Name: Brake Master Cylinder VAICO V20-4423 OE Ref 34 33 7 849 878
Brand: VAICO
SKU: VAICO-V20-4423
Price: 327.00 GBP
Availability: InStock
Rating: 4.8 (578 reviews)

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Brake Master Cylinder VAICO V20-4423 OE Ref 34 33 7 849 878

Key Specification:

EAN: 4062375345076
Material: Aluminium
Number of connectors: 2
OE REFERENCE: 34 33 7 849 878
OEM Reference number: 34337849878

See Full Specification

Sale

£ 327.00

£ 243.66 excl. VAT

In Stock

SKU:	VAICO V20-4423
Brand	VAICO

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Specification
Description
OEM Numbers
Compatibilities
Reviews

EAN

4062375345076

Material

Aluminium

Number of connectors

OE REFERENCE

34 33 7 849 878

OEM Reference number

34337849878

Packing Unit

Piston Diameter [mm]

26.99

PURPOSE GROUP

Brake Master Cylinder

Quality

Supplementary Info

Original VAICO Quality

Thread Size 1

M 12 x 1

Brake Master Cylinder VAICO V20-4423 OE Ref 34 33 7 849 878

Brake Master Cylinder OE Ref 34 33 7 849 878 – VAICO – OEM 34337849878

This Brake Master Cylinder OE Ref 34 33 7 849 878 is supplied by VAICO as a replacement for OEM reference 34337849878. It is intended for use in selected BMW vehicles and designed to meet original equipment fit and function requirements.

The part is identified by manufacturer reference V20-4423 and EAN EAN: 4062375345076, allowing accurate identification and compatibility verification before installation. It is suitable for replacing worn, damaged, or non-functioning components where dependable operation is required.

Correct part selection is essential to ensure proper fitment. Please verify compatibility using the OEM reference number or the vehicle registration lookup tool before ordering.

Vehicle Compatibility

Compatible with selected BMW models. Detailed compatibility information is available in the Compatibility section of this page.

If this part is not suitable for your vehicle, browse alternative options in our Braking System category.

Reference number(s) comparable with the original spare part number

BMW 34 33 7 849 878

OE reference number(s) comparable with the original spare part number

BMW

BMW 2 Coupe (F22, F87) From 10/2012 to 06/2021

M 235 i Rear-Wheel Drive 10/2013-06/2016, 240 kw, 2979 ccm, 326 PS, Coupe, Petrol , ENG: N55 B30 A

M2 Competition Rear-Wheel Drive 06/2018-06/2021, 302 kw, 2979 ccm, 411 PS, Coupe, Petrol , ENG: S55 B30 A

M2 Rear-Wheel Drive 11/2015-06/2018, 272 kw, 2979 ccm, 370 PS, Coupe, Petrol , ENG: N55 B30 A

M2 CS Rear-Wheel Drive 11/2019-06/2021, 331 kw, 2979 ccm, 450 PS, Coupe, Petrol , ENG: S55 B30 A

BMW 3 (F30, F80) From 11/2011 to 10/2018

320 d Rear-Wheel Drive 07/2015-10/2018, 140 kw, 1995 ccm, 190 PS, Saloon, Diesel , ENG: B47 D20 A

330 d Rear-Wheel Drive 07/2012-10/2018, 210 kw, 2993 ccm, 286 PS, Saloon, Diesel , ENG: N57 D30 A

340 i Rear-Wheel Drive 07/2015-10/2018, 240 kw, 2998 ccm, 326 PS, Saloon, Petrol , ENG: B58 B30 A

330 i Rear-Wheel Drive 07/2015-10/2018, 185 kw, 1998 ccm, 252 PS, Saloon, Petrol , ENG: B46 B20 B, B48 B20 B

M3 Competition Rear-Wheel Drive 03/2016-10/2018, 331 kw, 2979 ccm, 450 PS, Saloon, Petrol , ENG: S55 B30 A

M3 Rear-Wheel Drive 03/2014-10/2018, 317 kw, 2979 ccm, 431 PS, Saloon, Petrol , ENG: S55 B30 A

340 i Rear-Wheel Drive 07/2015-10/2018, 265 kw, 2998 ccm, 360 PS, Saloon, Petrol , ENG: B58 B30 A

330 d xDrive 4WD 03/2013-10/2018, 190 kw, 2993 ccm, 258 PS, Saloon, Diesel , ENG: N57 D30 A

330 d Rear-Wheel Drive 07/2012-10/2018, 190 kw, 2993 ccm, 258 PS, Saloon, Diesel , ENG: N57 D30 A

320 d xDrive 4WD 07/2015-10/2018, 140 kw, 1995 ccm, 190 PS, Saloon, Diesel , ENG: B47 D20 A

330 d xDrive 4WD 03/2013-10/2018, 210 kw, 2993 ccm, 286 PS, Saloon, Diesel , ENG: N57 D30 A

340 i xDrive 4WD 07/2015-10/2018, 240 kw, 2998 ccm, 326 PS, Saloon, Petrol , ENG: B58 B30 A

335 d xDrive 4WD 07/2013-10/2018, 230 kw, 2993 ccm, 313 PS, Saloon, Diesel , ENG: N57 D30 B

330 i xDrive 4WD 07/2015-10/2018, 185 kw, 1998 ccm, 252 PS, Saloon, Petrol , ENG: B46 B20 B, B48 B20 B, B48 B20 A

M3 CS Rear-Wheel Drive 01/2018-10/2018, 338 kw, 2979 ccm, 460 PS, Saloon, Petrol , ENG: S55 B30 A

325 d Rear-Wheel Drive 03/2016-02/2018, 165 kw, 1995 ccm, 224 PS, Saloon, Diesel , ENG: B47 D20 B

325 d Rear-Wheel Drive 03/2013-02/2016, 155 kw, 1995 ccm, 211 PS, Saloon, Diesel , ENG: N47 D20 D

340 i xDrive 4WD 07/2015-10/2018, 265 kw, 2998 ccm, 360 PS, Saloon, Petrol , ENG: B58 B30 A

325 d Rear-Wheel Drive 03/2013-02/2016, 160 kw, 1995 ccm, 218 PS, Saloon, Diesel , ENG: N47 D20 D

BMW 3 Gran Turismo (F34) From 07/2012

330 d Rear-Wheel Drive 03/2014-, 190 kw, 2993 ccm, 258 PS, Hatchback, Diesel , ENG: N57 D30 A

340 i Rear-Wheel Drive 07/2016-, 265 kw, 2998 ccm, 360 PS, Hatchback, Petrol , ENG: B58 B30 A

340 i Rear-Wheel Drive 07/2016-, 240 kw, 2998 ccm, 326 PS, Hatchback, Petrol , ENG: B58 B30 A

330 i xDrive 4WD 07/2016-, 183 kw, 1998 ccm, 249 PS, Hatchback, Petrol , ENG: B48 B20 B

330 d xDrive 4WD 03/2014-, 210 kw, 2993 ccm, 286 PS, Hatchback, Diesel , ENG: N57 D30 A

330 i Rear-Wheel Drive 07/2016-, 185 kw, 1998 ccm, 252 PS, Hatchback, Petrol , ENG: B48 B20 B

335 d xDrive 4WD 03/2014-, 230 kw, 2993 ccm, 313 PS, Hatchback, Diesel , ENG: N57 D30 B

340 i xDrive 4WD 07/2016-, 265 kw, 2998 ccm, 360 PS, Hatchback, Petrol , ENG: B58 B30 A

325 d Rear-Wheel Drive 07/2016-02/2018, 165 kw, 1995 ccm, 224 PS, Hatchback, Diesel , ENG: B47 D20 B

330 d xDrive 4WD 03/2014-, 190 kw, 2993 ccm, 258 PS, Hatchback, Diesel , ENG: N57 D30 A

340 i xDrive 4WD 07/2016-, 240 kw, 2998 ccm, 326 PS, Hatchback, Petrol , ENG: B58 B30 A

330 i xDrive 4WD 07/2016-, 185 kw, 1998 ccm, 252 PS, Hatchback, Petrol , ENG: B46 B20 B, B48 B20 B

330 d Rear-Wheel Drive 03/2014-, 210 kw, 2993 ccm, 286 PS, Hatchback, Diesel , ENG: N57 D30 A

BMW 3 Touring (F31) From 07/2012 to 06/2019

330 d Rear-Wheel Drive 07/2012-06/2019, 210 kw, 2993 ccm, 286 PS, Estate, Diesel , ENG: N57 D30 A

325 d Rear-Wheel Drive 03/2016-02/2018, 165 kw, 1995 ccm, 224 PS, Estate, Diesel , ENG: B47 D20 B

325 d Rear-Wheel Drive 03/2013-02/2016, 155 kw, 1995 ccm, 211 PS, Estate, Diesel , ENG: N47 D20 D

340 i xDrive 4WD 07/2015-06/2019, 265 kw, 2998 ccm, 360 PS, Estate, Petrol , ENG: B58 B30 A

340 i xDrive 4WD 07/2015-06/2019, 240 kw, 2998 ccm, 326 PS, Estate, Petrol , ENG: B58 B30 A

330 d xDrive 4WD 03/2013-06/2019, 190 kw, 2993 ccm, 258 PS, Estate, Diesel , ENG: N57 D30 A

330 i xDrive 4WD 07/2015-06/2019, 185 kw, 1998 ccm, 252 PS, Estate, Petrol , ENG: B46 B20 B, B48 B20 B

330 d xDrive 4WD 03/2013-06/2019, 210 kw, 2993 ccm, 286 PS, Estate, Diesel , ENG: N57 D30 A

330 d Rear-Wheel Drive 07/2012-06/2019, 190 kw, 2993 ccm, 258 PS, Estate, Diesel , ENG: N57 D30 A

335 d xDrive 4WD 11/2013-06/2019, 230 kw, 2993 ccm, 313 PS, Estate, Diesel , ENG: N57 D30 B

320 d Rear-Wheel Drive 07/2015-06/2019, 140 kw, 1995 ccm, 190 PS, Estate, Diesel , ENG: B47 D20 A

340 i Rear-Wheel Drive 07/2015-06/2019, 265 kw, 2998 ccm, 360 PS, Estate, Petrol , ENG: B58 B30 A

340 i Rear-Wheel Drive 07/2015-06/2019, 240 kw, 2998 ccm, 326 PS, Estate, Petrol , ENG: B58 B30 A

325 d Rear-Wheel Drive 03/2013-02/2016, 160 kw, 1995 ccm, 218 PS, Estate, Diesel , ENG: N47 D20 D

330 i Rear-Wheel Drive 07/2015-06/2019, 185 kw, 1998 ccm, 252 PS, Estate, Petrol , ENG: B48 B20 A

BMW 3 Touring Van (F31) From 07/2012 to 06/2019

340 i Rear-Wheel Drive 07/2015-06/2019, 240 kw, 2998 ccm, 326 PS, Estate Van, Petrol , ENG: B58 B30 A

330 d Rear-Wheel Drive 07/2012-06/2019, 190 kw, 2993 ccm, 258 PS, Estate Van, Diesel , ENG: N57 D30 A

330 i Rear-Wheel Drive 07/2015-06/2019, 185 kw, 1998 ccm, 252 PS, Estate Van, Petrol , ENG: B48 B20 A

330 d xDrive 4WD 03/2013-06/2019, 190 kw, 2993 ccm, 258 PS, Estate Van, Diesel , ENG: N57 D30 A

BMW 4 Convertible (F33, F83) From 10/2013 to 08/2020

440 i xDrive 4WD 03/2016-07/2020, 265 kw, 2998 ccm, 360 PS, Convertible, Petrol , ENG: B58 B30 A

435 d xDrive 4WD 07/2014-07/2020, 230 kw, 2993 ccm, 313 PS, Convertible, Diesel , ENG: N57 D30 B

M4 Rear-Wheel Drive 07/2014-07/2020, 317 kw, 2979 ccm, 431 PS, Convertible, Petrol , ENG: S55 B30 A

420 d Rear-Wheel Drive 11/2013-07/2020, 120 kw, 1995 ccm, 163 PS, Convertible, Diesel , ENG: B47 D20 A, N47 D20 C

420 d Rear-Wheel Drive 07/2015-07/2020, 140 kw, 1995 ccm, 190 PS, Convertible, Diesel , ENG: B47 D20 A

420 d Rear-Wheel Drive 07/2015-07/2020, 151 kw, 1995 ccm, 205 PS, Convertible, Diesel , ENG: B47 D20 A

425 d Rear-Wheel Drive 03/2016-02/2018, 165 kw, 1995 ccm, 224 PS, Convertible, Diesel , ENG: B47 D20 B

440 i Rear-Wheel Drive 03/2016-07/2020, 240 kw, 2998 ccm, 326 PS, Convertible, Petrol , ENG: B58 B30 A

430 i Rear-Wheel Drive 03/2016-07/2020, 185 kw, 1998 ccm, 252 PS, Convertible, Petrol , ENG: B46 B20 B, B48 B20 B

440 i Rear-Wheel Drive 03/2016-07/2020, 265 kw, 2998 ccm, 360 PS, Convertible, Petrol , ENG: B58 B30 A

430 d Rear-Wheel Drive 07/2014-07/2020, 190 kw, 2993 ccm, 258 PS, Convertible, Diesel , ENG: N57 D30 A

M4 Competition Rear-Wheel Drive 03/2016-07/2020, 331 kw, 2979 ccm, 450 PS, Convertible, Petrol , ENG: S55 B30 A

430 d Rear-Wheel Drive 07/2014-07/2020, 210 kw, 2993 ccm, 286 PS, Convertible, Diesel , ENG: N57 D30 A

440 i xDrive 4WD 03/2016-07/2020, 240 kw, 2998 ccm, 326 PS, Convertible, Petrol , ENG: B58 B30 A

430 i xDrive 4WD 03/2016-07/2020, 185 kw, 1998 ccm, 252 PS, Convertible, Petrol , ENG: B46 B20 B, B48 B20 B

BMW 4 Coupe (F32, F82) From 07/2013 to 06/2020

M4 Competition Rear-Wheel Drive 03/2016-06/2020, 331 kw, 2979 ccm, 450 PS, Coupe, Petrol , ENG: S55 B30 A

440 i Rear-Wheel Drive 03/2016-06/2020, 265 kw, 2998 ccm, 360 PS, Coupe, Petrol , ENG: B58 B30 A

430 d Rear-Wheel Drive 11/2013-06/2020, 190 kw, 2993 ccm, 258 PS, Coupe, Diesel , ENG: N57 D30 A

440 i xDrive 4WD 03/2016-06/2020, 240 kw, 2998 ccm, 326 PS, Coupe, Petrol , ENG: B58 B30 A

M4 GTS Rear-Wheel Drive 03/2016-06/2019, 368 kw, 2979 ccm, 500 PS, Coupe, Petrol , ENG: S55 B30 A

435 d xDrive 4WD 11/2013-06/2020, 230 kw, 2993 ccm, 313 PS, Coupe, Diesel , ENG: N57 D30 B

430 i xDrive 4WD 03/2016-06/2020, 185 kw, 1998 ccm, 252 PS, Coupe, Petrol , ENG: B46 B20 B, B48 B20 B

M4 CS Rear-Wheel Drive 07/2017-06/2019, 338 kw, 2979 ccm, 460 PS, Coupe, Petrol , ENG: S55 B30 A

420 d Rear-Wheel Drive 03/2015-06/2020, 140 kw, 1995 ccm, 190 PS, Coupe, Diesel , ENG: B47 D20 A

430 d xDrive 4WD 03/2014-06/2020, 190 kw, 2993 ccm, 258 PS, Coupe, Diesel , ENG: N57 D30 A

430 d xDrive 4WD 03/2014-06/2020, 210 kw, 2993 ccm, 286 PS, Coupe, Diesel , ENG: N57 D30 A

425 d Rear-Wheel Drive 03/2016-10/2017, 165 kw, 1995 ccm, 224 PS, Coupe, Diesel , ENG: B47 D20 B

440 i xDrive 4WD 03/2016-06/2020, 265 kw, 2998 ccm, 360 PS, Coupe, Petrol , ENG: B58 B30 A

440 i Rear-Wheel Drive 03/2016-06/2020, 240 kw, 2998 ccm, 326 PS, Coupe, Petrol , ENG: B58 B30 A

430 i Rear-Wheel Drive 03/2016-06/2020, 185 kw, 1998 ccm, 252 PS, Coupe, Petrol , ENG: B46 B20 B, B48 B20 B

M4 Rear-Wheel Drive 03/2014-06/2020, 317 kw, 2979 ccm, 431 PS, Coupe, Petrol , ENG: S55 B30 A

420 d xDrive 4WD 11/2013-06/2020, 120 kw, 1995 ccm, 163 PS, Coupe, Diesel , ENG: B47 D20 A, N47 D20 C

420 d xDrive 4WD 03/2015-06/2020, 140 kw, 1995 ccm, 190 PS, Coupe, Diesel , ENG: B47 D20 A

430 i xDrive 4WD 03/2016-06/2020, 183 kw, 1998 ccm, 249 PS, Coupe, Petrol , ENG: B48 B20 B

430 d Rear-Wheel Drive 11/2013-06/2020, 210 kw, 2993 ccm, 286 PS, Coupe, Diesel , ENG: N57 D30 A

BMW 4 Gran Coupe (F36) From 03/2014 to 05/2021

430 d xDrive 4WD 07/2014-12/2020, 190 kw, 2993 ccm, 258 PS, Coupe, Diesel , ENG: N57 D30 A

420 d xDrive 4WD 03/2014-12/2020, 120 kw, 1995 ccm, 163 PS, Coupe, Diesel , ENG: B47 D20 A, N47 D20 C

420 d Rear-Wheel Drive 03/2015-12/2020, 140 kw, 1995 ccm, 190 PS, Coupe, Diesel , ENG: B47 D20 A

440 i xDrive 4WD 03/2016-05/2021, 240 kw, 2998 ccm, 326 PS, Coupe, Petrol , ENG: B58 B30 A

425 d Rear-Wheel Drive 03/2016-02/2018, 155 kw, 1995 ccm, 211 PS, Coupe, Diesel , ENG: B47 D20 B

430 i xDrive 4WD 03/2016-05/2021, 185 kw, 1998 ccm, 252 PS, Coupe, Petrol , ENG: B46 B20 B, B48 B20 B

430 d Rear-Wheel Drive 07/2014-12/2020, 210 kw, 2993 ccm, 286 PS, Coupe, Diesel , ENG: N57 D30 A

430 i xDrive 4WD 03/2016-05/2021, 183 kw, 1998 ccm, 249 PS, Coupe, Petrol , ENG: B48 B20 B

435 d xDrive 4WD 07/2014-12/2020, 230 kw, 2993 ccm, 313 PS, Coupe, Diesel , ENG: N57 D30 B

440 i xDrive 4WD 03/2016-05/2021, 265 kw, 2998 ccm, 360 PS, Coupe, Petrol , ENG: B58 B30 A

430 d Rear-Wheel Drive 07/2014-12/2020, 190 kw, 2993 ccm, 258 PS, Coupe, Diesel , ENG: N57 D30 A

420 d Rear-Wheel Drive 03/2014-12/2020, 120 kw, 1995 ccm, 163 PS, Coupe, Diesel , ENG: B47 D20 A, N47 D20 C

420 d xDrive 4WD 03/2015-12/2020, 140 kw, 1995 ccm, 190 PS, Coupe, Diesel , ENG: B47 D20 A

425 d Rear-Wheel Drive 03/2016-02/2018, 165 kw, 1995 ccm, 224 PS, Coupe, Diesel , ENG: B47 D20 B

440 i Rear-Wheel Drive 03/2016-05/2021, 240 kw, 2998 ccm, 326 PS, Coupe, Petrol , ENG: B58 B30 A

430 d xDrive 4WD 07/2014-12/2020, 210 kw, 2993 ccm, 286 PS, Coupe, Diesel , ENG: N57 D30 A

430 i Rear-Wheel Drive 03/2016-05/2021, 185 kw, 1998 ccm, 252 PS, Coupe, Petrol , ENG: B46 B20 B, B48 B20 B

440 i Rear-Wheel Drive 03/2016-05/2021, 265 kw, 2998 ccm, 360 PS, Coupe, Petrol , ENG: B58 B30 A

Berry
12 Nov, 2025
elderly car so really pleased that the part could be supplied :-) Correct part arrived swiftly - excellent - thank you
Edward & Susan
20 OCT, 2025
These guys were real helpful when I was looking for an EGR valve. Great communications and fast delivery, the valve did exactly as It was meant to do and it was a lot cheaper than everywhere else I looked. I'll be using eAuto Parts again. Top banana.
Charlie
27 AUG, 2025
eAuto Parts made me happy because it only took 2 minutes to order the part and at a very good price, also very quick delivery, will definitely deal with them again.
Adam Taylor
12 May, 2025
Quick enquiry response, easy buying and quick delivery. Quality of goods was good and fitted with no problem (Suzuki bonnet hinges.) recommended.
Helena Garcia
2 January, 2025
The correct part was rapidly identified and located, and was despatched promply to my chosen repairer in time for the work to be done on schedule. Very pleased with the service and will be using eAuto Parts again.