Frequently Asked Questions

• How many miles are too much for a used engine?

  If it’s got more than 150,000 miles, that’s a gamble. Try to find one with less than 100,000 miles and proof it’s been taken care of. Always check compression and look at the oil before buying.

• Does a used engine come with a warranty?

  At Car Parts Store USA, used engines come with up to a 2-year warranty. Make sure you read the fine print so you know what’s actually covered.

• What should I replace before installing a used engine?

  At the very least, change the gaskets, timing belt or chain, spark plugs, water pump, and filters. Skipping the little stuff now can cost you big later.

• Is it worth buying a used transmission?

  If it’s been tested, shifts smooth, and comes with a warranty; go for it. It costs way less than a new one and can keep your car running strong for years.

• What signs show a used transmission is in good condition?

  Check the fluid; it should be clean, not dark or burnt. No metal bits either. Shifts should be smooth. If you can, ask for a test run or bench test to make sure it works right.

• What does OEM mean in auto parts?

  OEM in auto parts means Original Equipment Manufacturer parts made by the same company that built the original parts for your vehicle.

• Are OEM parts better than aftermarket?

  Yes, most of the time OEM is the safe bet. It fits right and works like the one that came with the car. Aftermarket components are unpredictable; it can be good or trash, you need to be careful.

• Can I return a used engine if it doesn’t fit?

  At Car Parts Store USA, you can return a part if you didn’t install it and it’s still like new. Just make sure inform within 30 days of getting it.

• What’s included when I buy a used engine?

  Most of the time, you’re getting the long block; that’s the engine block, heads, and what’s inside. Stuff like the alternator, AC compressor, or starter might be there, but don’t count on it.

• Can I install a used engine or transmission by myself?

  We recommend having a professional mechanic do the install. If you try to do it yourself and mess something up, the warranty might not cover it.

• How do I check compatibility for a used engine or transmission?

  Use your VIN to match the make, model, engine code and year. Also check if your car is AWD or FWD, it makes a difference. If you’re not totally sure, ask the seller before you buy.

• Will a used engine affect my car’s resale value?

  No, if you do it right way. Save all your receipts and show the mileage. A good running engine with proof can make the car worth more than one with engine problems.

• How do I know if a used transmission has been tested?

  Ask for proof. Some sellers show a dyno test or mark it as ‘bench-tested’. If they got nothing, you’re gambling.

• What fluids should I change after installing a used engine or transmission?

  Drain and refill the engine oil, coolant, transmission fluid, and power steering fluid. New fluids are cheap protection and can help you spot any leaks before they get worse.