Vehicle price comparison
Mercedes E Class vs Buick Regal Engine 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 E Class engine cost more?
A used Mercedes E Class engine carries a median asking price of $5,038, which is 180% higher than the Buick Regal at $1,801. Supply also plays a role: Mercedes E Class has 2,466 priced listings versus 969 for Buick Regal, and more listings generally mean more choices and more competitive pricing.
The Mercedes E Class average ($6,137) runs 22% above its median ($5,038), indicating a tail of high-priced listings — likely low-mileage or remanufactured units pulling the average up.
Our guide covers 10 model years for the Mercedes E Class (2015–2024) but only 6 for the Buick Regal (2015–2020), so the Mercedes E Class data reflects a broader range of generations.
At Grade A (excellent) condition, the Buick Regal is 63% cheaper ($1,875 vs $5,045) — the gap widens compared to the overall median difference.
Buyer's checklist
What to check before buying a used engine
- Confirm the VIN-matched engine code — the same model can use different engines across trims and years.
- Ask for the mileage on the donor vehicle. Under 80K miles is ideal; over 120K usually needs a compression test.
- Look for signs of overheating: warped heads, milky oil on the dipstick or filler cap, and coolant residue around the head gaskets.
- Check whether accessories (alternator, A/C compressor, power steering pump) are included or if you need to swap yours over.
Full price guide
Mercedes E Class Engine
$990 – $20,786 · 2,466 listings
Full price guide
Buick Regal Engine
$600 – $4,240 · 969 listings
Common questions
Mercedes E Class vs Buick Regal engine FAQ
Is a used Mercedes E Class engine cheaper than a Buick Regal?
Buick Regal has the lower median by $3,237 (180%). The Buick Regal engine ranges from $600 to $4,240 across 969 listings, while the Mercedes E Class ranges from $990 to $20,786 across 2,466 listings.
Can I use a Mercedes E Class engine 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 2,466 priced Mercedes E Class listings and 969 priced Buick Regal listings — 3,435 in total.
How does condition grade affect the price?
Part condition significantly impacts price. Grade A (Excellent): Mercedes E Class $5,045 vs Buick Regal $1,875. Grade B (Good): Mercedes E Class $8,077 vs Buick Regal $1,070. Grade C (Fair): Mercedes E Class $2,938 vs Buick Regal $1,401. 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 E Class engine has 2 trim variants and the Buick Regal has 3. Variants differ by engine size, drivetrain, or part number — matching the right variant is critical for proper fitment.
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