Vehicle price comparison
Mercedes S Class vs Infiniti Q50 Water Pump 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 Mercedes S Class water pump cost more?
A used Mercedes S Class water pump carries a median asking price of $150, which is 30% higher than the Infiniti Q50 at $115. Supply also plays a role: Mercedes S Class has 4,935 priced listings versus 275 for Infiniti Q50, and more listings generally mean more choices and more competitive pricing.
Grade A (excellent condition) parts make up 89% of Mercedes S Class listings compared to 61% for the Infiniti Q50, so buyers looking for top-condition units will find more options on the Mercedes S Class side.
The Infiniti Q50 average ($160) runs 39% above its median ($115), indicating a tail of high-priced listings — likely low-mileage or remanufactured units pulling the average up.
Only 38% of Infiniti Q50 water pump listings include a posted price (275 of 719 observed) — the rest are "call for price," which usually signals negotiable or higher-than-average pricing.
At Grade A (excellent) condition, the Infiniti Q50 is 29% cheaper ($115 vs $161) — the gap narrows compared to the overall median difference.
Buyer's checklist
What to check before buying a used water pump
- Spin the pump pulley flange by hand to check for smooth bearing operation, grinding noise, or shaft play (a new pump is usually recommended due to low cost).
- Inspect the weep hole on the pump body for blue/green coolant residue, crusty mineral buildup, or active leakage signs.
- Check impeller vanes (plastic vs stamped steel vs cast iron) for corrosion, missing fins, or detachment from the shaft.
- Verify housing bolt patterns, thermostat housing integration, and belt pulley hub offset relative to engine accessory drives.
Full price guide
Mercedes S Class Water Pump
$25 – $546 · 4,935 listings
Full price guide
Infiniti Q50 Water Pump
$30 – $640 · 275 listings
Common questions
Mercedes S Class vs Infiniti Q50 water pump FAQ
Is a used Mercedes S Class water pump cheaper than a Infiniti Q50?
Infiniti Q50 has the lower median by $35 (30%). The Infiniti Q50 water pump ranges from $30 to $640 across 275 listings, while the Mercedes S Class ranges from $25 to $546 across 4,935 listings.
Can I use a Mercedes S Class water pump in a Infiniti Q50?
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 4,935 priced Mercedes S Class listings and 275 priced Infiniti Q50 listings — 5,210 in total.
How does condition grade affect the price?
Part condition significantly impacts price. Grade A (Excellent): Mercedes S Class $161 vs Infiniti Q50 $115. Grade B (Good): Mercedes S Class $205 vs Infiniti Q50 $115. Grade C (Fair): Mercedes S Class $85 vs Infiniti Q50 $115. 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 Mercedes S Class water pump has 1 trim variant and the Infiniti Q50 has 2. Variants differ by engine size, drivetrain, or part number — matching the right variant is critical for proper fitment.
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