How to Buy a Used Car Engine and Avoid Getting Scammed – A Step-by-Step Guide

21.05.2025

4 minutes reading

How to Buy a Used Car Engine and Avoid Getting Scammed – A Step-by-Step Guide

Buying a used car engine is often the best solution for people who want to bring their car back to life without spending a fortune on a new engine. However, in order not to fall on a minefield and not to expose yourself to additional costs or problems, it is worth approaching this process with caution and the right knowledge. Below you will find a step-by-step guide on how to buy a used engine , what to look for and where to look for it.

Original used car engines - GlobalParts

Why should you consider buying a used engine?

Used car engines is often a cheaper alternative to new drive units or expensive engine repairs. At Global Parts you will find a wide selection of original, used engines from post-crash cars. All engines have undergone detailed quality control. Importantly, we offer used engines with a guarantee, which gives an additional sense of security when buying.

Step 1: Check engine compatibility with your car

The most important aspect when buying a used engine is its full compatibility with your car. You should pay attention to:

  • Engine code – this is a unique identifier that must match the one installed in your model.
  • Matching based on VIN number – At Global Parts, we check and match every engine to your car based on the VIN number.
  • Vehicle year – even small differences between years can mean differences in equipment, sensors or wiring harnesses.
  • Engine Type – For example, if you are looking for a BMW e90 engine , please make sure it is the correct variant, e.g. N55 engine or BMW e90 335i engine , that fits your model (e.g. BMW 335i, BMW e92 335i engine, BMW e60 engine).

Accurate fit is essential to avoid problems with installation and subsequent operation.

Step 2: Choose an engine with a warranty

Buying an engine without a warranty is a risk – in the event of a breakdown, you may be left with a costly repair. Therefore, choose suppliers who offer a warranty on used engines. Global Parts provides a 90-day warranty on the engines sold , which is a big plus and proves the quality of the products offered. The warranty is also a confirmation that the engine has passed the appropriate tests and is functional.

Step 3: Prepare for Engine Installation

Installing a used engine means not only replacing it, but also replacing the consumables that affect its service life. During installation, it is worth replacing:

  • Seals.
  • Oil filter.
  • Timing belt or timing chain.
  • Consumable items.

It's a small cost compared to the peace of mind that comes with knowing that your engine will be running smoothly and won't need to be disassembled again any time soon.

Step 4: Formalities after engine replacement

In Poland, replacing an engine with a unit with identical parameters does not require reporting to the transport department. However, in the case of installing an engine with different parameters, it is necessary to report this change and update the data in the registration certificate.

Where is the best place to buy a used car engine?

It is safest to buy engines from trusted companies that offer original used engines with a warranty, such as Global Parts . Avoid buying from private sellers without a warranty, as the risk of buying a faulty engine is then much greater.

Is it safe to buy a used engine?

Yes, provided you buy from a reliable supplier and check the engine thoroughly before purchase. It is also worth having a professional assessment by a mechanic who can assess the technical condition of the engine before installation. Used engines , especially those with a warranty, can be as reliable as new, and are often even more proven in practice.

What is better – buy a used engine or have yours overhauled?

The decision depends on the condition of your current engine and the cost of the overhaul. Overhauling an engine can be expensive and time-consuming, and the end result is not always guaranteed. When you buy a used engine with a warranty, you get a ready-to-install unit that can last for many years. It is worth comparing the prices and lead times of both options, but a used engine from a reliable source is often more cost-effective.

What is a low mileage engine?

A low mileage engine is a unit that has done relatively few kilometers, which usually means less wear and tear and a longer life. When buying a used engine, it is worth looking for those that have had the mileage appropriate to the age and type of car, and have been regularly serviced.

Engines from famous brands: BMW and Mercedes

Among the popular brands, BMW engines , especially such as the BMW e90 engine, BMW e60 engine , or M57 engine , are valued for their durability and performance. Also, Mercedes engines are considered solid and durable. However, the choice depends on the car model and individual needs. At Global Parts you will find original engines used for BMW 335d , BMW 335i , BMW e92 335i and Mercedes engines , which allows you to choose the unit perfectly for your car.

Why choose a used engine?

Buying a used engine is a great way to get your car back on track without spending too much money. The key to success is:

  • Precise matching of the engine to the car.
  • Checking the history and technical condition of the engine.
  • Choosing a supplier offering a warranty.
  • Professional installation and replacement of consumables.

Global Parts is a place where you will find a wide selection of original, used engines for various models, including popular BMW and Mercedes engines, with a guarantee and expert advice. Thanks to this, you can be sure that your used engine will serve you for a long time and without problems.

With this approach , buying a used engine will be simple and safe - you won't have to worry about "land mines" and your car will gain a new life!

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