43
verified 2004 mercedes engines
2004 Used Mercedes Engines For Sale
43 verified 2004 Mercedes engines in stock, spanning nine model lines — the 203 Type C Class (C230, C240, C320), the 220 Type S Class and 230 Type SL, the 209 Type CLK, the 215 Type CL, the 211 Type E Class, the 163 Type ML, the 463 Type G, and the 170 Type SLK in its farewell season. Every unit is VIN-matched to your vehicle, compression-tested by ASE-certified technicians, photographed before shipment, and backed by up to a 3-year warranty plus 30-day money-back. Free freight nationwide.
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Compression-Tested & Verified
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Free Nationwide Shipping
Browse 2004 Mercedes by Model
Match your 2004 Mercedes engine by vehicle. Use the cards below to identify the right chassis Type code — in 2004 the Type matters more than the badge, and every unit is then VIN-matched at the order step.
2004 C Class
203 Type. C230 (Cpe/Sdn), C240 (Sdn/SW, RWD/AWD) and C320 (Cpe/Sdn/SW, RWD/AWD). Our largest 2004 group — body style and drivetrain both change the accessories.
2004 S Class
220 Type S430/S500/S55/S600 and 230 Type SL500/SL55/SL600 are both catalogued under this line. Trust the Type code, not the badge.
2004 Sl Class
Carries the identical seven-unit set as the S Class line (220 Type S-badged plus 230 Type SL-badged). The Type code is the honest key here, not the model name.
2004 Clk
209 Type. CLK320, CLK500 and the CLK55 AMG, each in Coupe and Convertible. Body style does not change the engine, but the badge does.
2004 Cl Class
215 Type. CL500, CL55 and CL600 — three distinct engines under one roof.
2004 E Class
211 Type. E320, E500 and the E55 AMG. In 2004 the E320 is gasoline only — the CDI diesel does not join the line until 2005.
2004 Ml Series
163 Type. ML350 and ML500. The 163 has two seasons left; the 164 does not arrive until 2006.
2004 Slk
170 Type. SLK230 and SLK320 — and 2004 is the last year of the 170. The 171 arrives for 2005 and does not interchange.
2004 G Class
463 Type. A single G500 — the naturally-aspirated G-Wagen V8, compression-tested and palletized.
Why Buy a 2004 Mercedes Engine from Auto Power Source
Every 2004 Mercedes engine we list is donor-pulled from a low-mileage vehicle, cataloged against its chassis Type code and VIN, and held in our climate-controlled warehouse pending sale. Each unit clears the same six-step inspection — VIN-matching, ASE testing, noise & smoke verification, full visual inspection, multi-angle photography, and palletized shipping.
Our ASE-certified technicians compression-test every cylinder and run a leak-down evaluation before a 2004 Mercedes engine is cleared for sale. You pay a fraction of dealer-new pricing for identical Mercedes engineering, ship free on a heavy-duty pallet anywhere in the continental U.S., and get up to a 3-year warranty plus 30-day money-back. 2004 is a farewell year for the 170 Type SLK, and the chassis Type code beats the badge every time. Text your VIN and we will confirm the match.
📱 Fastest way to match: text us your VIN, get options in minutes.Text Your VIN →
Your 2004 Mercedes Engine Options: Compared
Most 2004 Mercedes owners face four real choices when their engine fails:
← Swipe sideways to see all columns →
| Option |
Cost |
Reliability |
Warranty |
Fitment Match |
| Used OEM (this collection) |
$$$ Best Value |
High |
Up to 3 years |
VIN-matched |
| New OEM (dealer) |
$$$$$ 2-4× more |
High |
Manufacturer |
Exact |
| Aftermarket / Reman |
$$$$ |
Varies |
6-12 mo |
May adapt |
| Junkyard |
$ Cheapest |
Unknown |
None |
DIY |
Tested used OEM hits the sweet spot — same Mercedes engineering as new, fraction of the cost.
2004 Mercedes Engine Buying Guide
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Read the chassis Type code first. 2004 Mercedes engines are catalogued by Type — 203, 209, 211, 215, 220, 230, 463, 163, 170 — and the Type, not the model name, is what determines fit.
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Match body style on the C Class. The 203 Type C240 and C320 ship as Sedan, Coupe and Wagon, in RWD and AWD. The engine is common within a badge, but mounts, brackets and accessories follow the body and drivetrain.
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Mind the SLK generation hinge. 2004 is the last year of the 170 Type SLK (SLK230 supercharged four, SLK320 V6). The 171 arrives for 2005 with a different engine set — a unit from the wrong side of that split will not fit.
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Do not assume a diesel E320. In 2004 the 211 Type E320 is gasoline only — the E320 CDI diesel joins the line in 2005. A CDI unit is not a substitute for a 2004 E320.
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Treat AMG units as distinct. The 55 badge (CLK55, E55, S55, SL55, CL55) is a separate engine from the base V6 and V8 and never interchanges with it. Always run the donor VIN; we provide it on request.
Our ASE-certified technicians verify every one of these points against your VIN before any engine ships.
Frequently Asked Questions
What is the warranty on a 2004 Mercedes engine?
Up to 3 years, depending on the specific unit. The exact warranty term is listed on each product page.
What does compression-tested mean?
ASE-certified technicians compression-test every cylinder and run a leak-down evaluation before any 2004 Mercedes engine is cleared for sale.
How long until delivery?
Prep and ship time is 3-5 business days. Transit time is 2-3 business days via freight carrier after dispatch.
Can I see photos before I buy?
Yes. Multi-angle photos of the actual unit are sent for your approval before payment.
Do I need my VIN?
Strongly recommended. 2004 Mercedes engines split by chassis Type code (203, 209, 211, 215, 220, 230, 463, 163, 170), by badge, and by body style and drivetrain on the C Class. The VIN settles all of it.
What if I do not approve the photos?
Every dollar back — no restocking fees, no return freight charges.
Why is this cheaper than the dealer?
These are inventory-verified OEM units pulled from low-mileage donor vehicles, not new-manufacture parts. Same Mercedes engineering, a fraction of dealer-new pricing.
When can I reach customer service?
24h Monday through Saturday on 1-877-313-8995, or text your VIN any time and we reply with matched options.
46,000+
engines + transmissions shipped
0%
fitment-related returns
All 50
states covered, free freight
Excellent
Customer Reviews
rated on Trustpilot
Our 6-Step Inspection & Shipping Process
Every 2004 Mercedes engine we ship has been through these six steps:
1. VIN-MatchingWe match the donor VIN to your VIN to confirm engine code, emissions calibration, and drivetrain fit.
2. Tested & VerifiedASE-certified technicians compression-test every cylinder and run a leak-down evaluation on each engine.
3. Noise & Smoke VerificationUnits are run to verify normal mechanical sound and clean operation — catches wear static tests miss.
4. Visual InspectionEvery accessible component is inspected: turbos, manifolds, valve covers, accessories, sensor harnesses.
5. Photograph & CatalogMulti-angle photos sent to you BEFORE we ship, for your approval.
6. Palletize & ShipStrapped on a heavy-duty wooden pallet, shipped via freight at no charge.
What Our Customers Say
Rated Excellent by our customers on Trustpilot.
★★★★★
Transaction was perfect
"Found me the right engine at a great price. Got it in 2 days and installed the car the next day. Runs absolutely beautiful."
— Kevin Graham, 2026-04-29
★★★★★
Repeat customer
"AutoPowerSource is a great company. I've used them several times for used motors. Low mileage when other companies gave up."
— Curtis Haines, 2025-12-23
★★★★★
Highly recommend Mike
"Mike reached out first thing in the morning regarding my inquiry for a used engine. Very informative and helpful."
— Beatrice, 2026-03-31
★★★★★
Great experience
"Daisy kept me in the loop every step. My original engine was damaged before shipping; she found a different one quickly."
— Bryan Perkins, 2026-03-25
Our Photos-Before-Shipment Guarantee
Before any 2004 Mercedes engine leaves our warehouse, we send you multi-angle photographs. You approve. If you do not approve, you get every dollar back — no questions, no restocking fees, no return freight charges. On top of 30-day money-back and up to a 3-year warranty.
✉ Email Us at info@autopowersource.com
