Melling oil pump bought second hand
Take it apart and look at it inside. The damage that shows is just superficial, and by itself isn't too bad, but if it's farkled inside, like if it's been forced heavily to one side or something, that's a deal breaker.
Someone actually went through the trouble of resealing the packageing with a used pump from a blown up motor and returning it... Didn't look close enough when he received it thinking it was a legit sealed new product. When he went to install it a few weeks later he noticed it had been tampered with...










