MITZONE Engine Valve Cover Set Compatible with VQ35DE 3.5L - Ready

In this review of the MITZONE Engine Valve Cover Set the bottom line is simple: this kit is for owners of VQ35DE 3.5L Nissan and Infiniti engines who want a ready-to-install replacement that includes all the small parts often missed in separate purchases. The most compelling reason to buy is the complete package approach - both valve covers come with pre-installed gaskets, spark plug tube seals and a pre-installed PCV, plus bolts and an oil filler cap, which reduces installation time and the chance of missing pieces.

Key Features

• Complete kit: Includes driver and passenger valve covers, gaskets, bolts, oil cap and hose so installers get every part they need in one purchase.
• Pre-installed seals: Spark plug tube seals and PCV valve come pre-installed to make the install faster and reduce handling errors during reassembly.
• High sealing performance: Pre-installed gaskets aim to prevent oil leaks and protect the engine from seepage over time.
• Direct fit for VQ35DE: Designed to match VQ35DE V6 3.5L DOHC engines in listed model years, which simplifies fitment for those vehicles.
• Includes hardware: New bolts and hose are included so there is no need to reuse old fasteners that might be corroded or worn.

Who It's For

This valve cover set is best for DIY mechanics and professional technicians working on 2003-2008 Nissan and Infiniti models with the VQ35DE 3.5L engine who want a convenient, mostly drop-in replacement. It is particularly useful when replacing aging valve covers that are leaking or when doing a tune-up that involves spark plug tube seal replacement.

Those who need OE factory branded parts for warranty or dealership-level restoration may want to compare OEM sources. Also, buyers who prioritize heavy-duty aftermarket durability over a cost-effective replacement should consider more expensive performance-oriented covers.

Pros & Cons

Pros

• Comes as a full kit so installation is straightforward with fewer trips to buy missing parts.
• Pre-installed gaskets and spark plug tube seals reduce installation time and the risk of misalignment.
• Fits VQ35DE 3.5L engines for the listed model years, offering good compatibility for those cars.
• Includes oil cap, bolts and hose for a complete refresh of the top end components.

Cons

• Customer feedback on material sturdiness and quality is mixed, so finish and longevity may vary.
• Some users reported installation hiccups, indicating fit or hardware differences can occur and careful trial fitting is advised.

Specifications

Brand	MITZONE
Engine compatibility	VQ35DE V6 3.5L DOHC
Included parts	Driver & passenger valve covers, gaskets, bolts, oil cap, spark plug tube seals, PCV, hose
Pre-installed items	Gaskets, spark plug tube seals, PCV valve
Compatible vehicles	2003-2006 Nissan 350Z; 2003-2008 Infiniti FX35; 2003-2007 Infiniti G35; 2006-2008 Infiniti M35
OE part references	13264AM600, 13264AM610 and related gasket numbers

Our Verdict

The MITZONE valve cover set is a practical, value-focused choice for owners of the VQ35DE 3.5L engines who want a largely plug-and-play replacement that includes all necessary hardware and pre-installed seals. It is good value when fitment matches the listed models, but buyers should accept that finish quality may vary and inspect parts at installation to ensure a proper seal.

Frequently Asked Questions

Does this kit include the PCV valve?
Yes, the PCV valve is pre-installed in the valve cover, and a new hose is included.

Will this fit my 2005 350Z with a VQ35DE engine?
Yes, this set is specified to be compatible with 2003-2006 Nissan 350Z models equipped with the VQ35DE 3.5L engine.

Are the gaskets and spark plug tube seals included?
Yes, gaskets and spark plug tube seals are included and come pre-installed to simplify the install.