By preventing lubricants from escaping, they protect key components of machinery from being damaged by leaks of various fluids. Everything from car engines to assembly machines use these oil seals to remain free from any harmful interactions that can cause serious and expensive damage to any of their critical parts.

Look at the end of the sump. If you cannot see clearly whether you need to remove the engine, consult a car service manual or dealer.

The Ultimate Guide to Oil Seals

Some gaskets are in two or three pieces dove-tailed together. Make sure the pieces join up properly.