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 markets, the K24A8 was engineered for responsive daily driving with a focus on smooth power delivery and towing capability. Emissions compliance for its era was managed through its PGM-FI fuel injection and OBD-II diagnostics, meeting US Federal Tier 2 Bin 5 standards upon launch.
One documented characteristic is its use of a unique, high-flow intake manifold and revised exhaust cam profile compared to the K24A4, confirmed in Honda's internal powertrain documentation (PT‑2008). This revision improved low-RPM torque and emissions performance. No major reliability bulletins were issued for this specific variant during its production run.
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 K24A8's i-VTEC system provides strong, accessible torque ideal for an SUV, with smooth power delivery across the rev range. Its timing chain is designed for longevity but requires clean oil for the tensioner and VTEC system. Using the specified 5W-20 API SM/SN oil is critical for optimal lubrication and fuel economy. The engine runs best on regular unleaded fuel and is known for its quiet, refined character under load.
Oil Specs: Requires API SM/SN grade oil (Honda Owner's Manual CR-V RE). Viscosity 5W-20 recommended for optimal fuel economy and VTEC operation.
Emissions: Certified to US Federal Tier 2 Bin 5 standards for 2008-2012 model years (EPA Certification Docs).
Power Ratings: Measured under SAE J1349 standards. Output is fixed by ECU mapping and mechanical design (Honda PT-2008).
Honda Technical Information System (TIS) / Service Manuals: CR-V RE
Honda Powertrain Specifications Document (PT-2008)
US Environmental Protection Agency (EPA) Certification Database
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.
Locate the engine code stamped on the front of the engine block, near the exhaust manifold (Honda Service Manual CR-V RE). The engine can be visually identified by its DOHC design, silver valve cover, and the presence of i-VTEC solenoids. It is distinct from the K24A4 (used in Accord) by its unique intake manifold design and specific ECU mapping. Service parts for the intake and valvetrain may differ from other K24 variants.
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.
Find answers to most commonly asked questions about HONDA K24A8.
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