Help & Contact

+33 1 84 802 890

Krosfou offers Diesel Particulate Filters (DPF)and catalytic converters (auto catalysts) NEW, High Performance, guaranteed for 3 years, manufacture in Europe, rust-free, that comply with the technical control standards, the manufacturer's standards, and the European regulations.

More info about the products and our factory (click HERE).

To place an order, nothing could be easier:
- select your part by indicating THE REFERENCE you are looking for, otherwise search by vehicle model,
- add your part to the cart, click on order and enter the requested information (for new customer & delivery address), and click on save,
- choose your delivery method, your payment method, and make your payment,
- you will receive an e-mail at each step.

If you need help, contact us at +33 1 84 802 890 from Monday to Saturday from 8am to 6pm, or click HERE to be called back immediately, to start a conversation on Messenger / WhatsApp, or request a quote.

1. Express 24h

Receive your part the next day throughout the European Union with UPS, for all orders confirmed before noon.

2. Standard 3-4 days (FREE)

Receive your part within 3-4 days with DPD throughout the European Union, for all orders confirmed before noon.

For more information click HERE : DELIVERY

Our parts are Express delivered with UPS within 4 days in South Africa and within 2-5 days anywhere in the world.

Price displayed VAT FREE for outside the European Union and the rest of the world: once your account is created and your delivery address is introduced, you are exempt from VAT and the prices are displayed with a 20% discount. You will then have to pay any sea duties, local taxes, etc. if they apply, on the receipt of your order.

For more info click HERE: DELIVERY, or visit your product page.

It is very easy ! Call us at +33 1 84 802 890 or send an email to [email protected] indicating the REFERENCE or the VIN/chassis number of the vehicle together with the REGistration number.

You can also make your search in 2 ways:
1. Choose the brand, model and motorization of the vehicle, then click on OK.
2. If you know the reference of the part, enter it in "Reference OE, ..." then click on OK.

With your Company Registration number, create an account on our web site HERE, then contact us by phone at +33 1 84 802 890 so our special consultant dedicated to professionals of the car part (wholesaler, retailer or garage) switchovers your account into a PRO account, you can then benefit from the numerous Krosfou advantages.
For more information click here: The PRO's corner.

Create your account :
- Click on "SIGN IN" at the top right of your screen.
- Fill in your email address in the section "CREATE AN ACCOUNT" and click on CREATE AN ACCOUNT.
- Complete the fields with your necessary information.

Krosfou proposes you DPF and catalytic converters directly from the factory, without intermediaries, allowing you to get savings going up to 80% in relation to concessionary prices.

If your payment has failed, you can ask to be called by our customer service to finalize your order.

The prices of our parts, calculated as best as possible, depend notably on raw material prices/rare metals used in their manufacture. These therefore change frequently.  

Invite your friends and receive points to be used in your next order, by accepting your invitation your sponsored friends will receive a 10€ discount in their next order.

For every order placed, earn loyalty points, and convert them in discount vouchers to be used in your next orders whether you are an individual or PRO.

For more information on How To use my Promo Code, Loyalty points or Referral, click here: Sponsor you friends.

An e-mail confirmation is sent to you when your product leaves our warehouse and is handed over to one of our shipping providers (DPD, GLS, UPS...). Click on the link provided to track your parcel. If you do not receive this email or for any other information, you can contact our customer service at +33 1 84 802 890.

Service only available in France.

Once your order has been validated, you will be able to find your invoice online in "Order History" in the section "My Account" on our web site.

Please contact our customer service at +33 1 84 802 890, if You want to cancel your order. You will receive an answer as soon as possible.

1.Cancellation of an order paid, non-shipped:
Your order is fully refunded by Krosfou in case of payment by bank card or bank transfer.

2. Cancellation of a paid and shipped order:
We can NOT cancel orders that have already left our warehouse. If this is the case, we invite you to wait for the delivery of your package to make a return and be refunded. NEVER refuse a package because it will be destroyed and permanently lost.

For more info, click here: Returns

Our DPF and catalytic converters are not made of cordierite or silicium carbide but of high quality ceramic.
Krosfou, above all is the BEST QUALITY on the market in 2024.
Just-in-time production ensures higher quality than dealers who often distribute the products stocked by their car brands/manufacturers on the date of release of the vehicles. Our products are all manufactured in technology 2024 !

The diesel particulate filters (DPF) and catalytic converters Krosfou do not rust: they are made of stainless steel (INOX 409) !
Equipped with high-quality monoliths, whose cells (honeycomb structure) have been treated with a "unique coating technology for the deposition of thin layers of rare metals", Krosfou DPF eliminate dangerous nanoparticles, (extremely dangerous, especially for children) and have exceptional longevity: they regenerate almost 100% when you drive a few tens of km on highways and expressways !
More info HERE: Original NEW parts at Factory price.

No need to worry, your product mounts exactly the same way upstream and downstream of the part, by direct assembly.

This case of figure, although rather rare, can in fact present when the product hasn't been realized initially at the request of a car manufacturer (to supply one of its assembly chains on a specific model of vehicle). Our factory in Poland reserves the right to adopt the form that it finds most pertinent, notably in view of the permanent technological advances that It realizes. The principal subject being to put these at the disposal of the user in the best conditions.

Our DPF and catalytic converters are 95% made of INOX 409 (bodies and pipes). The INOX is a stainless steel and therefore resistant to corrosion, thanks to the chrome present in its composition. For technical and mechanical reasons, the extremities of our products that serve as a junction between the different parts are, as for them, manufactured in steel S235.
The INOX 409 of the ferritic steel family reacts to magnets, contrary to received ideas, there is no correlation between magnetism and material quality.

For more precision, all our welds are hand made.

The fitting kit includes the pieces needed to assemble your part (screws, clamps etc..).

The regular cleaning of the DPF is mandatory. It consists in increasing the revolutions of the motor to more than 3000 towers on many kilometers. This causes an increase in the temperature of the motor and allows to burn the fine particles, so a regeneration of the DPF. When intervention is required at the DPF level, a specific light turns on on the dashboard. The vehicle loses power and goes into degraded mode. All interventions have to be carried out by a professional and requires a resetting of the parameters with the diagnostic case.

When the catalytic converter is damaged, it becomes noisy and makes a noise saying "of old pan".

The change of a DPF or a catalytic converter varies according to the manufacturers' recommendations, between 80 000 and 120 000 km.

Fore more info, click here: What is the lifespan of a DPF or catalytic converter ?

Catalytic converter: sits principal function is to reduce the pollution produced by the exhaust gases. It transforms the most toxic constituents of exhaust gases (carbon monoxide, nitrogen oxide and unburned hydrocarbons) in less toxic elements (water, carbon dioxide and nitrogen). This transformation is possible thanks to a high temperature, reached after many minutes of driving.
The catalytic converter does not require the use of a diagnostic case.

Diesel Particulate filter: It is located after the catalytic converter, downstream of the exhaust line. The DPF retains, on its porous walls, solid particles that are generated by the motor. The DPF are mandatory installed in DIESEL cars since 2011.
The diagnostic case is required and only a professional can make the mounting of the DPF.

No, with the technology Krosfou 2024, the heat shields of the original parts are not necessary anymore.

This is a very rare occurrence. The manufacture of a made-to-measure part requires validation of your request by our factory.

1. Do we assemble the parts ?
No, we do not do the assembly. However, you will find HERE the list of garages recommended by Krosfou.

2. Do you have assembly instructions?
Yes, You will find them at the bottom of each page of the products you are interested in, or you can download them here, for:
- catalytic converters,
- DPF.

The Diesel Particulate Filter or DPF is a passive device controlled by your vehicle's electronics and its life span depends mainly on the condition of your engine and your driving.

Your engine must be well maintained and tuned: a small oil leak in the exhaust or a faulty EGR valve can destroy a DPF in less than 3 months.

Your driving should allow your vehicle to regenerate your DPF (burn off intercepted particles) about once every 2 weeks. All you need to do is drive for 20-30 minutes on a motorway/fast lane (or at a minimum engine speed of 3 000 rpm) for your vehicle's electronics (detecting a sufficiently high temperature and particles to be burned) to trigger the regeneration of your DPF.

Fore more info, click here: How to clean a Diesel Particulate Filter while driving ?

Benefit from the FREE RETURN within 30 days of the product(s) ordered by simply indicating your registration number and/or chassis number when you validate your order !

The countdown period of the 30 days starts from the date of receipt of the product. The free return within 30 days applies only to the return of a product delivered in the EU, intact, and returned in its original packaging.

Fore more info, click here: FREE Return within 30 days.

How does it work ?
- Log into your Krosfou account.
- Enter your friends' email addresses in the "SPONSOR PROGRAM" section.
- Wait for your friends to place an order to get your rewards.

Yes, all our products are GUARANTEED for 3 years. This warranty is limited to a use not exceeding 100.000 kilometers.

The period of warranty starts on the date of reception of the product.

We take these cases seriously and will examine each case thoroughly.

Please always check your packages upon delivery. In the case of damage of your packaging, be sure to take a picture of the packing carton, it is also important to verify the integrity of the contents of the package.

You can send us by mail the pictures taken on [email protected] we will do our best to replace your product if necessary.

In case of loss of package, kindly keep us informed, our logistics team will contact the delivery agency responsible for your package as soon as possible in order to locate this last one.

What matters to us is that you be refunded and satisfied.
The refund processing starts once your part is received at the warehouse/factory.
The refund delay as well as the interbank treatment can take up to 24 to 72 hours depending on your bank.
For more info, please click here: Returns.

You will find them at the bottom of each page of the products you are interested in, or you can download them here, for:
- catalytic converters,
- DPF.