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DormanPart #: M630918

Dorman M630918 Brake Master Cylinder
⚙️ 113 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$165.53Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship
Most orders ship same-day if ordered before 1pm CST.
✅OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: BMW, 125i, 230i, 230i xDrive, 328d, 328d xDrive, 328i, 328i GT xDrive, 328i xDrive, 330e, 330i, 330i GT xDrive, 330i xDrive, 335i, 335i GT xDrive, 335i xDrive, 340i, 340i GT xDrive, 340i xDrive, 428i, 428i Gran Coupe, 428i xDrive, 428i xDrive Gran Coupe, 430i, 430i Gran Coupe, 430i xDrive, 430i xDrive Gran Coupe, 435i, 435i Gran Coupe, 435i xDrive, 435i xDrive Gran Coupe, 440i, 440i Gran Coupe, 440i xDrive, 440i xDrive Gran Coupe, 520i, 530e, 530e xDrive, 530i, 530i xDrive, 540i, 540i xDrive, 740e xDrive, 750i, 750i xDrive, 750Li, 750Li xDrive, ActiveHybrid 3, M135i, M140i, M2, M235i, M235i xDrive, M240i, and M240i xDrive
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST
Not what you need? Click here for all Brake Master Cylinder options
Dorman M630918 Brake Master Cylinder
| Brand | Dorman |
| Part Number | M630918 |
| Mounting Hardware Included | No |
| Master Cylinder Bore Diameter | 1 |
| Master Cylinder Material | Cast iron |
| Reservoir Included | No |
| Sensor Included | No |
| Number of Outlets | 2 |
| Package Contents | Master cylinder |
| Rearward Outlet Size | M12x1.0 |
| Reservoir Type | Removable |
| Secondary Outlet Thread Diameter | M12x1.0 |
This part fits 113 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2019 | BMW | 230i | N/A | |
| 2019 | BMW | 230i xDrive | N/A | |
| 2019 | BMW | 340i GT xDrive | N/A | |
| 2019 | BMW | 430i | N/A | |
| 2019 | BMW | 430i Gran Coupe | N/A | |
| 2019 | BMW | 430i xDrive | N/A | |
| 2019 | BMW | 430i xDrive Gran Coupe | N/A | |
| 2019 | BMW | 440i | N/A | |
| 2019 | BMW | 440i Gran Coupe | N/A | |
| 2019 | BMW | 440i xDrive | N/A | |
| 2019 | BMW | 440i xDrive Gran Coupe | N/A | |
| 2019 | BMW | 520i | N/A | |
| 2019 | BMW | 530e | N/A | |
| 2019 | BMW | 530e xDrive | N/A | |
| 2019 | BMW | 530i | N/A | |
| 2019 | BMW | 530i xDrive | N/A | |
| 2019 | BMW | 540i | N/A | |
| 2019 | BMW | 540i xDrive | N/A | |
| 2019 | BMW | 740e xDrive | N/A | |
| 2019 | BMW | 750i | N/A | |
| 2019 | BMW | 750i xDrive | N/A | |
| 2019 | BMW | 750Li | N/A | |
| 2019 | BMW | 750Li xDrive | N/A | |
| 2019 | BMW | M140i | N/A | |
| 2019 | BMW | M2 | N/A | |
| 2019 | BMW | M240i | N/A | |
| 2019 | BMW | M240i xDrive | N/A | |
| 2018 | BMW | 230i | N/A | |
| 2018 | BMW | 230i xDrive | N/A | |
| 2018 | BMW | 328d | N/A | |
| 2018 | BMW | 328d xDrive | N/A | |
| 2018 | BMW | 330e | N/A | |
| 2018 | BMW | 330i | N/A | |
| 2018 | BMW | 330i GT xDrive | N/A | |
| 2018 | BMW | 330i xDrive | N/A | |
| 2018 | BMW | 340i | N/A | |
| 2018 | BMW | 340i GT xDrive | N/A | |
| 2018 | BMW | 340i xDrive | N/A | |
| 2018 | BMW | 430i | N/A | |
| 2018 | BMW | 430i Gran Coupe | N/A | |
| 2018 | BMW | 430i xDrive | N/A | |
| 2018 | BMW | 430i xDrive Gran Coupe | N/A | |
| 2018 | BMW | 440i | N/A | |
| 2018 | BMW | 440i Gran Coupe | N/A | |
| 2018 | BMW | 440i xDrive | N/A | |
| 2018 | BMW | 440i xDrive Gran Coupe | N/A | |
| 2018 | BMW | M140i | N/A | |
| 2018 | BMW | M2 | N/A | |
| 2018 | BMW | M240i | N/A | |
| 2018 | BMW | M240i xDrive | N/A | |
| 2017 | BMW | 230i | N/A | |
| 2017 | BMW | 230i xDrive | N/A | |
| 2017 | BMW | 328d | N/A | |
| 2017 | BMW | 328d xDrive | N/A | |
| 2017 | BMW | 330e | N/A | |
| 2017 | BMW | 330i | N/A | |
| 2017 | BMW | 330i GT xDrive | N/A | |
| 2017 | BMW | 330i xDrive | N/A | |
| 2017 | BMW | 340i | N/A | |
| 2017 | BMW | 340i GT xDrive | N/A | |
| 2017 | BMW | 340i xDrive | N/A | |
| 2017 | BMW | M140i | N/A | |
| 2017 | BMW | M2 | N/A | |
| 2017 | BMW | M240i | N/A | |
| 2017 | BMW | M240i xDrive | N/A | |
| 2016 | BMW | 328d | N/A | |
| 2016 | BMW | 328d xDrive | N/A | |
| 2016 | BMW | 328i | N/A | |
| 2016 | BMW | 328i GT xDrive | N/A | |
| 2016 | BMW | 328i xDrive | N/A | |
| 2016 | BMW | 330e | N/A | |
| 2016 | BMW | 330i | N/A | |
| 2016 | BMW | 335i GT xDrive | N/A | |
| 2016 | BMW | 340i | N/A | |
| 2016 | BMW | 340i xDrive | N/A | |
| 2016 | BMW | M135i | N/A | |
| 2016 | BMW | M2 | N/A | |
| 2016 | BMW | M235i | N/A | |
| 2016 | BMW | M235i xDrive | N/A | |
| 2015 | BMW | 328d | N/A | |
| 2015 | BMW | 328d xDrive | N/A | |
| 2015 | BMW | 328i | N/A | |
| 2015 | BMW | 328i GT xDrive | N/A | |
| 2015 | BMW | 328i xDrive | N/A | |
| 2015 | BMW | 335i | N/A | |
| 2015 | BMW | 335i GT xDrive | N/A | |
| 2015 | BMW | 335i xDrive | N/A | |
| 2015 | BMW | 428i | N/A | |
| 2015 | BMW | 428i Gran Coupe | N/A | |
| 2015 | BMW | 428i xDrive | N/A | |
| 2015 | BMW | 428i xDrive Gran Coupe | N/A | |
| 2015 | BMW | 435i | N/A | |
| 2015 | BMW | 435i Gran Coupe | N/A | |
| 2015 | BMW | 435i xDrive | N/A | |
| 2015 | BMW | 435i xDrive Gran Coupe | N/A | |
| 2015 | BMW | ActiveHybrid 3 | N/A | |
| 2015 | BMW | M135i | N/A | |
| 2015 | BMW | M235i | N/A | |
| 2015 | BMW | M235i xDrive | N/A | |
| 2014 | BMW | 328d | N/A | |
| 2014 | BMW | 328d xDrive | N/A | |
| 2014 | BMW | 328i | N/A | |
| 2014 | BMW | 328i GT xDrive | N/A | |
| 2014 | BMW | 328i xDrive | N/A | |
| 2014 | BMW | 335i | N/A | |
| 2014 | BMW | 335i GT xDrive | N/A | |
| 2014 | BMW | 335i xDrive | N/A | |
| 2014 | BMW | ActiveHybrid 3 | N/A | |
| 2014 | BMW | M135i | N/A | |
| 2014 | BMW | M235i | N/A | |
| 2013 | BMW | 125i | N/A | |
| 2013 | BMW | ActiveHybrid 3 | N/A | |
| 2013 | BMW | M135i | N/A |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
11-4694130.3412234336851095MC146080MC391505
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.