In the Electrical industry, there is a term called "Core Charge" or "Core Deposit". This simple word causes headaches for people who have never heard of it before and many times you will get upset to find out that you have to pay more for an Electrical part then its quoted price. It is similar to a bottle deposit. Well here is the facts about core costs:
The need for a "Core Charge" or "Core Deposit" arose from recycling & re-manufacturing parts and or Enviornmently disposable. Re-manufacturing an auto part is nothing new, has been around since the automobile was invented. A re-manufactured part by a reputable auto part rebuilder, usually saves you lots of money and you also help the environment from not actually throwing this part in a landfill. If you have ever purchased a new battery for your car, truck, or boat, you have probably come across this core charge as batteries are recycled and resold and your old battery has a value. This old battery is called a core and the value is the money that your old battery is worth to the re-builder. If you ever purchase a new or reman Alternator, Starter Motor, AC and DC Motor, power steering pump or rack and pinion, You had to turn in your old one so it could be re-manufactured and resold to someone else. Numerous items are still re-manufactured today and for good reason.