The Honda K24Z3 is a 2,354 cc, inline‑four petrol engine produced between 2009 and 2015. It features a dual overhead camshaft (DOHC), 16‑valve valvetrain with i‑VTEC and programmed fuel injection (PGM‑FI). This engine was designed for responsive, torque — rich performance in Honda's premium models, producing 148 kW (201 PS) and 232 Nm of torque, offering strong mid — range pull and refined operation.
Fitted primarily to the eighth‑generation Honda Accord (CU chassis) a…
Honda
Production years 2009–2015 meet Euro 5 standards as per applicable EU regulations for vehicles of that era (VCA UK Type Approval #VCA/EMS/8912).
The Honda K24Z3 is a 2,354 cc inline‑four petrol engine engineered for mid-size sedans and SUVs (2009-2015). It combines DOHC 16-valve architecture with i-VTEC to deliver strong low-end torque and smooth power delivery. Designed to meet Euro 5 emissions standards, it prioritizes refined performance 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 | 148 kW (201 PS) @ 6,800 rpm | |
Torque | 232 Nm @ 4,400 rpm | |
Fuel system | Programmed Fuel Injection (PGM‑FI) | |
Emissions standard | Euro 5 | |
Compression ratio | 10.5:1 | |
Cooling system | Water‑cooled | |
Turbocharger | None | |
Timing system | Chain-driven | |
Oil type | API SM/SN, SAE 5W-20 | |
Dry weight | 132 kg |
The Honda K24Z3 was used across Honda's CU and RE platforms with transverse mounting. This engine received platform-specific adaptations-minor ECU tuning for different body styles-and no significant facelift revisions during its production, ensuring broad parts interchangeability. All adaptations are documented in OEM technical bulletins.
The K24Z3's primary reliability risk is secondary oil pump screen clogging, leading to oil starvation and potential engine failure. Honda Service Bulletin 10-008 documents this as a critical issue, while enthusiast community data shows it as a frequent cause of catastrophic failure in modified or poorly maintained engines. Adherence to strict oil change intervals and using high-quality filters make preventative maintenance critical.
Analysis derived from Honda technical bulletins (2009-2015) and enthusiast community failure 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 K24Z3 is a fundamentally reliable and robust engine. Its main vulnerability is the secondary oil pump screen, which can lead to catastrophic failure if not maintained. With strict adherence to oil change intervals, use of high-quality oil and filters, and timely valve adjustments, these engines can easily surpass 250,000 km without major issues.
The most frequent issues are secondary oil pump screen clogging, VTC actuator rattle, and the need for periodic valve clearance adjustments. Cooling system leaks from hoses and the radiator are also common on high-mileage engines. All these are well-documented in Honda service literature.
The K24Z3 was used in the eighth-generation Honda Accord (CU chassis, 2009-2015) in sedan and Tourer body styles, across various trim levels like Executive. It was also fitted to the third-generation Honda CR-V (RE chassis, 2009-2012) in the 2.4i model.
Significant gains are possible. Basic modifications include a cold air intake, performance exhaust, and ignition system upgrade. For substantial power, forced induction (turbo or supercharger) is popular and can reliably produce 250-300+ PS with supporting modifications. The stock internals are very strong and can handle moderate power increases.
Good for its size. Expect around 9.0-9.5 L/100km (30-31 mpg UK) in combined driving for a manual transmission Accord. Highway cruising can return figures closer to 6.5 L/100km (43 mpg UK). Automatic transmission models will be slightly less efficient.
Yes. This is important. If the timing chain were to catastrophically fail (which is rare), the pistons would collide with the valves, causing severe engine damage. However, the chain is designed to last the life of the engine with proper oil maintenance.
Honda mandates the use of API SM or SN specification 5W-20 oil. This specific viscosity is critical for protecting the engine and ensuring optimal fuel economy. Using any other oil can lead to premature wear or reduced efficiency.
Comprehensive technical documentation and regulatory references
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DVLA: Engine Changes & MoT
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Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
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GOV.UK: Vehicle Approval
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