Genuine BMW B58 Exhaust Manifold Gasket – OEM Replacement for F20, F30, G11, G30 Platforms (M140i, M240i, 340i, 440i, 540i, 640i, 740i, X3 M40i/M40ix)
Keep your BMW B58 running at its best with this Genuine BMW Exhaust Manifold Gasket. This is the correct OEM gasket designed specifically for the BMW B58 engine family, delivering a factory seal between the manifold and mating surfaces to prevent exhaust leaks, restore performance and protect your turbo system. If you are experiencing exhaust fumes, ticking on cold start, or servicing/upgrading your turbo or downpipe on a B58, this is the exact replacement part you need.
Part Number: 11657643149
Why choose this Genuine BMW B58 Exhaust Manifold Gasket?
- Perfect OEM fit and seal for B58 engines: precise dimensions and materials for leak-free performance.
- Heat and pressure resistant gasket construction for long-term reliability on tuned and stock cars alike.
- Ideal during turbo, manifold or downpipe work to prevent re-use related leaks and ensure a proper refit.
- Genuine BMW quality for peace of mind, durability and correct installation every time.
We supply and fit these gaskets regularly on B58 cars and they simply work. Our B58 customers are consistently happy with the fit, finish and reliability of the genuine part.
Compatibility – BMW B58 Models
Engine: BMW B58 (B58B30)
- 1 Series F20 / F21 LCI (09/2015–06/2019): M140i, M140ix
- 2 Series F22 / F23 and LCI (09/2015–12/2019): M240i, M240ix
- 3 Series F30 / F31 / F34 LCI (09/2014–12/2019): 340i, 340iX
- 4 Series F32 / F33 / F36 and LCI (11/2012–12/2019): 440i, 440iX
- 5 Series G30 / G31 (10/2015–06/2019): 540i, 540ix
- 6 Series G32 GT (09/2016–06/2019): 640i, 640ix
- 7 Series G11 / G12 (10/2014–02/2019): 740i, 740ix, 740Li, 740Lix
- X Series X3 G01: M40i, M40ix
This part suits the B58 engine across popular chassis including F20, F21, F22, F23, F30, F31, F34, F32, F33, F36, G11, G12, G30, G31, G32 and X3 G01. Common search terms include: BMW B58 exhaust manifold gasket, B58 manifold gasket, M140i exhaust gasket, 340i manifold gasket, 440i exhaust gasket, 540i gasket, 740i gasket, X3 M40i exhaust gasket, OEM BMW gasket 11657643149.
Fitting and Installation
Professional installation is recommended. For fitting, choose Nforcd in Warwickshire. Request a fitting quote: Sales@nforcd.com.
Top tip: always replace gaskets when removing or refitting exhaust or turbo components to ensure a reliable, leak-free seal.
Compatibility Check
We will verify fitment before dispatch. Provide your UK registration or the last 7 digits of your VIN at checkout and we will confirm compatibility for your exact vehicle.
Manufacturer and Warranty
Manufactured by: BMW
Warranty: Two years manufacturer warranty for UK customers and one year manufacturer warranty for international customers if VIN is provided during checkout on compatible vehicles.
Key Benefits and Search Terms
- Genuine BMW B58 exhaust manifold gasket OEM
- M140i, M240i, 340i, 440i, 540i, 640i, 740i exhaust leak fix
- F20 F30 G11 G30 B58 gasket replacement
- X3 M40i, X3 M40ix B58 exhaust gasket
- BMW part number 11657643149
- Manifold to head gasket, turbo manifold gasket, exhaust gasket B58
Choose genuine parts for your B58. Order your BMW Exhaust Manifold Gasket 11657643149 from Nforcd today.