2014-2021 BMW i3/i3 REx/i3s/i3s REx Brake Master Cylinder 34336858911

OEM Part #: 34-33-6-858-911 (34336858911)

Brake Master Cylinder 34336858911 for BMW

Actual photo

The exact part you’ll receive — not a stock photo.

$20.99

Used

Donor2014 BMW i3 · 0.6L · 70k miles

SKU: 284466 · 30-Day Returns

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Brake Master Cylinder 34336858911 — Used (SKU 284466)

Genuine OEM Used SKU: 284466 Donor Vehicle: 2014 BMW i3 · 0.6L · 70k miles 2 photos

$20.99

30-Day Returns

Brake Master Cylinder 34336858911 — Used (SKU 504480)

Genuine OEM Used SKU: 504480 Donor Vehicle: 2016 BMW i3 · 0.6L · 40k miles 2 photos

$28.49

30-Day Returns

Brake Master Cylinder 34336858911 — Used (SKU 572072)

Genuine OEM Used SKU: 572072 Donor Vehicle: 2014 BMW i3 · 0.6L 3 photos

$29.49

30-Day Returns

Brake Master Cylinder 34336858911 — Used (SKU 612673)

Genuine OEM Used SKU: 612673 Donor Vehicle: 2014 BMW i3 · ELECTRIC · 59k miles 2 photos

$29.49

30-Day Returns

Brake Master Cylinder 34336858911 — Used (SKU 526000)

Genuine OEM Used SKU: 526000 Donor Vehicle: 2015 BMW i3 · 0.6L · 56k miles 2 photos

$29.49

30-Day Returns

Genuine OEM — real photos
30-day returns on eligible parts
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A used BMW genuine OEM brake master cylinder (Part #6858911) from a donor vehicle. This component converts pedal force into hydraulic pressure to actuate the brakes. A failing master cylinder can cause a soft or spongy brake pedal, fluid leaks, or complete brake loss. It was removed from a BMW i3/i3s with either the 0.6L range-extender engine or the full battery EV drivetrain.

Specifications

Specifications for Brake Master Cylinder 34336858911
Fits Vehicle Model	i3, i3 REx, i3s, i3s REx
Fits Vehicle Make	BMW
OEM Part No	34-33-6-858-911 (34336858911)
Category	Master Cylinder

Compatible Vehicles

Fits 24 vehicle configurations across 1 make, 2014-2021.

Check your specific vehicle before ordering. This list shows year, make, and model. Some years have multiple trims or engines that use different parts, and individual listings may have additional fitment notes (e.g. “with sunroof only”). Review the full variant list below, or message us with your VIN and we’ll confirm the match.

BMW

i3 2014-2021 · 8 variants
i3 REx 2014-2021 · 8 variants
i3s 2018-2021 · 4 variants
i3s REx 2018-2021 · 4 variants

View all 24 vehicle configurations

Full vehicle fitment list for Brake Master Cylinder 34336858911
Year	Make	Model	Trim	Engine
2020	BMW	i3	Hatchback	Electric Vehicle
2021	BMW	i3	Hatchback	Electric Vehicle
2018	BMW	i3 REx	Hatchback	0.6L l2
2019	BMW	i3 REx	Hatchback	0.6L l2
2020	BMW	i3 REx	Hatchback	0.6L l2
2021	BMW	i3 REx	Hatchback	0.6L l2
2018	BMW	i3s	Hatchback	Electric Vehicle
2020	BMW	i3s	Hatchback	Electric Vehicle
2019	BMW	i3s	Hatchback	Electric Vehicle
2021	BMW	i3s	Hatchback	Electric Vehicle
2019	BMW	i3s REx	Hatchback	0.6L l2
2018	BMW	i3s REx	Hatchback	0.6L l2
2020	BMW	i3s REx	Hatchback	0.6L l2
2021	BMW	i3s REx	Hatchback	0.6L l2
2014	BMW	i3	Hatchback	Electric Vehicle
2015	BMW	i3	Hatchback	Electric Vehicle
2016	BMW	i3	Hatchback	Electric Vehicle
2014	BMW	i3 REx	Hatchback	0.6L l2
2016	BMW	i3 REx	Hatchback	0.6L l2
2015	BMW	i3 REx	Hatchback	0.6L l2
2017	BMW	i3	Hatchback	Electric Vehicle
2017	BMW	i3 REx	Hatchback	0.6L l2
2018	BMW	i3	Hatchback	Electric Vehicle
2019	BMW	i3	Hatchback	Electric Vehicle