Used 2021 Mercedes S Class engine from a salvage yard

Year-specific price guide

Used 2021 Mercedes S Class Engine prices

Year-specific used engine pricing for the 2021 Mercedes S Class, built from real salvage yard and junkyard listings with condition grade and fitment detail.
SKWritten bySaurabh Kumar · Co-Founder & CTO
ASReviewed byAmbika Sharma · Co-Founder & COO
Last updatedOct 5, 2026

Part overview

About the 2021 Mercedes S Class engine

A used 2021 Mercedes S Class engine costs between $8,500 and $14,500, with a median of $10,904 from 28 salvage yard listings.

What the engine does, common failure signs, and prices across all vehicles: used engine price guide →

Also known asMotorEngine Assembly
Price summary

A used 2021 Mercedes S Class engine costs $8,500 to $14,500, with a median asking price of $10,904. Based on 28 priced salvage yard listings across the US, compatible across 2020–2022 (3 model years), updated Oct 5, 2026. Prices exclude shipping, core charges, and installation.

Grade A (excellent)$10,900

2021 Mercedes S Class engine price snapshot

USD
Low
$8,500
Average
$10,905
High
$14,500
33 listings observed · 28 priced listings used · last updated Oct 5, 2026· How we price·

Report incorrect price

Reporting price for 2021 Mercedes S Class Engine

Reason

Condition comparison

Price by part grade

Grade AClean / low wear$8,500–$14,50026 listings
Grade XUngraded$14,000–$14,0002 listings

Median by grade

Grade price comparison

Median asking price by seller-reported condition grade · $8,500–$14,500 overall range

Replacement cost

What is the 2021 Mercedes S Class engine replacement cost?

ESTIMATE
Used part
$10,904
2021 Mercedes S Class median asking price
Labor
$950–$3,000
10–20 hours at $95–$150/hr
Estimated total
$11,855–$13,905
median used part + labor

Labor is a typical independent-shop range for engine replacement, not a quote for your vehicle; it does not include fluids, gaskets, and any while-in-there parts like mounts or a clutch. The part price is the live median from the salvage-yard listings on this page. How we price

Fitment matters

Price by trim & variant

Year-specific context

How does the 2021 Mercedes S Class compare?

The 2021 guide is based on 33 observed listings, including 28 with posted prices. Its $10,904 median is 9% above the Mercedes S Class guide's $9,999 median.

Among the 9 model years with current price data, 2021 ranks #4 from lowest to highest median.

Interchange data shows this part is also listed under model years 2020, 2022. Shopping across all 3 compatible years may surface better prices or condition grades.

Pricing is not a fitment guarantee. Match the VIN, part number, engine or drivetrain, and seller-listed variant before ordering.

Compare model years

What does a Mercedes S Class engine cost in other years?

Keep browsing this vehicle

What other Mercedes S Class parts are priced?

01wide ±108%

AC Compressor

$250median
$80$620
02wide ±181%

ABS Module

$255median
$75$1,000
03wide ±198%

Air Bag

$225median
$50$940
04wide ±186%

Alternator

$202median
$36$788
05wide ±209%

Axle Shaft

$278median
$50$1,212
06wide ±136%

Blower Motor

$105median
$45$331
07wide ±259%

Brake Caliper

$280median
$50$1,499
08wide ±181%

Rear Bumper Assembly

$946median
$170$3,600
09wide ±190%

Front Bumper

$600median
$225$2,500
10wide ±137%

Rear Bumper

$550median
$150$1,655
11wide ±239%

Car Radio

$271median
$55$1,350
12wide ±171%

Center Console

$212median
$63$787
13wide ±189%

AC Condenser

$200median
$45$800
14wide ±222%

Control Arm

$180median
$50$849
15

Differential

Price data updating

16wide ±137%

Door Assembly

$998median
$250$2,975
17wide ±125%

Drive Shaft

$342median
$108$962
18wide ±229%

Engine Computer

$241median
$44$1,150
19wide ±133%

Exhaust Manifold

$250median
$79$742
20wide ±145%

Fender

$475median
$122$1,499
21wide ±70%

Fog Light

$242median
$70$410
22wide ±246%

Front Seat

$402median
$90$2,070
23wide ±182%

Fuel Pump

$150median
$33$580
24wide ±176%

Fuel Tank

$340median
$125$1,324
25wide ±252%

Grille

$300median
$50$1,560
26wide ±118%

Headlight Assembly

$1,450median
$425$3,850
27wide ±207%

Heater Core

$116median
$60$540
28wide ±99%

Hood

$1,000median
$215$2,185
29wide ±175%

Ignition Switch

$100median
$35$384
30

Instrument Cluster

Price data updating

31wide ±135%

Intake Manifold

$181median
$35$525
32wide ±75%

Master Cylinder

$87median
$45$175
33wide ±116%

Side Mirror

$600median
$210$1,599
34tight ±15%

Power Steering Pump

$831median
$630$887
35wide ±87%

Quarter Panel

$777median
$340$1,685
36wide ±166%

Radiator

$200median
$55$720
37wide ±190%

Rear View Mirror

$119median
$40$493
38wide ±148%

Starter

$125median
$30$400
39wide ±139%

Steering Column

$225median
$75$699
40wide ±129%

Steering Rack

$950median
$300$2,750
41wide ±149%

Steering Wheel

$610median
$150$1,973
42wide ±203%

Strut

$350median
$78$1,500
43wide ±216%

Sunroof

$660median
$150$2,999
44wide ±86%

Tail Light

$406median
$175$872
45wide ±243%

Tailgate

$560median
$100$2,825
46wide ±189%

Throttle Body

$120median
$39$493
47spread ±40%

Torque Converter

$755median
$299$909
48wide ±77%

Transfer Case

$590median
$293$1,200
49wide ±226%

Transmission

$1,799median
$305$8,444
50wide ±269%

Transmission Control Module

$135median
$25$750
51wide ±256%

Turbocharger

$450median
$90$2,398
52wide ±174%

Water Pump

$150median
$25$546
53wide ±134%

Wheels

$475median
$125$1,400
54wide ±112%

Window Regulator

$199median
$50$495

Common questions

2021 Mercedes S Class engine FAQ

How much is a used 2021 Mercedes S Class engine?

Based on 28 priced salvage-yard listings, a used 2021 Mercedes S Class engine lists between $8,500 and $14,500, with a median asking price of $10,904.

How much does it cost to replace a 2021 Mercedes S Class engine?

Using a used part, a 2021 Mercedes S Class engine replacement typically runs $11,855–$13,905 all-in: the median used engine for this year lists at $10,904, and independent-shop labor for engine replacement typically takes 10–20 hours at $95–$150/hr ($950–$3,000). The labor figure does not include fluids, gaskets, and any while-in-there parts like mounts or a clutch. Labor is a national part-level estimate, not a quote for your vehicle.

Will a 2021 Mercedes S Class engine fit another year?

Based on salvage-yard interchange data, listings for the 2021 Mercedes S Class engine also appear under model years 2020, 2022, suggesting these years share compatible fitments. Always verify the exact part number, drivetrain, trim, and your VIN before buying — interchange compatibility can vary by variant.

How much is a 2021 Mercedes S Class motor?

A motor is another name for a engine. The prices on this page cover the 2021 Mercedes S Class engine — median $10,904, from 28 listings.

2021 Mercedes S Class Engine Cost — Used From $8,500 to $14,500