An engine is a vitally important mechanical component of any vehicle. If you purchase a replacement engine for your vehicle, you need to make sure you choose the best possible piece of equipment for your vehicle to avoid mechanical problems in the near future. The following are six mistakes to avoid when you buy a used engine to get the most out of your investment.

1. Getting the wrong engine type

It's important to get together all the relevant information about your particular vehicle model and trim before you purchase an engine. There are many different engine types out there. Information that's important includes the engine code of your vehicle. Also, you should have your VIN and vehicle production date with you to choose the right engine for your vehicle.

2. Being unfamiliar with the service history of the engine in question

How well an engine is maintained is highly important. If you replace an engine with an engine that hasn't been well serviced through the years, you may encounter repeat engine problems much sooner than you predicted. Make sure you look into the service history of the vehicle you're taking an engine off of before you buy a used replacement engine. 

3. Shopping from only one supplier

An engine is a big investment to make in your vehicle. As such, you shouldn't purchase an engine before you've shopped around. There are numerous suppliers and scrap yards out there supplying used engine. Make sure you check with various sources before you commit to purchasing a used engine.

4. Buying a high-mileage engine

One of the most important statistics to check up on when purchasing a used engine is the mileage of the engine. An engine with high mileage cannot be relied on to last for a long time. Choose a used engine with lower mileage if you want your replacement engine to last as long as possible.

5. Failing to review warranty information

A replacement engine that can be relied on to last a while should come along with a good warranty. You should shop around for a warranty if you want to make sure you can count on your replacement engine.

6. Not knowing which engine components to inspect

Important engine components to inspect when you're buying a replacement unit include cylinder sleeves, pistons, valves, spark plugs, connecting rods, and piston rings. Make sure you have a thorough inspection of all vital components performed of any replacement engine you're considering before you make a purchase. For more information, contact a company like Fresno Auto & Truck Recycling.