The Honda K24A4 is a 2,354 cc, inline‑four naturally aspirated petrol engine produced between 2002 and 2005. It features a dual overhead camshaft (DOHC) with four valves per cylinder, engineered for smooth, torque — rich performance in executive applications. Peak output is 160 PS (118 kW) at 6,000 rpm and 218 Nm of torque, prioritizing low — to — mid range drivability for comfortable cruising.
Fitted primarily to the seventh — generation Honda Accord (CL) and the Acura TSX…
Honda
Production years 2002–2005 meet Euro 3 emissions standards for applicable markets (Honda Emissions Certification Docs, EU Regulation (EC) No 715/2007 Annex I).
The Honda K24A4 is a 2,354 cc inline‑four naturally aspirated petrol engine engineered for executive sedans (2002-2005). It combines DOHC 16-valve design with multi-point fuel injection to deliver smooth, linear power delivery and efficient operation. Designed to meet Euro 3 emissions standards, it prioritizes refinement and everyday drivability.
| Parameter | Value | Source |
|---|---|---|
Displacement | 2,354 cc | |
Fuel type | Petrol | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Naturally Aspirated | |
Bore × stroke | 87.0 mm × 99.0 mm | |
Power output | 118 kW (160 PS) @ 6,000 rpm | |
Torque | 218 Nm @ 3,600 rpm | |
Fuel system | PGM-FI Multi-point Injection | |
Emissions standard | Euro 3 | |
Compression ratio | 9.7:1 | |
Cooling system | Water‑cooled | |
Turbocharger | None | |
Timing system | Timing Chain | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | Not specified in available OEM docs |
The Honda K24A4 was used across Honda's CL platform with transverse mounting. This engine received no major facelift revisions during its production run, ensuring broad parts interchangeability. All specifications are documented in OEM technical bulletins.
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The K24A4's primary maintenance consideration is managing potential oil consumption in high-mileage units, as documented in Honda service bulletins. While the engine is exceptionally robust, strict adherence to maintenance schedules is still advised. The timing chain is generally reliable but should be monitored for unusual noise.
Analysis derived from Honda technical bulletins (2002-2005) and aggregated owner-reported failure data (2005-2023). Repair procedures should follow manufacturer guidelines.
The most common questions about engine codes, what they mean, how to find them and how this database works
Yes, the K24A4 is renowned for its exceptional reliability and longevity when properly maintained. It has no critical timing belt to replace. With regular oil changes and adherence to the service schedule, these engines are known to easily exceed 300,000 km. High-mileage units may consume more oil, which should be monitored.
The most frequent issues are potential oil consumption in high-mileage engines and a cold-start rattle from the VTC actuator. Oil leaks from the valve cover gasket and oil pressure switch are also common with age. These are generally non-critical and well-understood issues with straightforward repairs.
The K24A4 was used in the European market seventh-generation Honda Accord (CL chassis) from 2002 to 2005 and the US-market Acura TSX from 2004 to 2005. It was marketed as the 2.4i variant in Europe and the 2.4L in the US.
Yes, the K24A4 responds well to basic tuning. Common modifications include an intake, exhaust, and ECU remap, yielding modest gains. Its robust bottom end and timing chain make it a popular and reliable platform for more significant builds, including swaps into lighter vehicles like the Civic.
Fuel economy is good for its size. Expect around 9.0-10.0 L/100km (31-28 mpg UK) in mixed driving for a manual transmission Accord. Highway cruising can see figures as low as 7.0 L/100km (40 mpg UK), depending on driving style and conditions.
Yes. The K24A4 is an interference engine. If the timing chain were to fail or jump time (though extremely rare), the pistons would collide with the open valves, causing severe internal damage that requires a costly rebuild or replacement.
Honda recommends API SJ/SL grade oil. The viscosity (5W-30 or 10W-30) depends on the climate. Using high-quality oil and changing it regularly (every 10,000 km or 6 months) is crucial for engine health, especially to manage potential oil consumption in high-mileage units.
Comprehensive technical documentation and regulatory references
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Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
GOV.UK: Vehicle Approval
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
Type-approval guidance and documentation.
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