Brand-new, genuine Mercedes-Benz OM651.912 (aka 651.912) diesel engine — complete factory unit suitable for GLK X204 4MATIC applications. OEM quality, unused stock, ideal for direct replacement or professional rebuild projects.
Product details
Engine family / code: OM651.912 / 651.912 (Mercedes-Benz 4-cylinder diesel)
Condition: New (factory stock / unused)
Application: Mercedes GLK X204 — 4MATIC all-wheel drive compatible (verify VIN)
Scope: Complete engine assembly as supplied from factory stock. Confirm ancillaries included (turbo, alternator, starter, injectors, sensors, flywheel/driveplate, wiring stubs) with seller prior to purchase.
Key features & benefits
OEM fit & function — correct mounts, sensor locations and injection system for plug-in compatibility.
Factory new condition — minimal risk of hidden wear versus used units.
Maintains emissions, fuel mapping, and vehicle value.
Ideal for fast, reliable replacement without the unknowns of rebuilt cores.
Compatibility & fitment
Intended for GLK X204 models using the OM651.912 engine and 4MATIC driveline.
Always provide your VIN for definitive parts cross-check before ordering — small sub-variant differences can affect ancillaries and ECU matching.
Installation & technical notes
Professional installation required. Engine installation typically requires: correct flywheel/torque-converter matching, motor mounts, coolant/oil lines, ECU/TCU configuration and immobilizer/VIN coding where applicable.
Replace consumables (oil, coolant, filters) on initial service.
Verify turbo/intercooler plumbing, emissions sensors and DPF/AdBlue system compatibility if fitted on the recipient vehicle.
After installation run full system checks and perform any required dealer-level adaptations or software flashes.5800








Hunter Gray (verified owner) –
This engine has been running perfectly since installation. Smooth idle and strong acceleration.
Adam Mitchell (verified owner) –
I’m very impressed with the performance of this engine. It starts quickly and runs quietly while delivering consistent power.
Nicholas Edwards (verified owner) –
My vehicle now runs much smoother with this engine installed. It delivers consistent power every time.
Thomas King (verified owner) –
The installation was simple and the engine has been performing flawlessly ever since.
Evan James (verified owner) –
Smooth idle and powerful acceleration make this engine a great choice.
Levi Torres (verified owner) –
My vehicle now runs much smoother with this engine installed. It delivers consistent power every time.
Henry Rivera (verified owner) –
Excellent engine replacement. The vehicle now drives like it’s brand new again.
Luke Cox (verified owner) –
This engine brought my car back to life. It runs like new again.
Matthew Robinson (verified owner) –
Great engine upgrade. The vehicle now accelerates faster and runs more efficiently.
Nathan Perez (verified owner) –
Excellent engine with great durability. It runs perfectly every day.