Remanufactured turbocharger for Porsche 911 (991) 3.0 Turbo petrol engines, fitted to Carrera S models and commonly used as a higher-flow upgrade for standard Carrera applications. Built for the 9A2 engine platform, this unit supports 420HP setups and is often searched as Porsche 991 turbocharger, 911 Carrera S turbo, 9A2 turbo and Porsche turbo upgrade.
OEM-spec remanufactured turbocharger with increased compressor flow compared to standard Carrera units, while retaining identical turbine housing for direct fitment. Covers part numbers including 53039700740, 53039700519 with OE references such as 9A2.123.031.05. Suitable as a direct replacement or upgrade option where higher airflow capacity is required.
Please check the part number on your existing turbocharger before ordering. If unsure, call us on 07440 707 255 or 01323 301 999.
Images are for illustration purposes only.
Supplied without the original manufacturer’s box
Commonly identified by part numbers such as 53039700740, 530-397-00519 and 5303 970 0557, this remanufactured turbo is fitted to Porsche 911 (991) Carrera S model equipped with the 3.0 twin-turbo 9A2 engine.
Typical turbocharger issues include loss of boost, reduced performance, hesitation under load or excessive smoke. On 9A2 engines, maintaining correct oil supply and cooling is critical, as these engines operate under high thermal load and are sensitive to oil quality and service intervals.
Built to OEM specification, this turbocharger restores correct boost pressure, throttle response and overall performance across Porsche 911 applications.
This turbocharger is supplied on an exchange basis, which means we require your old unit to be returned. You can arrange this in whichever way is most convenient:
This turbocharger fits the following makes, models, and engine specifications:
| Make | Model | HP | kW | Engine | Engine Code | Year |
|---|---|---|---|---|---|---|
| Porsche | 911 (991) Carrera | 365 | 272 | 3.0 | 9A2 (MDCKA) | 2015-2018 |
| Porsche | 911 (991) Carrera S | 420 | 309 | 3.0 | 9A2 (MDCHA) | 2015-2018 |
Associated part numbers: 53039700495, 5303-970-0495, 53039700519, 5303-970-0519, 53039700557, 5303-970-0557, 53039700567, 5303-970-0567, 53039700682, 5303-970-0682, 53039700734, 5303-970-0734, 53039700740, 5303-970-0740, 53039880740, 5303-988-0740, 53039980740, 5303-998-0740, 9A2.123.031.01, 9A2.123.031.02, 9A2.123.031.03, 9A2.123.031.04, 9A2.123.031.05, 9A2.123.031.06, 9A212303101, 9A212303102, 9A212303103, 9A212303104, 9A212303105, 9A212303106
We always recommend having your replacement turbocharger fitted by a qualified mechanic. Correct installation is essential to ensure proper fitment, reliable operation, and long service life from day one.
You can read our full fitting instructions here.
It is also essential that the root cause of the original turbocharger failure is identified before fitting the replacement. In many cases there is an underlying issue that also needs attention, such as a blocked DPF. This is one of the most common contributing factors, and fitting a new turbo without resolving it can place the replacement under unnecessary strain.
We also offer a professional DPF cleaning service if required.
If you would like us to carry out the installation, our Eastbourne workshop is staffed by experienced mechanics whose day-to-day work includes turbocharger replacement, diagnostics, and related repairs.
If you are looking for a turbo specialist, click here to request a fitting quote, or call us directly on 07440 707 255 or 01323 301 999.
Please note that we do not offer a while-you-wait service. We will arrange a booking time that works for you.
Unless otherwise stated, warranty is provided to the original purchaser for repair or replacement of the turbocharger for up to 2 years from date of purchase or 12,000 miles (whichever occurs first). Warranty covers the turbocharger for faulty workmanship or components and does not extend to damage caused by misuse in fitting or operation.
The reason for failure of the previous turbocharger must be rectified prior to fitting a replacement. Air and oil filters, engine oil, gaskets and the oil feed pipe need to be changed or replaced. Proof of purchase of components may be required to support any claims.
Proof and date of the original purchase will be required before considering any warranty claim, and the unit must be returned complete. Any attempt to dismantle or repair the unit will invalidate the conditions of warranty. Warranty does not cover any cost of labour or materials required to remove or reinstall the turbocharger.
Delivery is available within the United Kingdom and internationally, subject to availability. Free delivery applies to turbochargers supplied to UK mainland addresses unless otherwise stated. Delivery timeframes provided are estimates only.
Stock items are typically dispatched for next working day delivery where orders are placed before the stated cut-off time. Non-stock or special-order items are subject to lead times, which will be confirmed separately. Certain geographical locations may require extended delivery periods.
Please inspect goods immediately upon delivery. Where packaging is visibly damaged, delivery should be refused and reported without delay.
If you need to return a turbocharger or send a unit back to us, please contact us first so we can advise on the correct process.
Where a unit is being returned or collected, it must be securely packaged in a suitable, rigid cardboard box and adequately protected using appropriate packaging materials. Non-essential components (including oil feed pipes, oil return pipes, sensors, wiring, brackets, and ancillary fittings) should be removed before sending.
Where return shipment is arranged by the customer, please retain proof of shipment and tracking details.
How long does a turbocharger replacement take?
The time required depends on the vehicle, engine layout, and how accessible the turbocharger is. Some replacements are straightforward and take only a few hours, while others require more dismantling and can take considerably longer. Contact us for a realistic estimate based on your specific vehicle.
How much does turbo replacement cost?
The cost varies depending on the vehicle and the extent of the labour involved. We are experienced in finding practical solutions across a range of budgets, including for older and less common units. Get in touch for a free, no-obligation quote.
What are the signs of a failing turbo?
Common signs include loss of power, smoke from the exhaust, increased oil consumption or unusual whining noises. If your turbo is showing these symptoms, it may need replacing.
Need help confirming compatibility?
Contact Turboworks on 07440 707 255 or 01323 301 999.
Based in Eastbourne – specialists in turbocharger replacement, supply, and diagnostics.
