

Engine Code by Market and Model

Honda paired different K24 variants with the seventh‑generation Accord depending on region and trim. The following list summarizes the most common configurations for the 2006 model year.

• North America (U.S./Canada) — Honda Accord 2.4: K24A8 (approx. 166 hp, ~160 lb‑ft; DOHC i‑VTEC, 9.7:1 CR)
• North America — Acura TSX (Accord Euro equivalent): K24A2 (200–205 hp depending on year; higher‑lift cams, 10.5:1 CR)
• Australia/Europe — Accord Euro (CL9): K24A3 (roughly 140 kW/188 hp; similar to A2 with region‑specific tuning)
• Japan (CL9/CM models) — Accord 2.4: K24A (various tunes, often around 190–200 PS depending on trim/emissions)
• Note: Accord Hybrid (U.S.) used a 3.0‑liter V6, not a K‑series engine.

While the K24A8 is the typical engine for a 2006 Accord in the U.S. and Canada, the K24A2/A3 and K24A appear in markets where the “Accord Euro” (TSX/CL9) was sold, reflecting sportier calibration and local emissions rules.

Why the K24 Variant Differs

Honda’s K24 family shares a common architecture (87.0 mm bore, 99.0 mm stroke), but variants differ in cam profiles, intake/exhaust, compression ratio, and ECU calibration to meet market demands. The mainstream Accord received the more economy‑oriented K24A8, while the Euro/TSX got performance‑leaning A2/A3 tunes.

Key Specs: K24A8 in the 2006 U.S./Canada Accord

The K24A8 balances everyday drivability and efficiency. Here are the headline figures owners typically reference.

• Displacement: 2,354 cc (87 x 99 mm)
• Configuration: DOHC i‑VTEC inline‑4 (intake-cam VTEC on economy/performance lobes)
• Output (factory rating): about 166 hp @ ~5,800 rpm; ~160 lb‑ft @ ~4,000 rpm
• Compression ratio: approximately 9.7:1
• Fuel: Regular unleaded recommended in North America

These figures may vary slightly by transmission and certification cycle, but they reflect the widely published specs for the 2006 model year refresh.

How to Confirm the Engine in Your Car

If your Accord’s market history is unclear, you can verify the exact engine code with a few quick checks.

• Under‑hood emissions label: Often lists the engine family; look on the underside of the hood or radiator support.
• Engine block stamping: “K24A8,” “K24A2,” etc., is stamped on the block face (radiator side), below the cylinder head.
• Owner’s manual/service records: Dealer invoices and service printouts frequently note the engine code.
• Trim and market clues: U.S. Accord LX/EX 2.4 ≈ K24A8; Acura TSX/Accord Euro ≈ K24A2/A3.

Cross‑checking two or more sources—label plus block stamping—is the most reliable way to eliminate any uncertainty due to engine swaps or imports.

What This Means for Parts and Maintenance

While many parts interchange across K24 variants, cams, intake/exhaust components, ECU calibration, and some sensors differ. Always order parts by engine code and VIN to ensure compatibility.

Summary

The 2006 Honda Accord in the U.S. and Canada uses the K24A8 2.4‑liter engine. In performance‑oriented “Accord Euro”/Acura TSX models, you’ll find the K24A2 (North America) or K24A3 (Australia/Europe), and some Japanese models carry the K24A. If in doubt, confirm via the under‑hood emissions label and the engine block stamping.

What is the difference between K24A1 and K24A2?

The cylinder head is different for the most part. K24a2 has real vtec, k24a1 doesn’t for all intents and purposes. You can still make a ton of power with the cast block and PPA head of the A1 but it’s not the typical Honda build starting point.

What engine is in the 2006 Honda Accord?

The 2006 Honda Accord offers two engine options: a 2.4L inline-4 and a 3.0L V6. The 2.4L 4-cylinder engine, code-named K24A8, produces 166 horsepower and 160 lb-ft of torque. The 3.0L V6, designated J30A5, delivers 244 horsepower and 211 lb-ft of torque. 
Both engines feature Honda’s i-VTEC system for variable valve timing and lift. The 2.4L engine is known for its good low-end torque and fuel efficiency, while the V6 offers more power and a sportier driving experience.

What cars have a J32A2 engine?

J32A2

• 2001–2003 Acura CL Type-S.
• Bore and Stroke: 89mm x 86mm.
• 10.5:1 Compression.
• 2002–2003 Acura TL Type-S.
• 2002–2003 Honda Inspire Type-S.

Which K24 engine is in the 2006 Honda Accord?

Honda Accord 03-06 K24A DOHC.