OM651 955 Engine Long Block
2.1T diesel engine for Mercedes-Benz
A brand-new replacement long block, shipped worldwide by NANXI POWER from Zhengzhou, China.
- Inline engine, common rail direct injection
- 2.1T
- at 4200 rpm
- 120 kW
- at 1600–2400 rpm
- 360 N·m
- Condition
- Brand new
- Warranty
- 6 months
- Minimum order
- 1 unit
- Lead time
- 7–30 days
Fits A-Class (W176), B-Class (W246), C-Class (W204/W205), CLA-Class (C117), CLS-Class (C218) and E-Class (W212/C207/S212) and more, 2011 to present
Or email info@nanxipower.com
More Mercedes-Benz engines
All Mercedes-Benz engines
OM651 958 2.1T long blockMercedes-Benz, brand-newMOQ: 1 unit
OM654 920 2.0T long blockMercedes-Benz, brand-newMOQ: 1 unit
OM656 929 2.9T long blockMercedes-Benz, brand-newMOQ: 1 unit
272 939 3.0L long blockMercedes-Benz, remanufacturedMOQ: 1 unit
AMG M177 4.0T long blockMercedes-Benz, brand-newMOQ: 1 unit
M111 945 2.0L long blockMercedes-Benz, brand-newMOQ: 1 unit
M133 980 2.0T long blockMercedes-Benz, remanufacturedMOQ: 1 unit
M157 982 5.5T long blockMercedes-Benz, remanufacturedMOQ: 1 unit
M157 983 5.5T long blockMercedes-Benz, remanufacturedMOQ: 1 unit
M157 5.5T long blockMercedes-Benz, remanufacturedMOQ: 1 unitLooking for another engine? Send the engine code or your VIN and we will check what we can supply. Browse all engines

What is the OM651 955 engine?
The OM651 955 is a 2.1T diesel engine used by Mercedes-Benz: a turbocharged inline engine with common rail direct injection, a timing chain and a cast iron block.
NANXI POWER supplies it as a brand-new long block — the core engine you install with your existing intake, fuel and electrical parts.
- Compression ratio
- 16.2
- Bore × stroke
- 83.0 × 99.0 mm
- Timing drive
- Timing chain
- Emission standard
- Euro 5 / Euro 6 (China V)
Technical specifications
Engine
- Engine code
- OM651 955
- Brand
- Mercedes-Benz
- Displacement
- 2.1T
- Layout
- Inline Engine
- Drive
- Front-wheel Drive, Rear-wheel Drive, Front-engine Four-wheel Drive
- Max power
- 120 kW at 4200 rpm
- Max torque
- 360 N·m at 1600–2400 rpm
- Bore × stroke
- 83.0 × 99.0 mm
- Compression ratio
- 16.2
Build and supply
- Fuel
- Diesel
- Fuel system
- Common Rail Direct Injection
- Aspiration
- Turbocharged
- Timing
- Roller chain drive
- Cylinder block
- Cast Iron Cylinder Block
- Cylinder head
- Aluminum Cylinder Head
- Cooling
- Water-Cooled
- Emission standard
- Euro 5 / Euro 6 (China V)
- Production years
- 2011 to present
- Condition
- Brand new
- Supply form
- Engine long block
- Packing
- Non-fumigation wooden box
Reference OE numbers
- Long block
- B2BCONNECT
Which vehicles use the OM651 955?
The OM651 955 was fitted to these vehicles (2011 to present). Versions differ by market, so we check every order against your VIN before it ships.
- Mercedes-BenzA-Class (W176)
- Mercedes-BenzB-Class (W246)
- Mercedes-BenzC-Class (W204/W205)
- Mercedes-BenzCLA-Class (C117)
- Mercedes-BenzCLS-Class (C218)
- Mercedes-BenzE-Class (W212/C207/S212)
- Mercedes-BenzGLA-Class (X156)
- Mercedes-BenzGLC-Class (X253)
- Mercedes-BenzGLK-Class (X204)
- Mercedes-BenzM-Class (W166)
- Mercedes-BenzS-Class (W221/W222)
- Mercedes-BenzSLK-Class (R172)
Confirm the fit in three steps
- Check the engine codeFind "OM651 955" stamped on the cylinder block or shown on the engine label.
- Send your VINThe 17-digit VIN tells us the model year and market version of your vehicle.
- Add a few photosPhotos of the old engine's front, intake side and oil pan help us match mounts and connectors.
What's included in the long block
Included
- Cylinder block
- Crankshaft
- Pistons
- Connecting rods
- Cylinder head
- Valve train
- Timing system
- Valve cover
- Oil pan
Available on request
- Intake and exhaust manifolds
- Fuel injection pump and injectors
- Turbocharger and intercooler pipes
- Glow plugs and sensors
- Alternator, starter and A/C compressor
- Gasket and installation kit
Need more than a long block? List the parts in your inquiry and we will quote them together.
Tested before it ships
6 month warranty
Every OM651 955 is fully inspected before shipment and covered by a 6-month warranty written into your order. Before your engine leaves, you can ask for photos of:
- The OM651 955 engine code on the block
- Cylinder head and timing cover
- Oil pan and gearbox interface
- Final packing in the wooden case
- Engines inspected before shipment
- 100%
- Engineering drawings
- 288+
- Key fit clearances checked
- 155+
- Process standards
- 637+
Packed for export, shipped worldwide
Each long block is sealed, fixed to a pallet and packed in a non-fumigation wooden case, so it clears customs without extra treatment. NANXI POWER branded or neutral packing is available.
- Lead time
- 7–30 days
- Minimum order
- 1 unit
- Freight
- Sea, air or land
- Trade terms
- EXW, FOB, CIF, DDP
- Documents
- Invoice and packing list
Common questions
Which vehicles use the OM651 955 engine?
The OM651 955 is used in the A-Class (W176), B-Class (W246), C-Class (W204/W205), CLA-Class (C117), CLS-Class (C218), E-Class (W212/C207/S212), GLA-Class (X156) and GLC-Class (X253), produced 2011 to present. Versions differ by market, so send your VIN and we will check the exact version for your vehicle.
What are the main specifications of the OM651 955?
2.1T diesel, inline engine, 120 kW at 4200 rpm, 360 N·m at 1600–2400 rpm, timing chain, common rail direct injection.
Which OE numbers can I compare with the OM651 955?
Reference numbers for comparison: B2BCONNECT. They help you check the part, but we confirm the final match against your VIN, engine label and photos before the order.
Is the OM651 955 long block brand new or remanufactured?
It is supplied brand new. Every engine is inspected before shipment, and you can ask for photos before it leaves.
Is this OM651 955 a complete engine or a long block?
It is a long block: the assembled cylinder block and cylinder head with the crankshaft, pistons, connecting rods, valve train and timing system. Intake, fuel-system and electrical parts can be added to your quotation.
What warranty comes with the OM651 955 long block?
6 months. Coverage and conditions are written into your order.
Do I need to replace the timing chain when installing?
No. The long block is supplied with its timing chain already fitted. Fit new gaskets and check the cooling and fuel connections when you install it.
Can I order one engine, and how long does delivery take?
Yes, the minimum order is one unit. Orders usually ship within 7 to 30 days depending on quantity.
Which trade terms do you offer?
EXW, FOB, CIF and DDP. Tell us your destination port or address and we will quote the terms that suit your order.
About NANXI POWER
Zhengzhou Nanxi Engine Co., Ltd. has been in the engine business since 1998, supplying brand-new and remanufactured engines and long blocks to buyers in Russia, Central Asia, Africa, the Middle East, Europe and the Americas.
- In the engine business since
- 1998
- Engines supplied each year
- 50,000+
Get a quote for the OM651 955
Tell us the quantity and destination. Add your VIN if you would like us to confirm the fit.
Related engines
M260 920 2.0T long blockMercedes-Benz, brand-newMOQ: 1 unit
M264 915 1.5T long blockMercedes-Benz, brand-newMOQ: 1 unit
M264 920 2.0T long blockMercedes-Benz, remanufacturedMOQ: 1 unit
M270 910 1.6T long blockMercedes-Benz, brand-newMOQ: 1 unit
M271 860 1.8T long blockMercedes-Benz, brand-newMOQ: 1 unit
M272 911 2.5L long blockMercedes-Benz, remanufacturedMOQ: 1 unit
M272 920 2.5L long blockMercedes-Benz, remanufacturedMOQ: 1 unit
M272 921 2.5L long blockMercedes-Benz, remanufacturedMOQ: 1 unit
M272 922 2.5L long blockMercedes-Benz, remanufacturedMOQ: 1 unit
M272 923 2.5L long blockMercedes-Benz, remanufacturedMOQ: 1 unit