The Honda K24A8 is a 2,354 cc, inline‑four petrol engine produced between 2008 and 2012. It features a dual overhead camshaft (DOHC) with 4 valves per cylinder and Honda's i — VTEC system, which continuously varies intake valve timing for optimal efficiency across the rev range. In standard form it delivered 201 PS, offering a blend of strong low — end torque and refined highway cruising.
Fitted primarily to the fourth — generation Honda CR — V (RE chassis) in North American ma…
Honda
Production years 2008–2012 meet applicable US Federal Tier 2 Bin 5 emissions standards for its model year and market (EPA Certification Docs).
The Honda K24A8 is a 2,354 cc inline‑four petrol engine engineered for compact SUVs (2008-2012). It combines DOHC 16-valve architecture with i-VTEC variable valve timing to deliver strong, linear torque and refined, efficient performance. Designed to meet US Federal Tier 2 Bin 5 emissions regulations, it offers reliable, everyday capability.
| 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 | 201 PS (148 kW) @ 6,800 rpm | |
Torque | 225 Nm @ 4,400 rpm | |
Fuel system | Honda PGM-FI (Programmed Fuel Injection) | |
Emissions standard | US Federal Tier 2 Bin 5 | |
Compression ratio | 10.5:1 | |
Cooling system | Water‑cooled | |
Turbocharger | None | |
Timing system | Timing chain | |
Oil type | API SM/SN, 5W-20 | |
Dry weight | Not specified in available OEM docs |
The Honda K24A8 was used primarily in Honda's fourth-generation CR-V platform with transverse mounting. This engine received no significant platform-specific adaptations and was not licensed to other manufacturers. All applications are documented in OEM parts catalogues.
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The K24A8's primary reliability risk is related to oil maintenance, with no elevated incidence in specific conditions. Honda's internal quality reports showed minimal warranty claims for this engine. Regular oil changes with the correct viscosity ensure its inherent robustness. Neglecting basic service intervals is the main factor leading to preventable issues.
Analysis derived from Honda technical bulletins (2007-2013) and general automotive engineering principles. Repair procedures should follow manufacturer guidelines.
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Yes, the K24A8 is highly reliable long-term. Its DOHC i-VTEC design is robust and proven. With basic maintenance, especially regular oil changes with the correct 5W-20 oil, it can easily surpass 250,000 km. It is considered one of Honda's most durable and trouble-free engines for SUV applications.
The most common issues are VTC actuator failure, valve cover gasket leaks, timing chain tensioner wear, and exhaust manifold cracks. These are typical maintenance items for engines of this era and are not indicative of fundamental design flaws.
The K24A8 was used almost exclusively in the fourth-generation (2008-2012) Honda CR-V (RE chassis) for the North American market, specifically in the EX, EX-L, and Touring trims. It was not used in the base LX trim or in other Honda models during this period.
Yes, moderately. Basic bolt-ons (intake, exhaust) can yield small gains. More significant power increases are possible with aggressive camshafts and ECU tuning, though its non-VTEC exhaust cam limits high-RPM potential compared to the K20. The stock ECU can be reflashed for custom maps. Its robust bottom end can handle moderate forced induction.
Good for an SUV. In a Honda CR-V, expect real-world fuel economy of around 20-23 mpg (US) / 11.8-10.2 L/100km in combined driving. Highway figures can reach 27-29 mpg (US) / 8.7-8.1 L/100km. Its design prioritizes efficiency for a vehicle of its size and weight.
Yes. Like virtually all Honda engines of this period, the K24A8 is an interference engine. If the timing chain fails or jumps, the pistons will collide with the open valves, causing catastrophic engine damage. While the chain is designed to last, maintaining proper oil pressure is critical.
Honda recommends a 5W-20 synthetic or semi-synthetic oil meeting API SM or SN specifications. Keeping the oil clean and at the correct level is crucial for the proper operation of the VTC system and timing chain tensioner. Regular oil changes (every 5,000-10,000 km) are essential.
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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