Porsche 991 Engine

Porsche 911 991 Replacement Engine

The Porsche 991 engine is a high-performance flat-six power unit associated with the seventh-generation Porsche 911, produced from 2011 through 2019. Porsche offered several engine configurations across the 991 range, so the exact engine specification depends on the model, production year and variant.

Early 991 Carrera models used naturally aspirated flat-six engines, including the 3.4-liter Carrera engine and 3.8-liter Carrera S engine. Following the 2015 model update, the Carrera range moved to 3.0-liter twin-turbocharged engines. Other 991 variants, including the GT3, Turbo and GT2 RS, used different engine configurations.

This makes the exact engine identification extremely important when purchasing a replacement Porsche 991 engine.

Main Benefits

• Replacement solution for a Porsche 911 991 requiring an engine assembly.
• Suitable for restoration and repair projects when correctly matched.
• Provides an option for owners looking for a replacement Porsche power unit.
• Appropriate for Porsche specialists, workshops and experienced enthusiasts.
• Can be used for qualifying replacement or project applications.
• Available configurations can cover different 991 model applications depending on the specific engine.

Product Features

• Vehicle: Porsche 911
• Generation: Type 991
• Production generation: 2011–2019
• Engine design: Six-cylinder horizontally opposed/flat-six
• Engine location: Rear-mounted
• Cooling: Water-cooled
• Applications: Dependent on the exact 991 model and engine specification
• Condition: Verify individual listing
• Fitment: Vehicle and engine-code specific

Porsche’s original technical information identifies the 2012 991 Carrera and Carrera S as water-cooled, rear-mounted, horizontally opposed six-cylinder engines with direct fuel injection and integrated dry-sump lubrication.

Why Choose a Porsche 991 Replacement Engine?

Replacing an engine can be a significant part of restoring or repairing a Porsche 911. A suitable replacement engine may help a vehicle owner return a damaged or non-running car to service without replacing the entire vehicle.

The Porsche 991 platform includes several different engine configurations, making accurate identification essential. A replacement engine should be matched against the vehicle’s year, model, engine specification, engine number or other available identification information before purchase.

Common Porsche 991 Applications

The 991 generation included several 911 variants, including:

• 911 Carrera
• 911 Carrera S
• 911 Carrera 4
• 911 Carrera 4S
• 911 Carrera GTS
• 911 Turbo
• 911 Turbo S
• 911 GT3
• 911 GT3 RS
• 911 GT2 RS

These models do not all use the same engine. For example, Porsche identifies the early Carrera as a 3.4-liter engine, while the Carrera S used 3.8 liters. After the 2015 update, Carrera models adopted 3.0-liter twin-turbocharged engines.

Who Is This Engine For?

This product is intended for Porsche owners, independent Porsche specialists, automotive repair shops, restoration businesses, collectors and performance-car enthusiasts in the USA who require a replacement engine for a compatible Porsche 911 991 application.

It can be particularly useful for vehicles undergoing mechanical restoration or requiring an engine replacement following major engine damage.

Fitment and Compatibility

Do not order a Porsche 991 engine based only on the phrase “991 engine.”

The correct engine must be identified according to the vehicle’s:

• Model year
• Carrera/Turbo/GT variant
• Engine specification
• Engine code
• VIN
• Existing engine number
• Transmission configuration where relevant
• Required ancillary components

Send MBAMG Auto Parts Dealership your Porsche year, model, VIN and engine information before ordering so the application can be checked.

Frequently Asked Questions

What is a Porsche 991 engine?

A Porsche 991 engine is an engine used in the seventh-generation Porsche 911, known internally as the Type 991. The generation was produced from 2011 to 2019 and included several different engine configurations.

What engine does the Porsche 991 use?

There is no single 991 engine. Depending on the model and year, Porsche used different naturally aspirated and turbocharged flat-six engines. Early Carrera models included 3.4-liter and 3.8-liter engines, while later Carrera models used 3.0-liter twin-turbo engines.

Does every Porsche 991 use the same engine?

No. Carrera, Carrera S, GTS, Turbo, GT3, GT3 RS and GT2 RS models can have different engine specifications. Fitment must therefore be confirmed using the exact vehicle information.

Can I use a Porsche 991 engine in another 911?

Compatibility depends on the specific engine and vehicle configuration. Physical fitment does not necessarily mean that the engine is electronically or mechanically compatible with another 911 model.

Is this a used Porsche 991 engine?

The condition should be confirmed from the individual product listing. If the engine is used, the listing should identify its condition, mileage where known, engine number and included components.

How do I verify the correct Porsche 991 engine?

The safest approach is to provide your VIN, year, exact 911 model, engine code or existing engine number. These details allow the replacement engine to be compared against the vehicle application.

Does the engine come complete?

Engine assemblies can be supplied in different configurations. Components such as turbochargers, intake systems, exhaust components, wiring, ECU, accessories and other ancillary parts should not be assumed to be included unless specifically stated in the listing.

Is the Porsche 991 engine suitable for a restoration project?

Yes. A correctly matched replacement engine can be considered for Porsche 911 restoration, repair and project vehicles, provided the engine specification and vehicle application are confirmed.

Buy a Porsche 991 Engine in the USA

Looking for a Porsche 991 engine for sale for a repair, restoration or replacement project? MBAMG Auto Parts Dealership can help customers identify the appropriate Porsche engine based on their vehicle information.

Before purchasing, provide your Porsche’s year, model, VIN and available engine information. This is especially important because the 991 generation contains multiple engine configurations.

Conclusion

The Porsche 991 engine represents a range of high-performance flat-six engines used throughout the seventh-generation Porsche 911. From early naturally aspirated Carrera engines to later turbocharged Carrera power units and specialized engines used in high-performance variants, the correct replacement depends on the exact vehicle.

For the best fitment result, verify the year, model, engine specification and VIN before ordering. This helps ensure that the Porsche engine you purchase is appropriate for your specific 911 991 application.