Check parts compatibilityIdentify your vehicle by plate, VIN or model.
Also compare the OE reference shown on your original part.
Clearly identified references
Compatibility checked before purchase
Delivery calculated before payment
Technical specifications
Cylinder piston diameter [mm]
20.6 mm
Number of threads
4
Centring diameter [mm]
37.5 mm
Distance between the fixing holes [mm]
86 mm
Number of fixing holes
2
Diameter of the fixing points [mm]
8.7 mm
External length [mm]
220 mm
Logistics and customs
Weight
1.613 kg
NC8
84135061
References
Manufacturer ref.
MC2246
KonexAuto ref.
KX03030337559
IAM
MC2246
GTIN
3329581070576
Comparable OE references
OPEL
558185
Use the OE reference together with your vehicle to identify the correct part.
Choose a make
Select a make to view its models and engines.
Choose a model
Select a model to view its engines.
Engines
Vehicle
hp
kW
cm³
Production
1.0Fitting restrictions
Year from
198105
Year up to
198108
hp41
kW30
cm³993
Production09/1979 – 08/1982
1.0Fitting restrictions
Year from
198105
Year up to
198108
hp45
kW33
cm³993
Production09/1979 – 08/1984
1.2Fitting restrictions
Year from
198105
Year up to
198108
hp53
kW39
cm³1,196
Production08/1979 – 07/1982
1.2 SFitting restrictions
Year from
198105
Year up to
198108
hp60
kW44
cm³1,196
Production08/1979 – 08/1984
1.3 NFitting restrictions
Year up to
198108
hp60
kW44
cm³1,297
Production08/1979 – 08/1984
1.3 SFitting restrictions
Year from
198105
Year up to
198108
hp75
kW55
cm³1,297
Production08/1979 – 08/1984
Engines
Vehicle
hp
kW
cm³
Production
1.2Fitting restrictions
Year from
198105
hp53
kW39
cm³1,196
Production08/1979 – 07/1982
1.2 SFitting restrictions
Year from
198105
Year up to
198407
hp60
kW44
cm³1,196
Production08/1979 – 08/1984
1.3 NFitting restrictions
Year from
198105
hp60
kW44
cm³1,297
Production08/1979 – 08/1984
1.3 SFitting restrictions
Year from
198105
hp75
kW55
cm³1,297
Production08/1979 – 08/1984
1.6 DFitting restrictions
Year from
198204
hp54
kW40
cm³1,598
Production03/1982 – 08/1984
Data updated on Nov 11, 2026
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
Brake master cylinder MGA MC2246
Brand : MGA. Manufacturer part number : MC2246. Category : Brake master cylinder.
Specifications : Cylinder piston diameter [mm] : 20.6 mm ; Number of threads : 4 ; Centring diameter [mm] : 37.5 mm ; Distance between the fixing holes [mm] : 86 mm ; Number of fixing holes : 2 ; Diameter of the fixing points [mm] : 8.7 mm ; External length [mm] : 220 mm ; Weight : 1.613 kg.
OE cross-reference numbers : OPEL : 558185.
Google reviews
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!
Daddy NGUEMA
5/5
Super accueil ! Rapide et fiable pour vos commandes ! Je vous le recommande fortement
(Translated by Google)
Excellent service! Fast and reliable with your orders! I highly recommend them.
Joseph MBULUKU
5/5
Très accueillant. Suis jamais déçu avec eu
(Translated by Google)
Very welcoming. I'm never disappointed with them.
berleen-aby NTOKONDA
5/5
Super expérience, accueil agréable le vendeur est très à l’écoute livraison rapide reçu dans la journée. Je recommande
(Translated by Google)
Great experience, friendly welcome, the seller was very attentive, fast delivery, received the same day. I recommend them.
Delphine Poisson
5/5
Parfait
(Translated by Google)
Perfect
Vanessa Gueugnot
5/5
Besoin d une pièce en urgence pièce disponible immédiatement personne a l' écoute et prend le temps de donnée des conseils même après la vente après achat je recommande fortement
(Translated by Google)
Needed a part urgently? Part available immediately. The person was attentive and took the time to give advice even after the sale. I highly recommend them.
Noura Lounes
5/5
Accueil au Top ! Ils ont tout et connaissent vraiment les dimensions de chaque pièce en fonction du véhicule. Plusieurs mois que je fais mes achats uniquement chez eux. De vraies pro. Je recommande totalement !
(Translated by Google)
Excellent service! They have everything and really know the dimensions of each part for each vehicle. I've been shopping exclusively with them for several months now. True professionals. I highly recommend them!
Arris Bayeckola
5/5
Expériences très agréable toute l’équipe est à l’écoute et aux petits soins avec les clients je recommande fortement
(Translated by Google)
A very pleasant experience; the whole team is attentive and takes great care of the customers. I highly recommend it.
Tony Niakissa
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.
beniamin 91350
5/5
Très bon accueil, pièce commandée le matin reçu l’après-midi
(Translated by Google)
Excellent service, part ordered in the morning received in the afternoon
elvyo
5/5
Je suis passé Jeudi dernier et vous avez fermé 20min plus tard exprès pour moi , vous m’avez sauvé ! 5 étoiles c’est le minimum. Merci encore
(Translated by Google)
I stopped by last Thursday and you stayed open 20 minutes late especially for me – you saved me! 5 stars is the minimum. Thanks again!
Claire Houtman
5/5
Une adresse à connaître
Très bon fournisseur de pièce auto, à l’écoute de ses clients.
Je recommande
(Translated by Google)
A great place to know!
Excellent auto parts supplier, very responsive to its customers.
I recommend them.
Krys
5/5
J’ai appelé pour savoir s’ils avaient une pièce en stock, et malheureusement ce n’était pas le cas. Cependant, le monsieur au téléphone était vraiment hyper gentil, a pris le temps d’écouter et me conseiller. Si j’ai à nouveau besoin un jour, je me dirigerai à nouveau vers eux !
(Translated by Google)
I called to see if they had the part in stock, and unfortunately, they didn't. However, the gentleman on the phone was incredibly kind, took the time to listen, and offered advice. If I ever need anything again, I'll definitely go to them!
Alexandre Truff
5/5
Je recommande vivement , petite boutique très accueillante à taille humaine ! Merci encore pour les conseils , ça a sauver ma Golf ❤️
(Translated by Google)
I highly recommend this small, welcoming shop with a personal touch! Thanks again for the advice, it saved my Golf ❤️
Hans Mpm
4/5
Vendeur accueillant vente rapide satisfait
(Translated by Google)
Friendly seller, quick sale, satisfied
El Hadji Camara
5/5
alain baka
5/5
M.D (Mécanicien Diawara)
5/5
Service de livraison efficace merci
(Translated by Google)
Efficient delivery service, thank you.
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