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Turbocharger, cyl 1-3 and cyl 4-6. Porsche 991.2 Turbo 2017-18 ❭ 9A112301
- Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
- Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
Exhaust Turbocharger
Restore the exhilarating performance of your Porsche with
this Exhaust Turbocharger. Manufactured by BorgWarner, one of the
world's leading turbocharger manufacturers and a recognised Original Equipment
supplier, this premium-quality turbocharger delivers the performance,
efficiency and reliability expected from a Porsche 911 Turbo.
Fits:
- Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
- Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
Diagram ref no 17 (cyl. 1-3) and 18 (cyl. 4-6)
Designed to operate under extreme temperatures and rotational speeds exceeding 200,000 RPM, the turbocharger is one of the most highly engineered components within the engine. BorgWarner's advanced manufacturing processes, precision-balanced rotating assemblies and high-temperature materials ensure rapid boost response, maximum efficiency and exceptional durability.
Whether you're replacing a worn turbocharger, repairing boost-related faults or restoring factory performance, this BW turbocharger provides OE-quality fitment and uncompromising performance.
What Does the Turbocharger Do?
The turbocharger increases engine performance by using exhaust gas energy to compress incoming air before it enters the engine.
This allows the engine to:
- Produce significantly more power and torque.
- Improve throttle response.
- Increase engine efficiency.
- Deliver strong acceleration throughout the rev range.
- Maintain performance at higher engine speeds.
- Improve combustion efficiency.
The Porsche 991 Turbo's twin-turbocharged flat-six relies on precision-engineered turbochargers to deliver its exceptional performance while maintaining everyday drivability.
Why Do Turbochargers Fail?
Although designed for long service life, turbochargers can
eventually wear or become damaged through:
- Bearing wear caused by high mileage.
- Oil contamination or insufficient lubrication.
- Foreign object damage.
- Excessive heat cycling.
- Oil seal deterioration.
- Carbon deposits restricting variable geometry mechanisms (where applicable).
- Overspeed caused by boost control faults.
Regular oil changes using Porsche-approved lubricants are essential for maximising turbocharger lifespan.
Symptoms of a Failing Turbocharger
Common warning signs include:
- Reduced engine power.
- Loss of boost pressure.
- Whining or siren-like noises.
- Excessive exhaust smoke.
- Oil consumption.
- Check engine light.
- Turbocharger fault codes.
- Poor acceleration.
- Boost pressure fluctuations.
Replacing a worn turbocharger restores the engine's original power delivery, efficiency and reliability.
When Should the Turbocharger Be Replaced?
Replacement is recommended when:
Bearing wear is identified. Oil seals begin leaking. Compressor or turbine wheel damage is found. Boost pressure cannot be maintained. Excessive shaft play develops. Turbocharger failure has occurred. Major engine repairs require replacement.Replacing the turbocharger promptly helps prevent debris entering the engine or exhaust system and avoids further costly repairs.
Why Choose a BorgWarner Turbocharger?
BorgWarner is one of the world's most respected manufacturers of high-performance turbocharging systems and an Original Equipment supplier to many leading vehicle manufacturers, including Porsche.
Benefits include:
OE-quality engineering. Precision-balanced rotating assembly. Excellent boost response. Outstanding durability. High-temperature resistant construction. Designed for factory performance levels. Direct replacement installation. Manufactured to exacting quality standards. Trusted by Porsche enthusiasts and professional workshops worldwide.Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9A112301
The product you are viewing cross references to these numbers
- Porsche 958 Cayenne V6 3.6L Petrol (300Hp) 2010-17
- Porsche 970.2 Panamera S E-Hybrid V6 3.0L (416Hp) 2014-16
- Porsche 95B.1 Macan S Petrol 3.0L V6 (340Bhp) 2014-18
- Porsche 95B.1 Macan GTS Petrol 3.0L V6 (360Bhp) 2014-18
- Porsche 95B.1 Macan Turbo 3.6L V6 (400Bhp) 2014-18

Fits:
Porsche 958 Cayenne 3.6L V6 Turbo 2015>>
Porsche 95B Macan 3.0L / 3.6L 2014>>
Porsche 970 Panamera S 3.0L 2014>>
Click 'Zoom in' for large parts diagram.
Diagram ref no 4
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94660515501
The product you are viewing cross references to these numbers
- Porsche 958 Cayenne V6 3.6L Petrol (300Hp) 2010-17
- Porsche 970.2 Panamera S E-Hybrid V6 3.0L (416Hp) 2014-16
- Porsche 95B.1 Macan S Petrol 3.0L V6 (340Bhp) 2014-18
- Porsche 95B.1 Macan GTS Petrol 3.0L V6 (360Bhp) 2014-18
- Porsche 95B.1 Macan Turbo 3.6L V6 (400Bhp) 2014-18
Fits:
Porsche 958 Cayenne 3.6L V6 Turbo 2015>>
Porsche 95B Macan 3.0L / 3.6L 2014>>
Porsche 970 Panamera S 3.0L 2014>>
Click 'Zoom in' for large parts diagram.
Diagram ref no 4
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94660515501
The product you are viewing cross references to these numbers
- Porsche 95B.1 Macan S Petrol 3.0L V6 (340Bhp) 2014-18
- Porsche 95B.1 Macan GTS Petrol 3.0L V6 (360Bhp) 2014-18
Units listed are direct replacement for the standard Turbo chargers.
BorgWarner ref no 53039980610 / 53039980437
Fits:
Porsche 95B Macan S (Engine: MCT.MA) 2013-2018
Porsche 95B Macan GTS (Engine: MDC.NA) 2013-2018
REPLACEMENT
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94612302
The product you are viewing cross references to these numbers
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