Audi A4 master cylinder price snapshot
- Low
- $30
- Average
- $87
- High
- $247
Vehicle-specific price guide
How much is a used Audi A4 master cylinder?
Asking prices from 67 salvage yards in 11 states, broken down by model year, condition grade, and fitment variant.
SKWritten bySaurabh Kumar · Co-Founder & CTO
SK
Saurabh Kumar
Co-Founder & CTO, Part Price Guide
Built the pricing pipeline that collects and normalizes used OEM part listings from salvage yards and online marketplaces across the US.
ASReviewed byAmbika Sharma · Co-Founder & COO
Last updatedOct 16, 2026AS
Ambika Sharma
Co-Founder & COO, Part Price Guide
12 years of project management and technical operations experience. Reviews price guides for sample size, fitment accuracy, and data freshness.
Part overview
About the Audi A4 master cylinder
What the master cylinder does, common failure signs, and prices across all vehicles: used master cylinder price guide →
Also known asBrake Master Cylinder
Price summary
A used Audi A4 master cylinder costs $30 to $247, with a median asking price of $51. Based on 438 priced salvage yard listings across the US, compatible across 2009–2024 (16 model years), updated Oct 16, 2026. Prices exclude shipping, core charges, and installation.
Grade A (excellent)$51
Grade B (good)$99
USD
Condition comparison
Price by part grade
Grade AClean / low wear$30–$247370 listings
Grade BStandard used$51–$21847 listings
Grade XUngraded$35–$15021 listings
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $30–$247 | 370 | |
| Grade BStandard used | $51–$218 | 47 | |
| Grade XUngraded | $35–$150 | 21 |
Median by grade
Grade price comparison
Grade A$51
Grade B$99
Ungraded$50
Median asking price by seller-reported condition grade · $30–$247 overall range
Regional supply
Where the Audi A4 master cylinder is listed
We found priced Audi A4 master cylinder listings at 67 salvage yards across 11 states. Arizona supplies the most, with 116 listings (25% of the total) from 11 yards. Location matters: yards in Arizona ask a median $51, while Indiana yards ask $193, 278% more for the same part. Shipping usually costs less than that gap for smaller parts, so it can pay to buy out of state.
| State | Listings | Yards | Median ask |
|---|---|---|---|
| Arizona | 116 | 11 | $51 |
| Florida | 56 | 7 | $99+94% |
| California | 51 | 14 | $51 |
| Illinois | 51 | 6 | $99+94% |
| Indiana | 46 | 5 | $193+278% |
| Texas | 42 | 11 | $75+47% |
| Georgia | 34 | 3 | $99+94% |
| Michigan | 26 | 4 | $177+247% |
States with at least 10 priced listings. % is versus the $51 national median.
Replacement cost
What is the Audi A4 master cylinder replacement cost?
- Used part
- $51
- Audi A4 median asking price
- Labor
- $145–$450
- 1.5–3 hours at $95–$150/hr
- Estimated total
- $195–$500
- median used part + labor
Labor is a typical independent-shop range for master cylinder replacement, not a quote for your vehicle; it does not include brake fluid and full system bleed at all four wheels. The part price is the live median from the salvage-yard listings on this page. Full master cylinder replacement cost breakdown
Sources
- Labor time estimates: Part Price Guide labor database
Model-year comparison
What does a Audi A4 master cylinder cost by year?
202450 listingsFits 8 years$51$40 – $196202350 listingsFits 6 years$99$50 – $222202250 listingsFits 7 years$51$35 – $218202150 listingsFits 6 years$99$50 – $222202050 listingsFits 8 years$51$40 – $196201950 listingsFits 7 years$65$35 – $193201850 listingsFits 7 years$65$46 – $247201750 listingsFits 7 years$65$35 – $193201650 listingsFits 8 years$51$30 – $168201550 listingsFits 8 years$46$35 – $65
Market analysis
How much does a used Audi A4 master cylinder cost?
Asking prices for a used Audi A4 master cylinder are unusually spread out: the top listing asks about 8 times what the cheapest does, so which unit you pick matters more than the median.
Model year matters too: 2015 units carry the lowest median at $46, while 2021 tops the table at $99. Parts from 2009–2016 are interchangeable, so if the 2015 fits your vehicle, it offers the best value across 8 compatible years.
Against comparable vehicles, the Audi A4 sits 22% below the Ford Mustang ($65), 20% below the Honda Civic ($64), and 22% below the Mercedes E Class ($65) for the same part. The “similar vehicles” cards below open each comparison guide.
Buying a used master cylinder: what to check
- Inspect rear piston seal for fluid leaks: Check the rear mounting flange for wet fluid leakage that damages power brake booster rubber diaphragms.
- Verify reservoir clarity and mounting grommets: Inspect the plastic fluid reservoir for sun-embrittled walls, cracks, or hardened rubber mounting grommets.
- Check brake line port thread types: Verify whether hydraulic output ports use metric bubble flares or inverted flare threads before connecting brake lines.
- Confirm fluid level sensor plug condition: Check the fluid level float switch connector for corrosion or broken locking tabs to avoid low-fluid dash warnings.
- Bench bleed before vehicle installation: Purge trapped air from internal piston chambers using a bench bleed kit before attaching vehicle brake lines.
Keep browsing this vehicle
What other Audi A4 parts are priced?
01wide ±253%
Transmission Control Module
$123median
$22$644
02wide ±208%
Air Bag
$159median
$40$700
03wide ±257%
Transmission
$598median
$120$3,193
04wide ±178%
Side Mirror
$343median
$55$1,275
05wide ±220%
Car Radio
$151median
$35$700
06wide ±180%
Steering Wheel
$204median
$65$799
07wide ±121%
Front Seat
$196median
$75$550
08wide ±164%
Wheels
$220median
$54$774
09wide ±196%
Strut
$95median
$40$412
10wide ±172%
Headlight Assembly
$1,151median
$182$4,144
11wide ±179%
Control Arm
$85median
$35$339
12wide ±177%
Tail Light
$200median
$35$743
Price comparisons
Compare Audi A4 master cylinder prices
Master Cylindercompare
FordMustangvsAudiA4
Mustang$65
A4$51
$14 diff2,572 listings
Master CylindercompareHondaCivicvsAudiA4
Civic$64
A4$51
$13 diff2,294 listings
Master CylindercompareMercedesEClassvsAudiA4
Class$65
A4$51
$14 diff2,223 listings
Master CylindercompareHyundaiElantravsAudiA4
Elantra$99
A4$51
$48 diff2,204 listings
Master CylindercompareNissanTitanvsAudiA4
Titan$245
A4$51
$194 diff1,837 listings
Master CylindercompareMercedesSClassvsAudiA4
Class$87
A4$51
$36 diff1,657 listings
Compare fitments
What do similar vehicles charge for this part?
Acurawide ±140%
Acura ILX
$75median
$25$235
Acurawide ±152%
Acura Integra
$99median
$35$335
Acurawide ±267%
Acura MDX
$99median
$25$554
Acurawide ±138%
Acura RDX
$99median
$25$299
Acurawide ±244%
Acura TLX
$100median
$25$513
Audiwide ±97%
Audi A6
$99median
$40$232
Audiwide ±65%
Audi Q3
$76median
$51$150
Audiwide ±95%
Audi Q5
$76median
$35$180
Audiwide ±138%
Audi Q7
$100median
$30$305
BMWwide ±179%
BMW 330i
$65median
$19$252
BMWwide ±159%
BMW 530i
$75median
$30$268
BMWwide ±280%
BMW M3
$100median
$19$578
Common questions
Audi A4 master cylinder FAQ
How much is a used master cylinder for a Audi A4?
The median asking price is $51 across 438 priced listings from 67 yards. Grade-A units, the cleanest stock, have a median of $51. 2015 is the cheapest model year we track, with a median of $46.
How much does it cost to replace a Audi A4 master cylinder?
Using a used part, a Audi A4 master cylinder replacement typically runs $195–$500 all-in: the median used master cylinder for this model lists at $51, and independent-shop labor for master cylinder replacement typically takes 1.5–3 hours at $95–$150/hr ($145–$450). The labor figure does not include brake fluid and full system bleed at all four wheels. Labor is a national part-level estimate, not a quote for your vehicle.
Which Audi A4 model years does this price guide cover?
This guide currently has year-level pricing for 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, 2015. Other model years contribute to the overall range where sellers listed them without a year breakdown.
Which Audi A4 master cylinder years are interchangeable?
Salvage-yard interchange data links Audi A4 master cylinder fitments across 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024. Searching all 16 years widens the pool of units; confirm the part number against your VIN, since trim or drivetrain can split an interchange group.