Vehicle price comparison
Mercedes S Class vs GMC Terrain 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 200% higher than the GMC Terrain at $50. Supply also plays a role: Mercedes S Class has 4,935 priced listings versus 584 for GMC Terrain, 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 73% for the GMC Terrain, so buyers looking for top-condition units will find more options on the Mercedes S Class side.
The GMC Terrain average ($60) runs 20% above its median ($50), indicating a tail of high-priced listings — likely low-mileage or remanufactured units pulling the average up.
Only 50% of GMC Terrain water pump listings include a posted price (584 of 1,160 observed) — the rest are "call for price," which usually signals negotiable or higher-than-average pricing.
The GMC Terrain water pump is interchangeable across 26 model years versus just 14 for the Mercedes S Class — that wider compatibility window means more donor vehicles in salvage yards and tends to push prices lower.
At Grade A (excellent) condition, the GMC Terrain is 69% cheaper ($50 vs $161) — the gap widens 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
GMC Terrain Water Pump
$24 – $157 · 584 listings
Common questions
Mercedes S Class vs GMC Terrain water pump FAQ
Is a used Mercedes S Class water pump cheaper than a GMC Terrain?
GMC Terrain has the lower median by $100 (200%). The GMC Terrain water pump ranges from $24 to $157 across 584 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 GMC Terrain?
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 584 priced GMC Terrain listings — 5,519 in total.
How does condition grade affect the price?
Part condition significantly impacts price. Grade A (Excellent): Mercedes S Class $161 vs GMC Terrain $50. Grade B (Good): Mercedes S Class $205 vs GMC Terrain $60. Grade C (Fair): Mercedes S Class $85 vs GMC Terrain $42. 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 GMC Terrain has 2. Variants differ by engine size, drivetrain, or part number — matching the right variant is critical for proper fitment.
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