Mercedes-AMG M104.931 3.6L Inline-6 Petrol Engine For Sale

Mercedes-AMG M104.931 3.6L Inline-6 Petrol Engine.

Premium Replacement Modern, used engine For Sale.

The Mercedes-AMG M104.931 3.6L Inline-6 Petrol Engine will be offered as a legendary high-performance power unit developed during AMG’s pre-merger era, when engines were hand-built and individually tuned for maximum output and durability. 

Known for its smooth delivery, racing-inspired engineering, and exceptional build quality, this naturally aspirated AMG inline-six will be highly desirable for collectors, restorers, and enthusiasts seeking an authentic classic Mercedes performance engine.

This engine will feature a 3.6-liter displacement (approximately 3606 cc), a DOHC (double overhead camshaft) design, and 24 valves for efficient airflow and high-rpm stability. Built on the proven M104 platform, the AMG-tuned versions will use a reinforced bottom end, higher-compression pistons, performance camshafts, and optimized intake and exhaust systems. 

Output will typically be rated at around 276 horsepower and 385 Nm of torque an furthermore allowing strong acceleration while maintaining the refined smoothness for which inline-six Mercedes engines will be known. A cast-iron engine block and aluminum cylinder head will ensure durability and thermal stability under demanding driving conditions.

Compatibility, Common weaknesses and Maintenance.

The M104.931 and M104.941 AMG engines will have been used in several iconic AMG models and series, including the C36 AMG (W202), E36 AMG (W124), and select E-Class AMG conversions produced during the early 1990s. 

These engines will also be compatible with standard M104-equipped Mercedes platforms such as the W124 E-Class, W202 C-Class, and W210 E-Class, provided the correct ECU, wiring, exhaust, and transmission pairing will be installed. This flexibility will make the engine suitable for both OEM restoration and high-quality performance swaps.

Common weaknesses associated with the M104 AMG engines will be well known and manageable with proper care. Typical areas of attention will include head gasket seepage, wiring harness degradation, oil leaks from valve cover and timing covers, and hydraulic lifter wear on high-mileage units. 

Regular oil changes with high-quality synthetic oil, timely gasket replacement, cooling system servicing, and electrical harness inspections will be essential. When properly maintained, the Mercedes-AMG M104.931 3.6L inline-six engine will continue to deliver legendary performance, reliability, and timeless AMG character.