Remanufactured Turbo / Turbocharger 49335-02055 - BMW M2 M3 M4 S55 Bank 4-6 | 411-500HP
Remanufactured turbocharger for BMW S55 3.0 petrol engines, fitted as the bank 4-6 turbo on selected BMW M2 Competition, M2 CS, M3, M3 Competition, M3 CS, M4, M4 Competition, M4 CS and M4 GTS applications. Covers 411-500HP / 302-368kW S55 B30 A engines, depending on model, year and original turbo fitted.
Turbo reference: 49335-02055. Also covers 49335-02051, 49335-02052, 49335-02053, 49335-02054 and 49335-02050, including 49T35 and plain number formats. OE references include 11657849651, 11657749651, 11657850279 and 785027901. Commonly searched as BMW M3 S55 turbo, BMW M4 turbocharger, M2 Competition bank 4 turbo, 49335-02050 turbo and BMW S55 turbo replacement.
Please check your part number before ordering. Call 07440 707 255 or 01323 301 999 for help.
Images are for illustration purposes only.
Remanufactured Turbo / Turbocharger 49335-02055 - BMW M2 M3 M4 S55 Bank 4-6 | 411-500HP
Supplied without the original manufacturer’s box
This remanufactured turbo is the bank 4-6 turbo for selected BMW S55 3.0 petrol twin turbo applications, including M2 Competition, M2 CS, M3, M3 Competition, M3 CS, M4, M4 Competition, M4 CS and M4 GTS models. It is suitable for compatible S55 B30 A engines where the original turbo matches the 49335-02050 turbo family.
Turbocharger reference: 49335-02055. Related references include 49335-02051, 49335-02052, 49335-02053, 49335-02054 and 49335-02050, including matching 49T35 and plain number formats. OE references include 11657849651, 11657749651, 11657850279 and 785027901.
This unit is suitable for selected BMW turbocharger applications where the part number and bank position match. Before fitting, check the oil feed, oil return, coolant lines, breather system, intercooler, charge pipes, diverter valves, exhaust system and actuator control. For fitting, diagnostics and exchange support, see our turbocharger services.
Product Highlights
- Remanufactured OEM-spec turbocharger
- Bank 4-6 turbo from a twin turbo setup
- Turbo reference: 49335-02055
- Fits selected BMW M2, M3 and M4 S55 models
- Suitable for 411-500HP applications
- Direct replacement - no modification required
- Sold on an exchange basis
- Fitting instructions
Exchange Basis - How It Works
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:
- Pay the surcharge - your replacement turbo is dispatched immediately. The surcharge is refunded in full once we receive your old unit. Please return your old turbocharger within 21 days.
- Send your old turbo first - once received, we will dispatch your replacement the same day with no surcharge required.
- Visit our workshop - bring your old unit to our Eastbourne workshop and we will exchange it on-site.
Vehicle Compatibility
This turbocharger fits the following makes, models, and engine specifications:
| Make | Model | HP | kW | Engine | Engine Code | Year |
|---|---|---|---|---|---|---|
| BMW | 2 Series Coupe F22, F87 M2 Competition / M2 CS | 411 / 450 | 302 / 331 | 3.0 petrol | S55 B30 A | 06/2018- |
| BMW | 3 Series F30, F80 M3 / M3 Competition / M3 CS | 431 / 450 / 460 | 317 / 331 / 338 | 3.0 petrol | S55 B30 A | 03/2014-10/2018 |
| BMW | 4 Series Cabriolet F33, F83 M4 / M4 Competition | 431 / 450 | 317 / 331 | 3.0 petrol | S55 B30 A | 07/2014- |
| BMW | 4 Series Coupe F32, F82 M4 / M4 Competition / M4 CS / M4 GTS | 431 / 450 / 460 / 500 | 317 / 331 / 338 / 368 | 3.0 petrol | S55 B30 A | 03/2014-06/2019 |
Associated part numbers: 49335-02050, 4933502050, 49T35-02050, 49T3502050, 49335-02051, 4933502051, 49T35-02051, 49T3502051, 49335-02052, 4933502052, 49T35-02052, 49T3502052, 49335-02053, 4933502053, 49T35-02053, 49T3502053, 49335-02054, 4933502054, 49T35-02054, 49T3502054, 49335-02055, 4933502055, 49T35-02055, 49T3502055, 11657849651, 11657749651, 11657850279, 785027901
Fitting Advice
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.
Fitting Service at Turboworks
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.
Warranty Information
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 & Dispatch
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 ordered before 3 pm are typically dispatched the same working day for next-day delivery. Orders placed after 3 pm, at weekends or on bank holidays will be dispatched on the next working day.
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.
Returns
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.
Turbocharger Guides & Advice
Please check your turbocharger part number before ordering. Many vehicles use more than one turbocharger version depending on model year, engine code, power output, emissions setup and actuator type.
If you are unsure whether your turbocharger has failed, or you want to understand common causes of turbo problems before ordering, visit our technical information hub.
For Turboworks updates, buying guidance and practical articles about replacement turbochargers, visit our blog.
Need help confirming compatibility?
Contact Turboworks on 07440 707 255 or 01323 301 999.
Based in Eastbourne - specialists in turbocharger replacement, supply, and diagnostics.
- Condition:
- Remanufactured
- Fits to:
- BMW M2, M3, M4
- Engine Code:
- S55 B30 A
- Power (BHP):
- 411 / 431 / 450 / 460 / 500 HP
- Capacity (cm3):
- 3.0 petrol
- Years:
- BMW 2 Series Coupe F22 3.0 2018-
BMW 3 Series F30, F80 M3 3.0 2014-2018
BMW 4 Series Cabriolet F33, F83 M4 3.0 2014-
BMW 4 Series Coupe F32, F82 M4 3.0 2014-2019
BMW F87 M2 Competition 3.0 2018-
BMW M2 CS 3.0 2018-
BMW M3 CS 3.0 2014-2018
BMW M3 Competition 3.0 2014-2018
BMW M4 CS 3.0 2014-2019
BMW M4 Competition 3.0 2014-2019
BMW M4 GTS 3.0 2014-2019 - Part numbers:
- 49335-02050, 4933502050, 49T35-02050, 49T3502050, 49335-02051, 4933502051, 49T35-02051, 49T3502051, 49335-02052, 4933502052, 49T35-02052, 49T3502052, 49335-02053, 4933502053, 49T35-02053, 49T3502053, 49335-02054,
4933502054, 49T35-02054, 49T3502054, 49335-02055, 4933502055, 49T35-02055, 49T3502055 - OE numbers:
- 11657849651, 11657749651, 11657850279, 785027901