Polyurethane – Friend or Foe of Car Owners? Why So Many Parts Are Called Defective

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Are Polyurethane Bushings Reliable? Addressing the Quality Debate

There's a lot of debate about polyurethane online. We get the same questions in our messages all the time: will it be too stiff, will it actually be good quality, and so on. We hear questions like this constantly, and our answer is always the same — polyurethane is a material, just like rubber. Rubber parts come in different quality tiers too. There are cheap parts that don't cost much, like many Chinese-made ones. But there are also higher-quality rubber parts that cost more. Polyurethane works exactly the same way: there's cheap polyurethane with no warranty behind it, where the quality tends to be lower, and there's high-grade polyurethane — the kind actually used in the automotive industry. If you're still weighing the two materials against each other, our full polyurethane vs. rubber bushings comparison breaks down the pros and cons of each.

Polyurethane Bushing Quality From Our Manufacturing Partners

The factories we partner with use genuinely high-quality polyurethane. Of course, any production process has some percentage of defects, caused by the raw material itself or other technical factors — that's normal for manufacturing in general. What matters is the warranty the manufacturer provides: it fully covers that defect rate, and the defect rate itself stays small to begin with. This is exactly why we only work with vetted suppliers — see our rating of the best polyurethane bushing manufacturers to see how we choose them.

Our Warranty on Polyurethane Parts

On top of that, the manufacturer's warranty — the one you get when you buy from our store — fully covers that risk. If you happen to receive a defective part, over the course of a year it will go through every season: winter with road chemicals, spring with mud and standing water, summer with extreme heat, and fall with high humidity. In other words, your part goes through the toughest quality stress test there is. For more on how weather, chemicals, and everyday wear affect polyurethane over time, see our guide on what polyurethane is afraid of.

Have an Issue? We're Here to Help

If a part fails during any of these periods, just reach out to us and we'll take care of it. We're always happy to help.