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aftermarket parts vary in regards to quality, some are pure junk, some are as good as OEM parts, and others are superior to OEM. you get what you pay for. be careful when buying OEM labeled parts, sometimes you get reboxed aftermarket junk when you go cheap.
as to whether to replace two or four, i say replace all four. you are there anyway, and it doesnt make sense to replace just two and then a couple of months later replace the other two. if you replace them all now, you theoretically dont have to worry about any of them breaking anytime soon.
I thought I'd give an update. I installed two aftermarket brands - Becky/Arnley and Westar. Neither had rubber that was anything like OEM. It was quite a bit firmer and transmitted a lot more vibration. Returned them and bought OEM (Nissan, from Dealer Direct Parts). They gave me the OEM ride quality right away. At least for Nissan, aftermarket motor mounts are not the same quality and don't give the same smooth ride as OEM.
As far as replacing two or all four, I ended up replacing all four. After fifteen years, one mount was destroyed (why I started on replacing), one was mostly destroyed, one had two small cracks in the rubber, and one was fine. But none had the same spring as the new OEM. Based on my experience, if you can afford it and plan to keep the car, replace all four. Fifteen years was the life of these mounts. Nearly all engine vibration in passenger compartment is now gone, as well as shift shock.
Thanks for the update. I have never heard of Westar, but I'm surprised the Beck/Arnley part disappointed. Usually they have good parts.
In general there are a lot of parts on Japanese cars that you either get the OEM part from a dealer or you deal with something not as good. Contrast European cars, where you can get a brake rotor from BMW or you can buy essentially the same rotor as an ATE branded part, and it's essentially just as good as OEM.
Good on ya, hope you get many more years and miles of satisfactory service from your Nissan.
I have a Nissan Altima 2005 and I just purchased 4 motor mounts from eBay brand name SUPER AUTO ARE THEY GOOD MY CAR IS IN NEED OF ALL MIUNTS ??? Help me please
Something else to consider, delivery service. Today's package delivery merely toss your package near the front door where thieves can pick it up before you get home. Consider going through a local or chain autoparts store for your order. This will give you a physical location to hold your order until ready to pick up and return if part isn't correct.
Searching the web, I can't find anyone who has good things to say about aftermarket motor mounts. Has anyone had aftermarket mounts last a long time?
My OEM have lasted 15 years, and I anticipate driving my car at least 5 more years. Aftermarket I can do the whole set for $110. OEM is $260. What would you guys do, aftermarket or OEM?
Also, is there any reason to replace all the mounts - four - if only two are bad? I figure the remaining mounts are probably on their way out, since two of the four are toast. Any advantage to doing all at once, rather that waiting until they die?
98 Nissan Altima
I've used aftermarket mounts on a whole bunch of cars over the years, and I have also bought a lot of stuff from Rock Auto, 99% of the time with good results. You might want to check this out:
I use only OEM parts on my cars, period. I've tried aftermarket parts before (brakes, mounts, etc) and always disappointed in the overall feel of the car. I liked the car enough to buy it once, and like it to remain that way. OEM is that way for me.
That being said, I understand parts at the dealership are insanely expensive. That's why I buy online via parts.com. I've bought brakes, mounts, plugs, etc. for years from them. All genuine OEM parts that come from actual dealerships around the country. I'll give you an example.
Recently replaced all pads/rotors on my 3 cars. A 2014 Mercedes E350, a 2013 Toyota Highlander, and a 2015 VW GTI. On average per wheel to change them myself with genuine parts - less than $100 or $400 per car. This is rotors, pads, pad brackets, everything needed, pure genuine OEM parts. If I had bought the same parts from the dealership, it'd of been 2x's the cost... If I had the dealership do the job for me....$2,200. Me? $395. Exact same parts...
Can't do the work yourself? Totally get it. Buy the part yourself and take it to a mechanic to install it for you. Motor mounts are not hard to replace on most cars in general.
I've used after market mounts from Repco on my hj75. Have replaced them every 12 months, every time i go off road i break a mount.
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