Enginetech part number IM4478 is a direct-replacement intake valve for 2008-2015 Acura/Honda 2.4L applications. Key specifications: 36.00" head, 0.2165" stem, 4.2830" overall length, nitrided stem.
Important Notes
- Nitride-hardened stem surface resists wear and galling in high-temperature and high-load applications.
- Always verify head diameter, stem diameter, and overall valve length against the OE valve being replaced before installation. Valve dimensions vary across engine families - a visual match is not enough.
Specifications
| Part Number | IM4478 |
| Valve Type | Intake Valve |
| Head Diameter | 36.00" |
| Stem Diameter | 0.2165" (5.50mm nominal) |
| Valve Length | 4.2830" OAL |
| Stem Finish | Nitrided Stem |
| Number of Grooves | 1 |
| Weight | 1.50 lbs |
| OEM Cross-Refs | Acura: 14711R44A00, DNJ Rock: EV263, DNJ Rock: IV242, Honda: 14711R44A00, Safety: VX12-112, SBI: 13358 |
Vehicle Fitment
- 2009-2014 Acura 2.4L / 2354 DOHC L4 16V K24Z3
- 2013-2015 Acura 2.4L / 2354 DOHC L4 16V K24W7,K24V7,K24Z7
- 2008-2012 Honda 2.4L / 2354 DOHC L4 16V K24Z2,Z3
- 2012-2015 Honda 2.4L / 2354 DOHC L4 16V K24Y2
- 2010-2011 Honda 2.4L / 2354 DOHC L4 16V K24Z6
- 2012-2014 Honda 2.4L / 2354 DOHC L4 16V K24W7,K24Z7
Product Video
Watch the Enginetech intake valve overview: https://youtu.be/G487Dw8HtII
Watch the Enginetech intake valve overview: https://youtu.be/eLaQHop7rH8
Enginetech standard valves are stock-replacement engine valves produced from OE grade materials or better, engineered with the production engine rebuilder in mind. Face runout, stem finish, and stem diameter tolerances are held to some of the tightest standards in the internal engine parts industry, and every valve is inspected by on-site engineers against a documented quality plan before it leaves the plant. The line covers domestic, import, and common high-performance applications across a full range of head diameters, stem diameters, and overall lengths, with chrome-plated and nitride-hardened stem finishes available where the engine's operating conditions call for the upgrade. Always verify head diameter, stem diameter, valve length, groove count, and any oversize stem requirement against the original valve being replaced before installing, as multiple valve configurations can share the same vehicle nameplate.
WARNING: This product can expose you to chemicals including lead and nickel, which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
