M278 955 Engine Long Block
4.7T gasoline engine for Mercedes-Benz
A brand-new replacement long block, shipped worldwide by NANXI POWER from Zhengzhou, China.
- V8, direct injection
- 4.7T
- at 5250 rpm
- 320 kW
- at 1800–3500 rpm
- 700 N·m
- Condition
- Brand new
- Warranty
- 12 months
- Minimum order
- 1 unit
- Lead time
- 7–30 days
Fits S-Class (W221/W222), CL-Class (C216), CLS-Class (C218), E-Class (W212/A207/C207), GL-Class/GLS-Class (X166) and ML-Class/GLE-Class (W166) and more, 2010–2020
Or email info@nanxipower.com
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What is the M278 955 engine?
The M278 955 is a 4.7T gasoline engine used by Mercedes-Benz: a twin-turbocharged V8 with direct injection, a timing chain and an aluminium 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
- 10.5
- Bore × stroke
- 92.9 × 86.0 mm
- Timing drive
- Timing chain
- Emission standard
- Euro 5 / Euro 6 (China V)
Technical specifications
Engine
- Engine code
- M278 955
- Brand
- Mercedes-Benz
- Displacement
- 4.7T
- Layout
- V-type 8-cylinder engine
- Drive
- Rear-wheel Drive, Full-time Four-wheel Drive
- Max power
- 320 kW at 5250 rpm
- Max torque
- 700 N·m at 1800–3500 rpm
- Bore × stroke
- 92.9 × 86.0 mm
- Compression ratio
- 10.5
Build and supply
- Fuel
- Gasoline
- Fuel system
- Direct Injection
- Aspiration
- Two-stage turbocharging
- Timing
- Timing Chain System
- Cylinder block
- Aluminum Cylinder Block
- Cylinder head
- Aluminum Cylinder Head
- Cooling
- Water-Cooled
- Emission standard
- Euro 5 / Euro 6 (China V)
- Production years
- 2010–2020
- Condition
- Brand new
- Supply form
- Engine long block
- Packing
- Non-fumigation wooden box
Which vehicles use the M278 955?
The M278 955 was fitted to these vehicles (2010–2020). Versions differ by market, so we check every order against your VIN before it ships.
- Mercedes-BenzS-Class (W221/W222)
- Mercedes-BenzCL-Class (C216)
- Mercedes-BenzCLS-Class (C218)
- Mercedes-BenzE-Class (W212/A207/C207)
- Mercedes-BenzGL-Class/GLS-Class (X166)
- Mercedes-BenzML-Class/GLE-Class (W166)
- Mercedes-BenzGLE Coupe (C292)
- Mercedes-BenzSL-Class (R231)
Confirm the fit in three steps
- Check the engine codeFind "M278 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
- High-pressure fuel pump and injectors
- Turbocharger and intercooler pipes
- Ignition coils 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
12 month warranty
Every M278 955 is fully inspected before shipment and covered by a 12-month warranty written into your order. Before your engine leaves, you can ask for photos of:
- The M278 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 M278 955 engine?
The M278 955 is used in the S-Class (W221/W222), CL-Class (C216), CLS-Class (C218), E-Class (W212/A207/C207), GL-Class/GLS-Class (X166), ML-Class/GLE-Class (W166), GLE Coupe (C292) and SL-Class (R231), produced 2010 to 2020. 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 M278 955?
4.7T gasoline, V8, 320 kW at 5250 rpm, 700 N·m at 1800–3500 rpm, timing chain, direct injection.
Is the M278 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 M278 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 M278 955 long block?
12 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 M278 955
Tell us the quantity and destination. Add your VIN if you would like us to confirm the fit.
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