Home › Browse Parts › 2012 MERCEDES ML350 (W166) 3.0L DIESEL OM642 ENGINE CRANKSHAFT CRANK SHAFT

6 detailed photos of the actual item — this exact part is what ships.

From donor vehicle 2012 Mercedes ML350 (stock AA1246).

ASE Master Mechanic Inspection

Hands-on tested before listing by MKF on January 10, 2024

Start quality
GOOD
Idle quality
VERY GOOD
Output under load
VERY GOOD
Oil quality
YES
Smoke from tailpipes
NONE
Unusual engine noise
NONE
Turbo notes
TURBO SOUNDS GOOD

In-car test: ENGINE RUNS GREAT. MAKES PLENTY OF POWER AND HAS A NICE SMOOTH IDLE. WILL BE A KEEP IF COMPRESSION NUMBERS LOOK GOOD.

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2012 Mercedes ML350

2012 MERCEDES ML350 (W166) 3.0L DIESEL OM642 ENGINE CRANKSHAFT CRANK SHAFT

$529.43 List $557.29
✓ FREE SHIPPING — LOWER 48 + DC

Free 90-day warranty & 90-day any-reason returns on everything.

Order now and your order ships tomorrow — same-day shipping when ordered by 11 AM Pacific on a business day.

Estimated arrival: Monday, October 19 to Friday, October 23 — it's common for this to vary by a day or two.

Genuine OEM — exact item pictured. The photos show the actual factory-original part you’ll receive — inspected, cleaned, and carefully packed.

What you see is exactly what you get

No stock photos, ever. Every listing shows the actual part that will ship to you — already pulled and cleaned — so you can confirm it's exactly what you need, in the condition you expect, before you buy. All backed by a free 90-day warranty and hassle-free returns.

Free 90-day warranty + hassle-free returns

Wrong part? Changed your mind? For eligible lower-48 + DC orders, returns are on us for ANY reason — hit the Contact Viking button for a prepaid label. Refunds are always cash to your payment method, never store credit.

Same-business-day shipping

We ship same business day if ordered before 11 AM Pacific — every part is already pulled, cleaned, and on the shelf, not buried in a car in the yard.

Free shipping (lower 48 + DC)

For eligible destinations, the checkout math stays calm: the listed direct price is the price that ships.

ASE-tested big stuff

Engines and transmissions are tested by our ASE Master Mechanic before listing.

Viking Item ID 147006

Does this fit my vehicle?

Paste your 17-character VIN — it’s on your registration, insurance card, or the driver’s-door jamb.

We verify factory/OEM fitment only — upgrades, retrofits, and custom applications may need parts or coding we can’t verify or guarantee.

Item Specifics

Donor vehicle
2012 Mercedes ML350
Donor VIN
4JGDA2EB0CA020537
Donor miles
153,178
Part number (OEM)
6420302601
Interchange #
300-85093
Brand
Mercedes (Genuine OEM)
Stock #
AA1246
Viking Item ID
147006

3.0LTD, 642.826, CRANKSHAFT | 6420302601

First-start note: we treat every engine with fogging oil to protect the cylinders in storage and transit. A little smoke on first start-up is normal and expected — it should clear within about 30 minutes of normal running as the fogging oil burns off.

  • ✓These photos show the exact individual part you'll receive — no stock photos
  • ✓Genuine OEM — factory-original parts
  • ✓Inspected before listing — engines & transmissions tested by an ASE Master Mechanic
  • ✓FREE 90-day warranty & 90-day any-reason returns — we cover return shipping for eligible lower-48 + DC orders, freight included (details)
  • ✓Order by 11 AM Pacific on a business day — ships that same day (holidays excluded)
  • ✓Want longer coverage? Extended warranties up to 365 days — see options
Ask about this part / verify fitment — free, no pressure

Compatible Vehicles (2)

Verified Hollander interchange fitment — the same stickered, tracked compatibility data our listing crew uses. Scroll inside the table; no page-flipping. Not sure? Use the VIN check above and we’ll confirm.

YearMakeModelTrimEngineNotes
2012 Mercedes-Benz ML350 4Matic Sport Utility 4-Door 3.5L 3498CC V6 FLEX DOHC Naturally Aspirated Diesel
2012 Mercedes-Benz ML350 Bluetec 4Matic Sport Utility 4-Door 3.0L 2987CC V6 DIESEL DOHC Turbocharged Diesel