BMW E90 E92 E93 M3 420HP V8 Complete Engine S65 S65B40A with 34k m, WARRANTY

Warranty and technical condition of the part

The engine is sold with a 90-day warranty.

The warranty covers the engine itself; engine accessories are covered by a 30-day warranty.

The power unit was tested before removal and is in full working order.

Listing details

The offer applies to a complete engine.

The engine comes from a right-hand drive (RHD) vehicle. The wiring harness is not compatible with left-hand drive (LHD) vehicles and requires replacement or modification.

BMW E90 E92 E93 M3 420HP V8 Complete Engine S65 S65B40A with 34k m, WARRANTY is a complete powertrain from the V8 family, designed for the sports versions of the BMW M3 E9x generation. It is a solution for users who expect precise throttle response, high refinement, and the characteristic sound of a naturally aspirated petrol engine, while maintaining factory compatibility with E90, E92, and E93 bodies.

Specifications and technical data

• SKU: 0442123-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 0442123
• Substitutable numbers: 11000442123, 0442123, 11000428218, 0428218, 11000442124, 0442124, 11000428221, 0428221, S65B40A, S65B40, S65
• Fuel type: Petrol
• Number of cylinders: 8
• Category: Engines
• Mileage: 59 000

Characteristics of the V8 power unit

The S65 engine family is a high-revving, petrol V8 unit developed specifically for the M3 E90, E92, and E93 models. The eight-cylinder design ensures smooth power delivery, stable operation across the entire rev range, and a distinctly sporty character. As a result, the engine performs very well both in dynamic road driving and in track applications, where quick load response and consistent performance are essential.

High mechanical loads, typical for units with approximately 420 HP, have been balanced in this design by the appropriate geometry of the block, heads, and crankshaft-piston system. The use of petrol allows for a wide usable rev range, which translates into flexibility and predictable vehicle behavior under various operating conditions.

Application in BMW M3 E90, E92, E93

The BMW E90 E92 E93 M3 420HP V8 Complete Engine S65 S65B40A with 34k m, WARRANTY has been designed as a factory solution for the BMW M3 in sedan (E90), coupe (E92), and convertible (E93) versions. This means that with the correct selection of accessories and control systems, it is possible to maintain the original engine bay architecture, mounting points, and integration with the vehicle's factory systems. This type of configuration is particularly valued for professional accident repairs, major overhauls, and restoring M3 cars to full technical efficiency.

The V8 unit in this configuration works well with both manual and factory automated transmissions used in the M3 E9x, provided that the controllers and wiring harnesses are correctly matched. Thanks to this, the engine can be used both for standard replacement and for more advanced modernization projects within the same platform.

Design parameters and performance characteristics

The eight-cylinder V-configuration ensures favorable weight distribution and the characteristic, smooth operation of the power unit. This architecture promotes stability at high engine speeds and enables precise torque control. The use of petrol allows for high specific power, which is typical for BMW M sports units.

The mileage of this unit, measured in tens of thousands of kilometers, indicates previous use, but at the same time leaves potential for further operation after performing standard service and inspection procedures. In practice, this means the possibility of a rational combination of purchase costs and expected durability, especially compared to building an engine from scratch.

Professional selection and vehicle integration

To correctly select the BMW E90 E92 E93 M3 420HP V8 Complete Engine S65 S65B40A with 34k m, WARRANTY for a specific BMW M3, it is recommended to verify compatibility using catalog numbers and vehicle data. It is crucial to match the engine version to the model year, body type, and the drivetrain used. Proper identification helps avoid problems with the compatibility of accessories, controllers, and electrical installations.

For users who want to deepen their knowledge about purchasing used power units, procedures for selection by VIN and OEM numbers, and the real cost differences between new and used components, an expert guide has been prepared: Why it is worth buying used gearboxes and engines – facts instead of myths. This is a practical source of information that helps in making informed purchasing decisions when choosing an engine for a BMW.

BMW engines – expansion and modernization of the powertrain zone

If you are planning a comprehensive repair or modernization of the engine area in your BMW and need other elements from the same group, such as blocks, heads, or complete power units, check the available parts in the BMW Engines category.