Replacing a bumper can be confusing. There are sensors, brackets, fog lights and paint to think about. The good news is that buying a used genuine bumper is often the smartest and cheapest way to go.
The key is the OEM number. OEM stands for Original Equipment Manufacturer. That is the exact part number the car maker used when your car was built. When you shop by this number, you know the part is made for your car.
In this guide, we explain how to find the OEM number, what extra parts you need, how sensors and brackets work, and what to expect with paint. You will also learn how to avoid common mistakes and get a bumper that fits right the first time.
Why Buy a Used Bumper?
A new bumper from a dealer can cost a lot of money. Even a basic plastic cover may cost several hundred pounds or more. Add sensors, brackets and paint, and the bill grows fast.
A used genuine bumper costs much less. It is the same part the factory fitted. You get the same fit and the same quality, but for a fraction of the price. Many independent garages and DIY mechanics choose used OEM parts for this reason.
If you want to understand why used genuine parts are safe, read our guide about Auto128. It explains how professional dismantlers test and grade parts before resale.
The Savings Add Up
Used bumpers often cost half the price of new ones. Sometimes the saving is even bigger. That leaves more budget for paint and fitting.
You also help the planet. Reusing a part means less waste and less energy used to make a new one. That is good for everyone.
What to Watch For
Not every used bumper is a good buy. Look for cracks, deep scratches or missing clips. A good seller will show clear photos and list any damage.
Ask if the bumper includes the grilles, fog lights and sensor holes. Some sellers strip these off to sell separately. Knowing what is included saves surprises later.
What Is an OEM Number and Why It Matters
Every genuine car part has an OEM number. It is a code made of letters and numbers, like 4L0807284B. This code tells you exactly what the part is and which cars it fits.
Car makers use these codes across many models. So the same bumper might fit an Audi Q7 from several model years. The OEM number is the fastest way to check.
If you are not sure which number you need, you can browse parts by brand on Auto128. Pick your make and model, then look for the bumper section.
Where to Find Your OEM Number
You can find the number in a few places. Check the sticker on the old bumper. Look in the owner's manual or a parts catalogue. A dealer can also tell you if you give them your VIN.
VIN stands for Vehicle Identification Number. It is the long code on your windscreen or door frame. It tells the maker exactly how your car was built.
Why the Number Beats Guesswork
Two bumpers may look the same but fit differently. Sport models often have different bumpers than standard ones. Sensor holes and tow hook covers can also vary.
By using the OEM number, you skip the guesswork. The part is matched to your car, not just to its shape.
Bumpers and Their Extra Parts
A bumper is more than one piece. It usually includes a plastic cover, a metal or plastic support bar, and several brackets. Some also have grilles, fog lights and sensors.
When you buy used, check which of these parts are included. Sometimes you need to buy them separately.
Mounting Brackets
Brackets hold the bumper to the car body. They are small but important. A broken bracket can make the bumper rattle or sit crooked.
If you need a bracket, search by its own OEM number. For example, the mounting bracket, bumper, OEM 4l0807284b page lists every vehicle that code fits. That way you know it will bolt on correctly.
Ventilation Grilles
Some bumpers have grilles that let air reach the radiator or brakes. These grilles are often model specific. A missing grille can leave an ugly hole and affect cooling.
You can find the right one by code. The ventilation grille, bumper, OEM 4l0853651g page shows fitment for that exact part.
Trailer Hitch Covers
If your car has a tow bar, the bumper may have a small cover for the hitch area. These covers are easy to lose. They are also easy to find by number.
See the bumper cover, trailer hitch, OEM 4l0807819e page to check which models use that cover. It is a small part, but it keeps the rear looking clean.
Sensors: Parking and Safety Systems
Modern bumpers often have parking sensors. These are small round devices that beep when you get close to something. Some cars also have radar or cameras for safety systems.
If your car has these, the bumper must have the correct holes and mounts. A bumper from a car without sensors may not work, even if it looks the same.
Parking Sensors
Parking sensors usually clip into the bumper from behind. The bumper has small holes with holders. If the holes are damaged, the sensor may not sit right.
Check that the used bumper has all its sensor holes and holders. If not, you may need to transfer them from your old bumper.
Radar and Cameras
Some cars have radar behind the bumper for automatic braking. Others have cameras for reversing. These parts are often mounted on brackets inside the bumper.
If your car has these systems, make sure the replacement bumper has the correct mounts. Otherwise the system may not work, and you may see warning lights on the dashboard.
Testing Sensors
Used sensors may or may not work. Ask the seller if they were tested. A good dismantler will check them before sale.
If you buy a bumper with sensors, test them after fitting. If one fails, you can often swap in your old one. Just make sure the part numbers match.
Paint: Matching and Finishing
Most used bumpers come in a colour, but it may not match your car. Paint fades over time, so even the same colour code can look different.
You have two main choices. You can fit the bumper as is, if the colour is close enough. Or you can have it repainted to match your car.
Colour Codes
Every car has a paint code. It is usually on a sticker in the door frame or engine bay. Give this code to your paint shop. They can mix paint that matches your car's current shade.
Repainting a Used Bumper
Repainting a bumper is normal. The shop will sand it, prime it and spray it. Then they add a clear coat to protect the paint.
Good prep is key. A bumper that is cleaned and primed well will look like new. Ask the shop about their warranty on paintwork.
Can You Paint It Yourself?
Some DIY owners paint bumpers at home with spray cans. It can work for small areas. But a full bumper is hard to get smooth without a spray booth.
If you want a factory look, a professional shop is usually best. The cost is still lower than buying a new bumper from a dealer.
Fitment: Will It Really Fit?
Fitment means the part fits your exact car. Even with the right OEM number, there can be small differences between model years or trim levels.
Always check the fitment list before you buy. A good seller will list the models and years that the part fits.
Using the VIN
The VIN is the best way to confirm fitment. Give it to the seller or your garage. They can check that the bumper matches your car's build.
Some online tools let you enter the VIN and see the original part numbers. That takes the risk out of buying.
Trim and Model Differences
Sport bumpers are often deeper and have different grilles. Base models may have simpler covers. Tow bar cutouts can also differ.
If you are unsure, ask. It is better to ask a question than to buy the wrong part.
How Auto128 Helps You Buy
Auto128 connects you with professional dismantlers across Europe. You can search by OEM code and see which cars the part fits. Then you order and we handle the rest.
Our how Auto128 works page explains each step. It covers sourcing, export paperwork, customs and tracked delivery to your door.
If you cannot find a part, you can request a part. Tell us the OEM code and your country. We will look for it and send you a quote.
Checking Fitment Before You Buy
Every part page on Auto128 shows a fitment list. It tells you which makes, models and years the part fits. This helps you buy with confidence.
Shipping and Customs
We ship worldwide. We pack bumpers carefully to prevent damage in transit. You get a tracking number so you can follow your parcel.
Customs can be confusing, but we handle the paperwork. You just pay any local taxes or duties when the parcel arrives. For more details, see our frequently asked questions.
Common Mistakes to Avoid
Buying a bumper without checking the number is the biggest mistake. Another is forgetting about sensors or brackets.
Here are simple tips to get it right:
- Always confirm the OEM number before buying.
- Check if sensors, grilles and brackets are included.
- Ask for photos of any damage.
- Confirm fitment with your VIN if possible.
- Budget for paint and fitting.
If you follow these steps, you will avoid most problems. A used genuine bumper can save you a lot of money and still look great.
OEM vs Aftermarket
Aftermarket bumpers are made by other companies. They can be cheaper, but fit and quality vary. Some need extra work to line up with the body.
Genuine OEM bumpers are made to the car maker's spec. They bolt on with fewer issues. For many owners, the small extra cost is worth it. You can learn more about car parts standards from ISO, the International Organization for Standardization.
Inspection Tips
When your bumper arrives, check it before fitting. Look for cracks, scuffs or missing clips. If something is wrong, contact the seller right away.
Test fit the bumper before painting if you can. That way you can return it if it does not fit. Once it is painted, returns are harder.
Keeping Your Old Bumper
Do not throw away your old bumper right away. You may need to swap over sensors, brackets or grilles. Keep it until the new one is fitted and working.
You can also sell the old bumper for parts. Even a damaged bumper may have useful clips or sensors.
Final Thoughts
Buying a used bumper by OEM number is a smart way to repair your car. You get a genuine part, a good fit and a lower price.
Just remember the extras: sensors, brackets, grilles and paint. Check the fitment list carefully. Ask questions if you are unsure.
With a little care, your car will look right again without breaking the bank. And you will know the part was made for your car, not just something close.
Frequently asked questions
How do I find the OEM number for my bumper?
Check the sticker on the back of your old bumper. You can also ask a dealer using your VIN, or look in a parts catalogue. The VIN is the long code on your windscreen or door frame.
Will a used bumper from another car fit mine?
Only if the OEM number matches and the fitment list includes your model, year and trim. Two bumpers can look the same but have different sensor holes or brackets.
Do I need to repaint a used bumper?
Not always. If the colour is close and you are happy with minor differences, you can fit it as is. For a perfect match, a paint shop can repaint it using your car's paint code.
What if the bumper arrives damaged?
Contact the seller or Auto128 support straight away. Take photos of the packaging and the damage. Most sellers will help resolve the issue quickly.
Can I transfer my old sensors and brackets to the new bumper?
Yes, often you can. If the replacement bumper has the same mounting points, your old sensors and brackets will fit. Just check they are not damaged before reuse.

