Vehicle price comparison
Mercedes S Class vs Cadillac XT4 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 36% higher than the Cadillac XT4 at $110. Supply also plays a role: Mercedes S Class has 4,953 priced listings versus 691 for Cadillac XT4, 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 70% for the Cadillac XT4, so buyers looking for top-condition units will find more options on the Mercedes S Class side.
The Cadillac XT4 average ($135) runs 23% 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 (2015–2023) but only 7 for the Cadillac XT4 (2019–2025), so the Mercedes S Class data reflects a broader range of generations.
The Mercedes S Class fuel pump is interchangeable across 12 model years versus just 7 for the Cadillac XT4 — that wider compatibility window means more donor vehicles in salvage yards and tends to push prices lower.
At Grade A (excellent) condition, the Cadillac XT4 is 27% cheaper ($110 vs $150) — the gap narrows 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
Cadillac XT4 Fuel Pump
$45 – $325 · 691 listings
Common questions
Mercedes S Class vs Cadillac XT4 fuel pump FAQ
Is a used Mercedes S Class fuel pump cheaper than a Cadillac XT4?
Cadillac XT4 has the lower median by $40 (36%). The Cadillac XT4 fuel pump ranges from $45 to $325 across 691 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 Cadillac XT4?
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 691 priced Cadillac XT4 listings — 5,644 in total.
How does condition grade affect the price?
Part condition significantly impacts price. Grade A (Excellent): Mercedes S Class $150 vs Cadillac XT4 $110. Grade B (Good): Mercedes S Class $113 vs Cadillac XT4 $110. 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 Cadillac XT4 has 2. Variants differ by engine size, drivetrain, or part number — matching the right variant is critical for proper fitment.
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