First, you can
find a factory OEM part by either going through a dealer or contacting
the manufacturer directly. Factory parts are built by the OEM
manufacturer to the exact same specifications as the existing parts.
New OEM components are generally the most expensive option but often
yield the best fit, durability and overall quality. If you own your
vehicle and are thinking of reselling, documenting repairs using
factory parts can increase the resale value of the vehicle. Second,
you can find a new aftermarket part from a variety of parts dealers
online and at shops around the country. Aftermarket parts are often
exact replicas of OEM parts but are built by companies not associated
with the primary auto manufacturer. While aftermarket pieces are less
expensive than their OEM counterparts, they also may suffer in terms of
quality, fit and finish. Aftermarket parts are great to get a car back
up to speed if the budget is an issue and fit/quality do not matter.
However, some aftermarket companies produce pieces that are of
exceptional quality. Third, you can find a used factory (or maybe even a used aftermarket)
part at a salvage yard or from a private seller. Good used factory
parts are a great way to save money and get an OEM specified piece at
the same time. Obviously, used parts are subject to wear and are highly
variable in their quality and usability.
Researching parts
To determine the best method of
replacing a part, check with you dealer, owners of similar vehicles and
on the Internet to determine what option makes sense. You know the new
OEM part will work, so read online testimonials to see if aftermarket
replacements are worth the cost. You can also gain insight that's
helpful in a used search, learning the common defects/attributes of a
part before buying it yourself.
Locating parts
Many suppliers offer both OEM and
aftermarket parts for a broad range of vehicles. Some specialty parts
may not be produced in the aftermarket if demand does not warrant
investment. Tracking down these obscure pieces may require consulting a
parts specialist. Some dealers have caches of unused factory parts,
often called New Old Stock (NOS) or New Old Replacement Stock (NORS).
These command high prices especially when out of production.
Add-on accessories
Like replacement parts, some add-on
accessories are factory authorized while others are produced in the
aftermarket. Depending on the popularity of a vehicle, a variety of
special components exist to modify it. Engine enhancements, body kits,
interior pieces, electronics, exhaust systems, wheels and tires are
among the many elements that contribute to customization.