BMW
Genuine BMW B58 M7 Flange Nut with Spring Washers - OEM Engine Fastener - Part 11658670587 - Fits F20 F30 G20 G30 (M140i M240i 340i M340i 440i 540i 740i X3/X4 M40i Z4 M40i)
Genuine BMW B58 M7 Flange Nut with Spring Washers - OEM Engine Fastener - Part 11658670587 - Fits F20 F30 G20 G30 (M140i M240i 340i M340i 440i 540i 740i X3/X4 M40i Z4 M40i)
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BMW OE M7 Flanged Nut with Locking Washers - Part No. 11658670587
Refresh your B58 straight six hardware with the authentic BMW M7 flanged nut and paired locking washers, part number 11658670587. This is the dealer-supplied, factory-spec fixing designed for precise fitment on B58-powered models. Ideal for maintenance, rebuilds and hardware replacement on performance six-cylinder applications, it delivers the correct seating and security you expect from genuine BMW engine fixings.
We use this hardware in our own builds and servicing, and our customers consistently rate the fit, finish and long-term reliability. If you are chasing OEM accuracy, torque consistency and peace of mind, this is the right nut and washer set to install.
Key benefits
- Original BMW component for guaranteed compatibility on B58 applications
- Includes matching locking washers to help resist loosening under vibration
- M7 thread size for the specified BMW B58 locations
- Part number clearly identified for easy ordering and parts matching
- Perfect for engine bay hardware refresh during routine service or performance upgrades
Vehicle applications - B58 models
Confirmed for B58-equipped platforms including:
- 1 Series F20 F21 - M140i
- 2 Series F22 F23 - M240i
- 3 Series F30 F31 - 340i
- 3 Series G20 G21 - M340i
- 4 Series F32 F33 F36 - 440i
- 5 Series G30 G31 - 540i
- 6 Series G32 - 640i
- 7 Series G11 G12 - 740i
- X3 G01 - X3 M40i
- X4 G02 - X4 M40i
- Z4 G29 - Z4 M40i
If you are replacing engine fixings on F20, F30, G20, G30 and related platforms, this OE nut and washer set is the correct choice for B58 compatibility. Not sure on fitment? We can confirm before dispatch.
Part details
- Manufacturer: BMW
- BMW Part Number: 11658670587 (also searched as 11 65 8 670 587)
- Thread: M7
- Type: Flanged nut with locking spring washers
Fitment check
For a quick compatibility check, add your UK registration or the last 7 of your VIN at checkout and we will verify this fixing suits your vehicle before we ship.
Professional fitting
Want it installed correctly first time? Book fitting with MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a quote and availability.
Warranty
Two years manufacturer warranty for UK customers and one year for international customers when VIN is provided at checkout on compatible vehicles.
Why buy from us
- Trusted supplier of genuine BMW engine fixings for B58 platforms
- Used in-house on customer cars for proven results
- Great feedback for fit and durability
Search terms to help you find the right fixing
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