The Honda K24A is a 2,354 cc, inline‑four naturally aspirated petrol engine produced between 2002 and 2008. It features a dual overhead camshaft (DOHC) 16‑valve layout with Honda's i — VTEC variable valve timing system. This configuration prioritizes strong low — end torque and smooth, linear power delivery, producing a peak output of 160 PS.
Fitted primarily to the European‑spec Honda Accord (CL chassis) and CR — V (RD1), the K24A was engineered for refined, responsive p…
Honda
Production years 2002–2008 meet Euro 3 standards for vehicles registered from January 2000 .
The Honda K24A is a 2,354 cc inline‑four naturally aspirated petrol engine engineered for mid-size sedans and SUVs (2002-2008). It combines DOHC 16-valve architecture with i-VTEC variable valve timing to deliver a broad, accessible powerband. Designed to meet Euro 3 emissions standards, it balances responsive performance with everyday refinement.
| Parameter | Value | Source |
|---|---|---|
Displacement | 2,354 cc | |
Fuel type | Petrol | |
Configuration | Inline‑4, DOHC, 16‑valve (i-VTEC) | |
Aspiration | Naturally Aspirated | |
Bore × stroke | 87.0 mm × 99.0 mm | |
Power output | 160 PS (118 kW) @ 5,500 rpm | |
Torque | 21.9 kgf·m (215 Nm) @ 4,500 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 | Not specified in primary sources |
The Honda K24A was used across Honda's CL and RD platforms with transverse mounting and was not licensed to other manufacturers. This engine received minor platform-specific adaptations-primarily in accessory bracket positioning for the Accord versus the CR-V-and no major facelift revisions occurred during its production run, ensuring good interchangeability within its model years. All adaptations are documented in OEM technical bulletins.
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The K24A's primary reliability consideration is maintaining the i-VTEC system, with neglect leading to solenoid failure and loss of high-RPM power. Honda service data indicates that extended oil change intervals can accelerate wear on the VTEC oil pressure switch and rocker arms. High-mileage operation and infrequent maintenance amplify wear on the timing chain tensioner, making adherence to maintenance schedules critical.
Analysis derived from Honda technical bulletins (2002-2009) and aggregated workshop repair data. 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 K24A is generally very reliable when properly maintained. Its i-VTEC system is robust but requires clean oil for optimal operation. The key to longevity is adhering to oil change intervals and addressing any VTEC-related warning lights promptly. With care, these engines can easily surpass 200,000 miles without major issues.
The most frequent issues are failing VTEC solenoids or oil pressure switches, causing the high-RPM power boost to not engage. Timing chain tensioner wear can cause noise, and valve cover gasket leaks are common on high-mileage engines. These are generally manageable with proper maintenance.
The K24A was used in the seventh-generation (2003-2008) European-spec Honda Accord 2.4i (CL9 chassis) and the second-generation (2002-2006) Honda CR-V (RD1 chassis). It offered more torque than the smaller K20 engines in these models.
Yes, the K24A is a capable tuning platform. Basic modifications like an intake, exhaust, and header can yield noticeable gains. More advanced builds involve head porting, higher compression pistons, and aggressive camshafts. The bottom end is strong enough to handle moderate power increases. ECU tuning is essential for modified setups.
Fuel economy is moderate for its size. Expect around 9.5-10.5 L/100km (30-27 mpg UK) in mixed driving for a stock Accord or CR-V. Highway cruising can achieve 7.5-8.0 L/100km (38-35 mpg UK). It strikes a good balance between power and efficiency.
Yes. The Honda K24A is an interference engine. If the timing chain fails or jumps teeth, the pistons will collide with the open valves, causing severe internal damage requiring a major engine rebuild. This underscores the importance of maintaining the timing chain system, although failures are rare.
Honda originally specified 5W-30 API SL/SM semi-synthetic or full synthetic oil. Modern high-quality 5W-30 full synthetic oils meeting API SN or SP standards are perfectly suitable and offer better protection, especially for the i-VTEC system which relies on clean, high-pressure oil.
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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