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Clearly identified references
Compatibility checked before purchase
Delivery calculated before payment
Technical specifications
Thickness [mm]
10 mm
Inner diameter [mm]
28 mm
Outer diameter [mm]
49 mm
Fitting position
interior
Commercial warranty
3-year manufacturer’s warranty
Logistics and customs
Weight
0.02 kg
References
Manufacturer ref.
31721
KonexAuto ref.
KX1500042382922
IAM
31721
GTIN
4027816317210
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Replacement parts
Frequently asked questions
How do I check compatibility?
Select the exact vehicle, then compare OE references and fitting criteria with the original part.
Where can I check price and availability?
The purchase panel displays this part’s price and availability. Commercial information is checked before ordering.
How can I find the collection or delivery date?
Enter the requested details under Store collection or Delivery to get an estimate for your order.
How do I request a return or exchange?
Contact KonexAuto within 14 days of delivery with your order number and the part concerned. We will help you with your request.
Returns and exchanges
14 days after delivery
You can request a return or exchange within 14 days of receiving your order. Contact us to arrange the next steps.
1Contact KonexAuto with your order number and the part reference.
2We will explain the steps for your return or exchange.
3Pack the part carefully and follow the return instructions provided.
Product description
Spark plug well seal FEBI BILSTEIN 31721
Brand : FEBI BILSTEIN. Manufacturer part number : 31721. Category : Spark plug well seal.
Specifications : Thickness [mm] : 10 mm ; Inner diameter [mm] : 28 mm ; Outer diameter [mm] : 49 mm ; Fitting position : interior ; Commercial warranty : 3-year manufacturer’s warranty.
Google reviews
enes dagdelen
5/5
Super gentil, il m’a même aidé a monter ma plaque malgré que j’étais loin du magasin, super super super
(Translated by Google)
Super nice guy, he even helped me install my license plate even though I was far from the store, super super super
saila MDJASSIRI
5/5
Super bon service clientèle. Super satisfaite. N’hésitez pas foncez.
(Translated by Google)
Excellent customer service. Extremely satisfied. Don't hesitate, go for it!
GIRESSE KINGOTO NTONA
5/5
Superbe accueil 🤩 Vendeur souriant et très serviable. Magnifique !
(Translated by Google)
Excellent service 🤩 Smiling and very helpful salesperson. Wonderful!
Morgane P.
5/5
Nouvelle societe sur Viry, avec une belle diversité et bcp de choix au niveau des pièces, délais rapide je recommande!
Merci beaucoup à Moise pour ses conseils !
(Translated by Google)
New company in Viry, with a great variety and lots of choice in parts, fast turnaround, I recommend them!
Many thanks to Moise for his advice!
Deborah BUPE
5/5
Claude Houtman
5/5
Devis téléphone rapide et une réception dans les 2 jours de mes pièces auto
Je recommande vivement
(Translated by Google)
Quick quote over the phone and my car parts arrived within 2 days.
Highly recommended.
saad ould mohamed
5/5
achat des pièces .
super gentil agréable très professionnel
(Translated by Google)
Purchase of parts.
Super nice, pleasant, very professional.
Fabien Bories
5/5
Services rapide et serviable.
Commandé a 13h, récupéré a 15h
Parfait
Merci
(Translated by Google)
Fast and helpful service.
Ordered at 1 PM, picked up at 3 PM.
Perfect.
Thank you.
Ouagdi Kraiem
5/5
Bon garage, pièces détachées accessibles à prix honnête.
(Translated by Google)
Good garage, spare parts available at a fair price.
salimata konta
5/5
J’ai été très bien accueillie lors de mes visites et j’ai été très satisfaite du service. L’équipe est professionnelle, à l’écoute et très agréable. Je recommande vivement KONEXAUTO ! ⭐⭐⭐⭐⭐
(Translated by Google)
I received a very warm welcome during my visits and was very satisfied with the service. The team is professional, attentive, and very pleasant. I highly recommend KONEXAUTO! ⭐⭐⭐⭐⭐
Andy Wetsh
5/5
À l’écoute et très professionnel
(Translated by Google)
Attentive and very professional
Mason Petion
5/5
Passage ce jour et je n’ai rien à dire à part que tout était parfait.
(Translated by Google)
I went there today and I have nothing to say except that everything was perfect.
FABRE DAVID
5/5
Pour une première commande j’ai surtout apprécié la rapidité d’envoi. Produit conforme à mes attentes avec un tarif très correct. Je recommanderai sûrement d’autres articles.
(Translated by Google)
For my first order, I especially appreciated the speed of delivery. The product met my expectations and the price was very reasonable. I will definitely order other items from them.
smart philosophy
5/5
Bon accueil et professionnalisme de mise
Les pièces commandées arrivent rapidement
Je recommande vivement cet établissement
(Translated by Google)
Friendly welcome and professional service.
The ordered parts arrived quickly.
I highly recommend this establishment.
Obed Mpassi
5/5
binta n'diaye
5/5
Parfait fermeture tardive donc parfait. Je recommande. Merci
(Translated by Google)
Perfect, late opening, so perfect. I recommend it. Thank you.
Mathieu LOGEGO
5/5
Excellent,accueil chaleureux, renseignements fiable et service rapide.
Je recommande les yeux fermés.
(Translated by Google)
Excellent, warm welcome, reliable information, and fast service.
I highly recommend them.
yann paricard
5/5
Très bonne équipe
Sérieux, respect du client,Très accueillant
Pièces de bonnes qualités
Vraiment rien à leurs reprocher depuis l'ouverture du magasin rester comme vous êtes
(Translated by Google)
Excellent team! Professional, respectful of the customer, very welcoming. High-quality parts. Absolutely nothing to complain about since the store opened. Keep up the good work!
El Hadji Camara
5/5
Sofian Akram
5/5
Excellent magasin de pièces détachées !
J’ai trouvé les pièces dont j’avais besoin très rapidement, avec des prix vraiment très intéressants par rapport à d’autres enseignes.
Le vendeur est sérieux, professionnel et de bon conseil, ce qui met en confiance. Service efficace du début à la fin.
Je recommande fortement Konex Auto à tous ceux qui cherchent des pièces auto de qualité sans se ruiner.
(Translated by Google)
Excellent auto parts store!
I found the parts I needed very quickly, at really great prices compared to other stores.
The salesperson is reliable, professional, and offers good advice, which inspires confidence. Efficient service from start to finish.
I highly recommend Konex Auto to anyone looking for quality auto parts without breaking the bank.
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