Aftermarket vs. OEM

Posted by eatdust | Aftermarket | Friday 17 October 2008 3:15 pm

One big question has always been “When do I use aftermarket parts and when should I use OEM?” There are several guidelines or “rules of thumb” when trying to answer this question. first, let’s look at repairing your car as opposed to modifying your car..

When you are maintaining your car, the after market is perfect for “normal maintenance parts such as belts, hoses, filters, spark plug, and fluids. These parts are typically less expensive than OEM parts and are equal to the OEM in quality. Quality parts can be found at any of the national brand outlets as well as those parts stores affiliated with NAPA.

When it comes to repairing your car, the issue is less clearly defined. As a general rule,
I would OEM (”factory”) parts for the “internals” of engines and transmissions. This way you can be sure of proper fitment and compatibility with the drive train.  The one area where I will look to the aftermarket are those “replaceable” items such as starter motors, clutches, pressure plates and throwout bearings. These are also available from aftermarket suppliers with equal quality and (usually) lower cost. In fact, starters, alternators, etc. are usually “rebuilt” OEM units that are far less expensive than the new factory part.

Next we’ll talk about modifying your car. .. that will come in the next blog.

See you later and tell me what you think !!

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