Vehicle price comparison
Mercedes S Class vs Kia Optima Fuel 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 fuel pump cost more?
A used Mercedes S Class fuel pump carries a median asking price of $150, which is 50% higher than the Kia Optima at $100. Supply also plays a role: Mercedes S Class has 4,953 priced listings versus 2,094 for Kia Optima, 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 69% for the Kia Optima, so buyers looking for top-condition units will find more options on the Mercedes S Class side.
The Kia Optima average ($118) runs 18% above its median ($100), indicating a tail of high-priced listings — likely low-mileage or remanufactured units pulling the average up.
Our guide covers 9 model years for the Mercedes S Class (2015–2023) but only 6 for the Kia Optima (2015–2020), so the Mercedes S Class data reflects a broader range of generations.
Only 65% of Kia Optima fuel pump listings include a posted price (2,094 of 3,202 observed) — the rest are "call for price," which usually signals negotiable or higher-than-average pricing.
At Grade A (excellent) condition, the Kia Optima is 33% cheaper ($100 vs $150) — the gap widens compared to the overall median difference.
Buyer's checklist
What to check before buying a used fuel pump
- Match pump assembly module numbers, tank lock ring style, and quick-connect fuel line fitting diameters and counts (feed, return, and vapor lines).
- Check electrical connector pins for signs of heat scorching or melting, which indicates high current draw from an overheating motor.
- Inspect fuel level sender float arm and resistor wiper board for wear or corrosion that causes inaccurate gas gauge readings.
- Confirm whether the donor vehicle ran on standard gasoline, flex-fuel (E85), or diesel, as internal pump materials and flow rates vary accordingly.
Full price guide
Mercedes S Class Fuel Pump
$33 – $580 · 4,953 listings
Full price guide
Kia Optima Fuel Pump
$30 – $350 · 2,094 listings
Common questions
Mercedes S Class vs Kia Optima fuel pump FAQ
Is a used Mercedes S Class fuel pump cheaper than a Kia Optima?
Kia Optima has the lower median by $50 (50%). The Kia Optima fuel pump ranges from $30 to $350 across 2,094 listings, while the Mercedes S Class ranges from $33 to $580 across 4,953 listings.
Can I use a Mercedes S Class fuel pump in a Kia Optima?
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 4,953 priced Mercedes S Class listings and 2,094 priced Kia Optima listings — 7,047 in total.
How does condition grade affect the price?
Part condition significantly impacts price. Grade A (Excellent): Mercedes S Class $150 vs Kia Optima $100. Grade B (Good): Mercedes S Class $113 vs Kia Optima $100. Grade C (Fair): Mercedes S Class $199 vs Kia Optima $75. 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 fuel pump has 2 trim variants and the Kia Optima has 8. Variants differ by engine size, drivetrain, or part number — matching the right variant is critical for proper fitment.
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