Vehicle price comparison
Mercedes S Class vs Buick Regal 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 Buick Regal master cylinder cost more?
A used Buick Regal master cylinder carries a median asking price of $99, which is 12% higher than the Mercedes S Class at $87. Supply also plays a role: Mercedes S Class has 1,219 priced listings versus 212 for Buick Regal, and more listings generally mean more choices and more competitive pricing.
Our guide covers 9 model years for the Mercedes S Class (2015–2024) but only 6 for the Buick Regal (2015–2020), so the Mercedes S Class data reflects a broader range of generations.
Only 65% of Mercedes S Class master cylinder listings include a posted price (1,219 of 1,881 observed) — the rest are "call for price," which usually signals negotiable or higher-than-average pricing.
The Mercedes S Class master cylinder is interchangeable across 15 model years versus just 10 for the Buick Regal — that wider compatibility window means more donor vehicles in salvage yards and tends to push prices lower.
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
Mercedes S Class Master Cylinder
$45 – $175 · 1,219 listings
Full price guide
Buick Regal Master Cylinder
$20 – $331 · 212 listings
Common questions
Mercedes S Class vs Buick Regal master cylinder FAQ
Is a used Mercedes S Class master cylinder cheaper than a Buick Regal?
Mercedes S Class has the lower median by $12 (12%). The Mercedes S Class master cylinder ranges from $45 to $175 across 1,219 listings, while the Buick Regal ranges from $20 to $331 across 212 listings.
Can I use a Mercedes S Class master cylinder in a Buick Regal?
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 1,219 priced Mercedes S Class listings and 212 priced Buick Regal listings — 1,431 in total.
How does condition grade affect the price?
Part condition significantly impacts price. Grade A (Excellent): Mercedes S Class $99 vs Buick Regal $99. Grade B (Good): Mercedes S Class $100 vs Buick Regal $99. Grade C (Fair): Mercedes S Class $76 vs Buick Regal $40. Grade A parts are in excellent condition, B is good, and C is fair — always confirm grading criteria with the seller.
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