OEM vs Aftermarket reliability, what's the difference?

From what I've noticed Paccar loves to mark up their parts. You can roll the dice on the $200 doser, see what happens.

 

Who do you think makes the parts for Cummins?

 

It is questionable if Bosch even makes that part. The amount of relabeled Chinese crap is out of control.

 

I myself pay OEM prices. Especially with any emissions parts. Others will differ. I at least know I have a peace of mind that I won’t be gambling on aftermarket parts.

 

I always bought OEM sensors when it came to emission stuff mostly because my truck went to the local Peterbilt shop for work and most of the time the computer has to be told that the sensor was replaced.

If I had the software myself I would entertain an aftermarket sensor if it came from a known seller and the price was right. No way I’d chance a knockoff from Amazon or eBay.

 

I have not had the greatest luck in general with aftermarket parts. I go straight to the dealer most cases now. At least it's not a huge PITA to try and get a replacement part if it's bad out of the box.

 

Oem has always been more expensive then aftermarket.

Aftermarket. For some parts. Are refurbished.

Last century aftermarket was okay to use. These days. You're just wasting your money.

A perfect example is cars. No one wants to spend money on oem cats and o2 sensors. They buy aftermarket and the engine light never goes off. That money you saved was a complete waste of money.