Vehicle price comparison
Ford Mustang vs Audi A4 Master Cylinder prices
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.
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.
Price face-off
Median price comparison
Condition comparison
How does the price differ by part grade?
Market analysis
Why does the Ford Mustang master cylinder cost more?
A used Ford Mustang master cylinder carries a median asking price of $65, which is 27% higher than the Audi A4 at $51. Supply also plays a role: Ford Mustang has 2,134 priced listings versus 438 for Audi A4, and more listings generally mean more choices and more competitive pricing.
The Ford Mustang average ($106) runs 63% above its median ($65), indicating a tail of high-priced listings — likely low-mileage or remanufactured units pulling the average up.
The Audi A4 master cylinder is interchangeable across 16 model years versus just 11 for the Ford Mustang — that wider compatibility window means more donor vehicles in salvage yards and tends to push prices lower.
At Grade B (good) condition, the Audi A4 is 39% cheaper ($99 vs $162) — the gap widens compared to the overall median difference.
Buyer's checklist
What to check before buying a used brake master cylinder
- Verify reservoir port style, fluid level sensor connector pin count, and brake line flare port sizes and locations (metric vs imperial threads).
- Check bore size specifications, as vehicles equipped with heavy-duty tow packages or larger brake calipers use larger diameter master cylinder bores.
- Inspect primary and secondary piston bore seals for internal bypass leaks, fluid weeping at the brake booster mounting flange, or dark sludge build-up.
- Confirm whether the unit is designed for vacuum-assisted, hydro-boost, or electro-hydraulic brake systems.
Full price guide
Ford Mustang Master Cylinder
$20 – $381 · 2,134 listings
Full price guide
Audi A4 Master Cylinder
$30 – $247 · 438 listings
Common questions
Ford Mustang vs Audi A4 master cylinder FAQ
Is a used Ford Mustang master cylinder cheaper than a Audi A4?
Audi A4 has the lower median by $14 (27%). The Audi A4 master cylinder ranges from $30 to $247 across 438 listings, while the Ford Mustang ranges from $20 to $381 across 2,134 listings.
Can I use a Ford Mustang master cylinder in a Audi A4?
This comparison describes pricing, not interchangeability. Even when two parts share similar prices, they may require different engines, trims, electronics, or mounting points. Always match the seller's part number against your VIN before purchasing.
How many listings does this comparison cover?
This comparison draws from 2,134 priced Ford Mustang listings and 438 priced Audi A4 listings — 2,572 in total.
How does condition grade affect the price?
Part condition significantly impacts price. Grade A (Excellent): Ford Mustang $60 vs Audi A4 $51. Grade B (Good): Ford Mustang $162 vs Audi A4 $99. Grade A parts are in excellent condition, B is good, and C is fair — always confirm grading criteria with the seller.
Are there different trim variants to choose from?
Yes. The Ford Mustang master cylinder has 2 trim variants and the Audi A4 has 0. Variants differ by engine size, drivetrain, or part number — matching the right variant is critical for proper fitment.
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