Vehicle price comparison
Mercedes S Class vs Kia Optima Radiator 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 radiator cost more?
A used Mercedes S Class radiator carries a median asking price of $200, which is 82% higher than the Kia Optima at $110. Supply also plays a role: Mercedes S Class has 5,325 priced listings versus 1,442 for Kia Optima, and more listings generally mean more choices and more competitive pricing.
The Kia Optima average ($136) runs 24% above its median ($110), 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 (2015–2024) but only 6 for the Kia Optima (2015–2020), so the Mercedes S Class data reflects a broader range of generations.
The Mercedes S Class radiator is interchangeable across 15 model years versus just 10 for the Kia Optima — that wider compatibility window means more donor vehicles in salvage yards and tends to push prices lower.
At Grade A (excellent) condition, the Kia Optima is 40% cheaper ($117 vs $195) — the gap widens compared to the overall median difference.
Buyer's checklist
What to check before buying a used radiator
- Inspect for bent or crushed fins — minor cosmetic bending is OK, but large crushed sections reduce cooling capacity.
- Check both tanks (top and bottom) for cracks, especially along the crimped seams on plastic-tank radiators.
- Confirm the inlet/outlet positions and sizes match — some models moved ports between model years.
- Look for internal blockage: shake the unit and listen for debris, or flush it with a garden hose before installing.
Full price guide
Mercedes S Class Radiator
$55 – $720 · 5,325 listings
Full price guide
Kia Optima Radiator
$35 – $500 · 1,442 listings
Common questions
Mercedes S Class vs Kia Optima radiator FAQ
Is a used Mercedes S Class radiator cheaper than a Kia Optima?
Kia Optima has the lower median by $90 (82%). The Kia Optima radiator ranges from $35 to $500 across 1,442 listings, while the Mercedes S Class ranges from $55 to $720 across 5,325 listings.
Can I use a Mercedes S Class radiator 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 5,325 priced Mercedes S Class listings and 1,442 priced Kia Optima listings — 6,767 in total.
How does condition grade affect the price?
Part condition significantly impacts price. Grade A (Excellent): Mercedes S Class $195 vs Kia Optima $117. Grade B (Good): Mercedes S Class $132 vs Kia Optima $105. Grade C (Fair): Mercedes S Class $75 vs Kia Optima $85. 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 radiator has 2 trim variants and the Kia Optima has 5. Variants differ by engine size, drivetrain, or part number — matching the right variant is critical for proper fitment.
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