BM57 Brake Master Cylinder (Rebuild Kit)

Suits: Nissan Skyline, Silvia, Z32

BM57 Brake Master Cylinder (Rebuild Kit)

BM57 Brake Master Cylinder (Rebuild Kit)

Suits: Nissan Skyline, Silvia, Z32

Suits: Nissan Skyline, Silvia, Z32

$ 51.00 USD

In Stock
Order by 2PM AEDT weekdays for same-day dispatch

- +
SKU: HFM-NISS-BRK-0008 Categories: , , Tags: , ,


We have re-developed our Brake Master Cylinder with higher quality rubbers and internals with a classic monochrome design. If you have an old/worn out Nissan BM57 BMC kicking around that has lost brake pedal pressure and cannot get seals for it. We have the solution – A full piston seal kit, including reservoir!


26.5mm – 17/16″ Bore

What You Get

1x Reservoir
2x Reservoir Grommets
1x First piston with rubber cup
1x Second piston with rubber cup
1x Piston Lock Ring
*Due to material shortages the colour of the lid may vary.


Q. Does my brake master cylinder need to be honed even if it looks ok?
A. Yes! It may look smooth to the human eye but the bore could still be out of round and worn. It will require honing for the new piston seals to seal correctly.

Q. The fluid sensor connector is on the wrong side, what can I do?
A. You can easily swap the sensor connector to either side of the BM57 by following these steps.
On the terminal side, push a small flat screwdriver in between the sensor connector and the bottom of the reservoir to lightly pry apart the lock tab. On the opposite side of the sensor connector, push through to pop it out. *This is much easier to do prior to installation!

Q. I have a round (or other shape) fluid sensor connector, will it fit?
A. No, our fluid sensor connector is rectangle (as shown in the product photo), in order to plug your existing fluid sensor connector into our one, you will need to cut your existing connector off and join the two exposed wires to individual spade terminals. Then, you can push these onto our connector.


Modifying vehicles is a specialist task and requires the knowledge and experience of competent individuals to be conducted safely.
We recommend this product be installed by a competent person. Instructions are given with every order where available, however, If you would like a copy prior to ordering, you're welcome to contact us at