Audi A4/A5/A8/S4/S5/S8/allroad Brake Master Cylinder 8K0611021B

Name: Brake Master Cylinder 8K0611021B
Brand: Audi
SKU: PS-22994
Price: 64.49 USD
Availability: OutOfStock

OEM Part #: 8K0-611-021-B (8K0611021B)

Brake Master Cylinder 8K0611021B for Audi

This page covers one exact OEM part number. Every unit we stocked has sold.

We may be able to get another

Used OEM parts are one-of-a-kind. We sometimes get another when we dismantle a matching vehicle, but we can’t say when — browse what’s in stock now:

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Brake Master Cylinder

Brake Master Cylinder

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This genuine Audi Brake Master Cylinder, OEM part number 8K0611021B, is essential for hydraulic brake system performance in models such as the 2011-2018 Audi A8, S8, A4, A5, and S4. Located within the master cylinder assembly, it is responsible for generating the hydraulic pressure needed to activate the brakes. Common issues this part resolves include loss of braking efficiency due to wear or damage. The master cylinder may also be referred to as a brake cylinder or hydraulic cylinder. Compatible with a range of engines including 2.0L L4, 3.0L V6, and 4.0L V8, this authentic OEM component ensures reliable braking performance, maintaining your vehicle's safety. Other compatible part numbers include 4H0611021, and it's manufactured by Girling-TRW.

Specifications

Specifications for Brake Master Cylinder 8K0611021B
Fits Vehicle Model	A4, A5, A8, allroad, S4, S5, S8
Fits Vehicle Make	Audi
OEM Part No	8K0-611-021-B (8K0611021B)
Compatible OEM Part No	8K0-611-021
Category	Master Cylinder

Compatible Vehicles

Fits 76 vehicle configurations across 1 make, 2008-2018.

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.

Audi

A4 2009-2012 · 13 variants
A5 2008-2012 · 12 variants 6 with notes
A8 2011-2018 · 30 variants
S4 2010-2012 · 3 variants
S5 2008-2012 · 8 variants 5 with notes
S8 2013-2018 · 6 variants
allroad 2013-2016 · 4 variants

View all 76 vehicle configurations — 11 with fitment notes

Full vehicle fitment list for Brake Master Cylinder 8K0611021B
Year	Make	Model	Trim	Engine	Note
2008	Audi	A5	Quattro Coupe	3.2L V6	For Vehicles with Production Date After 06/02/08
2008	Audi	S5	Coupe	4.2L V8	For Vehicles with Production Date After 06/02/08
2009	Audi	A4	Sedan	2.0L l4 Turbo
2009	Audi	A4	Quattro Wagon	2.0L l4 Turbo
2009	Audi	A4	Quattro Sedan	2.0L l4 Turbo
2009	Audi	A4	Quattro Sedan	3.2L V6
2009	Audi	A5	Quattro Coupe	3.2L V6	For Vehicles with Production Date After 06/02/08
2009	Audi	S5	Coupe	4.2L V8	For Vehicles with Production Date After 06/02/08
2010	Audi	A4	Sedan	2.0L l4 Turbo
2010	Audi	A4	Quattro Wagon	2.0L l4 Turbo
2010	Audi	A4	Quattro Sedan	2.0L l4 Turbo
2010	Audi	A5	Convertible	2.0L l4 Turbo
2010	Audi	A5	Quattro Coupe	2.0L l4 Turbo	For Vehicles with Production Date After 06/02/08
2010	Audi	A5	Quattro Coupe	3.2L V6	For Vehicles with Production Date After 06/02/08
2010	Audi	A5	Quattro Convertible	2.0L l4 Turbo
2010	Audi	S4	Sedan	3.0L V6 Supercharged
2010	Audi	S5	Coupe	4.2L V8	For Vehicles with Production Date After 06/02/08
2010	Audi	S5	Convertible	3.0L V6 Supercharged
2011	Audi	A4	Sedan	2.0L l4 Turbo
2011	Audi	A4	Quattro Wagon	2.0L l4 Turbo
2011	Audi	A4	Quattro Sedan	2.0L l4 Turbo
2011	Audi	A5	Convertible	2.0L l4 Turbo
2011	Audi	A5	Quattro Convertible	2.0L l4 Turbo
2011	Audi	A5	Quattro Coupe	2.0L l4 Turbo	For Vehicles with Production Date After 06/02/08
2011	Audi	A8	Quattro Sedan	4.2L V8
2011	Audi	A8	Quattro L Sedan	4.2L V8
2011	Audi	S4	Sedan	3.0L V6 Supercharged
2011	Audi	S5	Coupe	4.2L V8	For Vehicles with Production Date After 06/02/08
2011	Audi	S5	Convertible	3.0L V6 Supercharged
2012	Audi	A4	Sedan	2.0L l4 Turbo
2012	Audi	A4	Quattro Wagon	2.0L l4 Turbo
2012	Audi	A4	Quattro Sedan	2.0L l4 Turbo
2012	Audi	A5	Convertible	2.0L l4 Turbo
2012	Audi	A5	Quattro Coupe	2.0L l4 Turbo	For Vehicles with Production Date After 06/02/08
2012	Audi	A5	Quattro Convertible	2.0L l4 Turbo
2012	Audi	A8	Quattro Sedan	4.2L V8
2012	Audi	A8	Quattro L Sedan	4.2L V8
2012	Audi	A8	Quattro L Sedan	6.3L W12
2012	Audi	S4	Sedan	3.0L V6 Supercharged
2012	Audi	S5	Coupe	4.2L V8	For Vehicles with Production Date After 06/02/08
2012	Audi	S5	Convertible	3.0L V6 Supercharged
2013	Audi	A8	Quattro Sedan	3.0L V6 Supercharged
2013	Audi	A8	Quattro Sedan	4.0L V8 Turbo
2013	Audi	A8	Quattro L Sedan	3.0L V6 Supercharged
2013	Audi	A8	Quattro L Sedan	4.0L V8 Turbo
2013	Audi	A8	Quattro L Sedan	6.3L W12
2013	Audi	allroad	Wagon	2.0L l4 Turbo
2013	Audi	S8	Sedan	4.0L V8 Turbo
2014	Audi	A8	Quattro Sedan	3.0L V6 Supercharged
2014	Audi	A8	Quattro Sedan	4.0L V8 Turbo
2014	Audi	A8	Quattro L Sedan	3.0L V6 Supercharged
2014	Audi	A8	Quattro L Sedan	4.0L V8 Turbo
2014	Audi	A8	Quattro L Sedan	3.0L V6 Diesel Turbo
2014	Audi	A8	Quattro L Sedan	6.3L W12
2014	Audi	allroad	Wagon	2.0L l4 Turbo
2014	Audi	S8	Sedan	4.0L V8 Turbo
2015	Audi	A8	Quattro Sedan	3.0L V6 Supercharged
2015	Audi	A8	Quattro Sedan	4.0L V8 Turbo
2015	Audi	A8	Quattro L Sedan	3.0L V6 Supercharged
2015	Audi	A8	Quattro L Sedan	4.0L V8 Turbo
2015	Audi	A8	Quattro L Sedan	3.0L V6 Diesel Turbo
2015	Audi	A8	Quattro L Sedan	6.3L W12
2015	Audi	allroad	Wagon	2.0L l4 Turbo
2015	Audi	S8	Sedan	4.0L V8 Turbo
2016	Audi	A8	Quattro L Sedan	3.0L V6 Supercharged
2016	Audi	A8	Quattro L Sedan	4.0L V8 Turbo
2016	Audi	A8	Quattro L Sedan	3.0L V6 Diesel Turbo
2016	Audi	A8	Quattro L Sedan	6.3L W12
2016	Audi	allroad	Wagon	2.0L l4 Turbo
2016	Audi	S8	Sedan	4.0L V8 Turbo
2017	Audi	A8	Quattro L Sedan	3.0L V6 Supercharged
2017	Audi	A8	Quattro L Sedan	4.0L V8 Turbo
2017	Audi	S8	Sedan	4.0L V8 Turbo
2018	Audi	A8	Quattro L Sedan	3.0L V6 Supercharged
2018	Audi	A8	Quattro L Sedan	4.0L V8 Turbo
2018	Audi	S8	Sedan	4.0L V8 Turbo