Retrofit vs OEM vs Aftermarket? I’m confused

Just for information.

Just because it is an aftermarket part doesn't mean it was made by a different manufacturer.

I worked for a company that made fuel injectors for Many Automobile Manufacturers. We also produced aftermarket injectors for these very same vehicles. The only difference was the serial numbers and part numbers etched into the injector bodies... Exact same parts and specifications as the OEM.

This may or may not apply to headlight housings....

 

Mosty correct, but I might add some details.

OE: Original equipment that actually came with your vehicle. Most vehicle manufacturers do not make all of the part they install on their vehicles though. Instead, they rely on a network of suppliers located around the world to make parts to their specifications. Toyota does own or have a stake in many parts suppliers that they utilize. Desnso is a great example. Generally speaking, OE parts can only be purchased at a dealership, are more costly than other alternatives, but offer the longest life and highest quality.

OEM: Similar to OE in that they come from the same manufacturers as above, but may not meet the exact same specifications as OE. Generally, somewhat less expensive, but generally quite high quality. Some people lump OE and OEM into the same category, but in reality, there is a difference. Also, there are not always OEM options available.

Aftermarket: Designed and manufactured by third party companies generally for collision repair, replacement or customization purposes. Lots of this stuff comes from China and is of questionable quality at best. Generally, much less expensive than OE or OEM. May not fit or function as well right out of the box and almost never lasts nearly as long as OE or OEM.

Retrofit: As already mentioned, utilizes an OE, OEM or aftermarket housing and OE, OEM or aftermarket guts to create a finished product. Quality is all over the map due to the wide variety of parts and manufacturing processes used. Some are pretty decent while others are downright awful.

What is best for you depends on what you're looking for. If you want a well designed and engineered light that lasts a long time, OE is the only way to fly. If you're just looking for the cheapest replacement light and don't worry about anything but purchase price, aftermarket is your best choice. Retrofit can provide decent lighting, but see my comments above on possible pitfalls. If you just want something that looks cool, you're on your own.

 

thank you @Too Stroked thats fantastic info.
I had no idea about OE vs OEM.

this is a truck I’ve had for many years and will continue to have. 200k miles and still going strong. Only problem I’ve ever had was the ac resistor.
As far as your recommendations I’m looking for best performance. With that it’s sounds by more and more that OE/OEM is best path forward. if anything it seems the safest option for quality and performance.