Engine Valve Cover Set with Bolts & Oil Cap & Gaskets & Spark Plug Tube Seals & PCV Valve Compatible with 2002-2007 Nissan Altima Maxima Murano Quest Infiniti I35 VQ35DE V6 3.5L Part# 264-984 265-985

These are great beyond compareTotal, absolute breeze to install and the fit is 100% spot on

5 star Quality, fit, durability, no leakage, ready to install. This could not have been a better or more economical solution for my leaks.

Everything was as expected and fit perfectly

So far so good

I purchased this item in January of 2025 and so far it holding up on my 2006 nissan murano S. Fit perfectly there a no leakage, so I'm happy.

Excellent,good quality ,happy with it

After 4 months I now I have oil in the spark plug tubes in 2 out of 3 of the front ones, haven't checked the rear ones yet cause I'm still trying to fix the front ones but I would of thought that this wouldn't happen again or this soon. Pretty sure it's because there's not much to their version of a seal around it and unlike most other vehicles that you can replace the seal these ones you can't they are "built in" but it didn't even look like there was a seal it just looks like the plastic so I'm guessing these either weren't made right or they just don't care and put out cheap products that aren't 100% going to work. I'm so pissed I have to do all this again when it was a royal pain in the a** to do the first time. Not sure where I'll be getting replacement from but won't be these again since i doubt they'll replace it since it's been 4 months now.

Unless you know what your doing, You can and will blow a motor using these valve covers.First, as noted earlier with a previous review and pictures, this WILL break your engines head on the rear or B side of the motor. There is an area that must be ground down or a very small piece can break off forever ruining the head and creating a leak of any severity.Next, the screws on these covers. Understandably, the Plug Tubes seals need to be held in place. The screws as mentioned by so many others is a hazard. I used red locktite to ensure they don't back out.The plug tube seals, I used permatex on the valve cover , under the plastics, to add an extra layer of protection ensuring they stayed sealed permanently.Lastly, the finish has no primer underneath. This may be a good indication that the paint may not withstand higher temperatures. Either way, it chips off easily.Update: After some time using these, this far (a few months), there have been no issues. I've had the engine in multiple high rev applications in which everything has stayed intact. I have resolved pretty much all the oil leaks on the engine with these covers. Just make the modifications as noted and they'll be great.