For sale is a Mercedes-AMG M157 5.5-liter BiTurbo V8 engine, originally fitted in the Mercedes-AMG S63. This engine represents AMG’s transition to turbocharged performance, delivering massive torque and refined power for luxury performance vehicles.
The engine was removed from a donor vehicle and inspected prior to listing. It has approximately and remains in strong mechanical condition with normal wear consistent with mileage.
Performance & Reliability
The M157 AMG engine features:
• 5.5L twin-turbocharged V8 configuration
• Direct fuel injection system
• DOHC 32-valve cylinder heads
• Aluminum block and heads
• AMG performance engineering
Factory performance varies depending on model and package:
• Standard: ~518 hp / 516 lb-ft
• AMG Performance Package: up to 550 hp / 590 lb-ft
This engine is known for delivering massive low-end torque, smooth power delivery, and strong high-speed performance while maintaining AMG reliability.
Fitment
Fits in:
• Mercedes-AMG S63 (W221 / early W222)
• Mercedes-AMG CLS63 (W218)
• Mercedes-AMG E63 (W212)
• Mercedes-AMG ML63 / GL63
This engine is a direct OEM replacement for vehicles equipped with the M157 V8 platform.
Kit Includes
• Complete M157 5.5L V8 engine assembly
• Twin turbochargers
• Intake manifold
• Fuel system components
• Engine accessories (depending on availability)
Installation
Professional installation is recommended. During installation it is advisable to:
• Replace engine oil and filters
• Inspect turbo oil lines and cooling system
• Check ignition coils and spark plugs
• Perform ECU diagnostics and adaptation
Christopher Harris (verified owner) –
After installing this engine my car runs better than it ever did before. The power and smoothness are noticeable.
Alexander Evans (verified owner) –
Great engine with solid build quality. Installation was straightforward and it performs flawlessly on the road.
Joseph Allen (verified owner) –
Overall this engine is powerful reliable and a perfect replacement.
Levi Torres (verified owner) –
Very reliable engine. It runs smoothly and provides great acceleration when needed.
Jason Green (verified owner) –
I’m extremely satisfied with the power and efficiency of this engine.
Brian Nelson (verified owner) –
Very reliable engine. It runs smoothly and provides great acceleration when needed.
Dylan Rogers (verified owner) –
This engine brought my car back to life. It runs like new again.
Kevin Adams (verified owner) –
I’m extremely satisfied with this engine. It runs smoothly and gives my vehicle new life.
Nicholas Edwards (verified owner) –
I’m impressed by how quiet and efficient this engine is.
Noah Reed (verified owner) –
I noticed a huge improvement in acceleration after installing this engine.