MITZONE Valve Cover Kit for Nissan QR25DE 2.5L (2007–2013 Altima/Sentra) Complete Gasket, PCV & Hardware

MITZONE complete valve cover kit replaces worn covers on Nissan QR25DE engines for a leak-resistant, ready-to-install solution.

This replacement valve cover kit is engineered to fit Nissan vehicles using the QR25DE 2.5L engine, including Altima, Sentra SE-R, Rogue and Rogue Select model years listed. The assembly arrives prepped with essential sealing components and hardware so you can swap the old cover without sourcing extra parts. Materials and sealing surfaces are selected to restore proper engine bay protection and reduce oil seepage around the cam cover area.

What does the kit include and why does it matter?

The MITZONE kit is supplied as a one-stop package: the valve cover, oil filler cap, gasket, spark plug tube seals, bolts and a PCV/tube assembly are all included. Having all components matched to the cover ensures correct compression of gaskets and reliable torque on fasteners, which helps avoid common post-install leaks.

• New valve cover molded to OE contours for exact fit
• Engine valve cover gasket pre-cut to match sealing surfaces
• Spark plug tube seals and bolts included to simplify installation
• Oil filler cap and PCV/tube provided for a complete replacement

How does this fit my Nissan model and engine?

This cover matches the QR25DE 2.5L inline-4 layout used across several Nissan models and years. Confirm compatibility by checking your vehicle year and the OE part numbers 13264-JA00A or 13270-JA00A against your existing cover. Fitment coverage follows the manufacturer’s common applications for these part numbers.

• Compatible with 2007–2013 Nissan Altima 2.5L and 2007–2011 Altima Hybrid
• Fits 2007–2012 Nissan Sentra SE-R 2.5L
• Also compatible with 2008–2013 Nissan Rogue and 2014–2015 Rogue Select (2.5L)
• Matches OE part numbers 13264-JA00A and 13270-JA00A for reference

How does installing a new valve cover improve engine performance?

Replacing a damaged or leaking valve cover restores proper sealing of the top end, preventing oil loss and contamination of ignition components. That keeps spark plug wells dry and PCV routing performing as intended, which helps maintain consistent engine operation and avoids misfire-prone conditions related to oil fouling.

• Stops oil seepage onto ignition coils and plugs
• Restores correct PCV ventilation path and pressure control
• Prevents dirt and moisture intrusion into the valve train area

What should I expect during replacement and installation tips?

Installation is straightforward for anyone familiar with basic engine work: remove the old cover, clean mating surfaces, install the new gasket and torque bolts to manufacturer specs. Because the kit includes all required seals and fasteners, you avoid delays searching for missing parts mid-job.

• Clean old gasket residue for proper sealing
• Tighten bolts in the recommended sequence and torque
• Replace spark plug tube seals and reinstall coils carefully
• Verify oil cap and PCV tube seating before startup

Who is this for: This MITZONE valve cover kit is aimed at DIY mechanics, independent shops and owners of Nissan vehicles with QR25DE engines who need a complete, direct-fit replacement. It suits anyone replacing a cracked cover, fixing persistent top-end oil leaks, or performing a preventative refresh during tune-ups and timing-related service. If you want a single-purchase solution that includes the cap, gasket, seals and hardware matched to your engine, this kit is built for that purpose.