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 (facelift), the K24A4 was designed for refined, reliable transportation with an emphasis on linear power and refinement. Emissions compliance for its production era was achieved through PGM-FI multi-point fuel injection and a catalytic converter, meeting Euro 3 standards as certified for its model years.
One documented service consideration is potential oil consumption in high-mileage units, a characteristic noted in Honda Service Bulletin 04-033 for certain K-series engines under specific operating conditions. This is typically attributed to normal wear of piston rings and valve seals over extended service life. Honda recommended monitoring oil levels and adhering to specified maintenance intervals to manage this.
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 | API SJ/SL 5W-30 or 10W-30 | |
| Dry weight | Not specified in available OEM docs |
The DOHC design offers robust reliability and smooth power delivery. The timing chain is designed for longevity but should be inspected if unusual noise is detected. Using the correct viscosity oil is essential for engine longevity. High-mileage units may exhibit increased oil consumption, a documented characteristic addressed by Honda through maintenance advisories.
Oil Specs: Requires API SJ/SL specification oil (Honda Service Manual 02-05 Accord). Viscosity grade depends on ambient temperature.
Emissions: Certified to Euro 3 standards for model years 2002-2005 (Honda Emissions Certification Docs, EU Regulation (EC) No 715/2007).
Power Ratings: Measured under SAE net standards. Power figures are for stock, unmodified engines (Honda Group PT-2004).
Honda Technical Information System (Helm): Service Manual 02-05 Accord
Honda Service Bulletin Database: SIB 04-033
Honda Electronic Parts Catalog (EPC): Doc. H-K24A4-001
SAE International: J1349 Engine Power Certification Standards
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.
Locate the engine code stamped on the front of the engine block, near the timing chain cover (Honda Service Manual 02-05 Accord). The 8th digit of the VIN for European Accord models is typically '4' for the K24A4. Visually, it can be identified by its black or silver valve cover labeled "K24A". Critical differentiation from the K24A2: The K24A4 has a lower power output (160 PS vs 200 PS) and different cam profiles. Service parts like the cylinder head and pistons are specific to the K24A4 variant.
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.
Find answers to most commonly asked questions about HONDA K24A4.
Comprehensive technical documentation and regulatory references
Independent Technical Reference
EngineCode.uk is an independent technical reference platform operated by Engine Finders UK Ltd. We are not affiliated with HONDA or any other manufacturer. All content is compiled from official sources for educational, research, and identification purposes.
Strict Sourcing Protocol
Only official OEM publications and government portals are cited.
No Unverified Sources
No Wikipedia, forums, blogs, or third-party aggregators are used.
Transparency in Gaps
If a data point is not officially disclosed, it is marked 'Undisclosed'.
Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
HONDA Official Site
Owner literature, service manuals, technical releases, and plant documentation.
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.
Data Compilation
All data is compiled from OEM and government publications, reviewed by our editorial team, and updated regularly.
Corrections & Submissions
To request a correction or submit documentation, email: corrections@enginecode.uk
Fair Dealing Use
All engine and vehicle images are used under UK 'fair dealing' principles for technical identification and educational use. Rights remain with their respective owners.
Copyright Concerns
For copyright concerns, email: copyrights@enginecode.uk
GDPR Compliance
EngineCode.uk complies with UK GDPR. We do not collect personal data unless explicitly provided.
Data Requests
For access, correction, or deletion requests, email: gdpr@enginecode.uk
Trademark Notice
All trademarks, logos, and engine codes are the property of their respective owners. Use on this site is strictly for reference and identification.
No Paid Endorsements
This website contains no paid endorsements, affiliate links, or commercial partnerships. We do not sell parts or services.
Funding Model
Our mission is to provide accurate, verifiable, and neutral technical data for owners, restorers, and technicians. This site is self-funded.
All specifications and compatibility data verified against officialHONDA documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed“ .
All external links open in new tabs. Please verify current availability of resources.
