Enginetech part number IM1012 is a direct-replacement intake valve for 2001-2016 Infiniti/Nissan/Suzuki 3.5L, 5.6L, 4.0L applications. Key specifications: 1.463" head, 0.2350" stem, 3.802" 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 | IM1012 |
| Valve Type | Intake Valve |
| Head Diameter | 1.463" |
| Stem Diameter | 0.2350" (6.00mm nominal) |
| Valve Length | 3.802" OAL |
| Stem Finish | Nitrided Stem |
| Number of Grooves | 1 |
| Weight | 1.50 lbs |
| OEM Cross-Refs | DNJ Rock: IV644, Safety: VN11-102, Topline: IVD41 |
Vehicle Fitment
- 2002-2006 Infiniti 3.5L / 3498 DOHC V6 24V VQ35DE
- 2007-2008 Infiniti 3.5L / 3498 DOHC V6 24V VQ35DE
- 2002-2006 Nissan 3.5L / 3498 DOHC V6 24V VQ35DE
- 2007-2008 Nissan 3.5L / 3498 DOHC V6 24V VQ35DE
- 2001-2008 Infiniti 3.5L / 3498 DOHC V6 24V VQ35DE, VQ35DD
- 2004-2010 Infiniti 5.6L / 5552 DOHC V8 32V VK56DE
- 2001-2008 Nissan 3.5L / 3498 DOHC V6 24V VQ35DE, VQ35DD
- 2009-2009 Nissan 3.5L / 3498 DOHC V6 24V VQ35DE, VQ35DD
- 2005-2016 Nissan 4.0L / 3954 DOHC V6 24V VQ40DE
- 2004-2013 Nissan 5.6L / 5552 DOHC V8 32V VK56DE
- 2012-2015 Nissan 5.6L / 5552 DOHC V8 32V VK56DE
- 2009-2012 Suzuki 4.0L / 3954 DOHC V6 24V VQ40DE
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.
