The Honda K24A1 is a 2,354 cc, inline‑four naturally aspirated petrol engine produced between 2002 and 2005. It features a dual overhead camshaft (DOHC) 16‑valve cylinder head and Honda's PGM‑FI fuel injection system. This configuration was designed for robust, torquey performance in premium compact applications, producing 118 kW (160 PS) with an emphasis on low — to — mid range drivability.
Fitted primarily to the seventh — generation Accord Euro — R and certain CR — V va…
Honda
Production years 2002–2005 meet Euro 3 emissions standards for their respective model years and markets .
The Honda K24A1 is a 2,354 cc inline‑four naturally aspirated petrol engine engineered for mid-size sedans and SUVs (2002-2005). It combines DOHC 16-valve architecture with PGM-FI fuel injection to deliver smooth, powerful performance. Designed to meet Euro 3 emissions standards, it balances everyday drivability with Honda's reputation for reliability.
| 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 @ 3,500 rpm | |
Fuel system | Honda PGM-FI (Programmed Fuel Injection) | |
Emissions standard | Euro 3 | |
Compression ratio | 9.7:1 | |
Cooling system | Water‑cooled | |
Turbocharger | None | |
Timing system | Chain-driven DOHC | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 155 kg |
The Honda K24A1 was used across Honda's CL/RD platforms with transverse mounting. This engine received minimal platform-specific adaptations during its production run, ensuring good parts interchangeability. All adaptations are documented in OEM technical bulletins.
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The K24A1's primary reliability consideration is balance shaft bearing wear, with elevated incidence in high-mileage or poorly maintained examples. Honda service data indicates this is a common wear item after 150,000 km, often linked to infrequent oil changes. Regular oil changes and prompt attention to engine vibration are key to long-term trouble-free operation.
Analysis derived from manufacturer technical service bulletins and industry workshop records. 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 K24A1 is exceptionally reliable for long-term use, provided oil changes are performed religiously every 10,000 km or 6 months. Its robust, torquey design is proven, but the balance shaft bearings are a known wear item if maintenance is neglected. With proper care, it can easily surpass 250,000 km without major issues.
The most common issues are balance shaft bearing wear and VTC actuator failure, both often linked to poor oil maintenance. Exhaust manifold cracks and valve cover gasket leaks are also common but less critical. These are all well-documented in Honda service literature.
The K24A1 was primarily used in the European-spec seventh-generation Honda Accord Euro-R (CL7) from 2002 to 2005. It was also fitted to the CR-V (RD1, RD2) from 2002 to 2005. It was not used in other Accord trims or in other Honda vehicle lines during this period.
Aftermarket ECU tuning is common on the K24A1 platform, but increasing boost or altering engine parameters accelerates component wear, impacts emissions compliance, and may void vehicle warranties. Any modifications should be evaluated carefully by a qualified specialist.
Fuel economy is very good for its era. Expect around 9.0-10.0 L/100km (28-31 mpg UK) in mixed driving for a manual transmission Accord. Careful highway driving can return figures closer to 7.5 L/100km (38 mpg UK), making it an economical choice.
Yes. The K24A1 is a definitive interference engine. If the timing chain were to fail (which is rare), the pistons will collide with the valves, causing severe and expensive internal damage. This makes oil and maintenance critical for long-term survival.
Honda recommends 5W-30 or 10W-30 engine oil meeting API SJ/CF or higher specifications. Using a high-quality synthetic or semi-synthetic oil of the correct viscosity is crucial for protecting the engine, especially the balance shaft bearings, and ensuring long life.
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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