MMX BMW Magnetic Differential Drain and Fill Plug - M22 x 1.5 - Anodised 6061-T6 Aluminium OE Replacement
Protect your BMW rear differential and final drive with the MMX magnetic differential plug. This direct OE replacement drain and fill plug uses a powerful embedded magnet to attract and trap fine metallic particles and swarf suspended in your diff oil. Cleaner oil means smoother operation, better lubrication, reduced wear on gears, bearings and LSD clutch packs, and improved long term reliability for both road and track BMWs.
If you service your differential, this is a simple, high value upgrade. Swap the factory plug for the MMX magnetic plug during a routine diff oil change and start capturing the ferrous debris that naturally builds up as components bed in and wear. We have used this on our own BMWs and customer cars with excellent results. Customers report noticeably cleaner oil at each service and quieter, smoother differentials over time.
Why choose this BMW magnetic diff plug
- Magnetic BMW differential drain and fill plug captures metallic particles to protect your final drive
- Direct OE replacement for M22 x 1.5 threaded BMW differentials
- Premium 6061-T6 aluminium with a durable anodised finish
- Helps keep diff oil cleaner for longer which reduces friction and heat
- Ideal preventative maintenance for daily driving, fast road and track day use
- Quick, low cost upgrade with real, measurable benefits at each oil change
Fitment
Fits BMW differentials that use an M22 x 1.5 thread. Suitable for both drain and fill positions where this thread is used.
Please confirm your differential thread size before ordering.
Technical details
- Thread size: M22 x 1.5
- Material: 6061-T6 aluminium
- Finish: Anodised
- Type: Magnetic differential drain and fill plug
- Replacement: Direct OE replacement
Installation
Direct replacement for the factory plug. Install during a differential oil change and torque to the manufacturer specification. If you would prefer professional fitting, Nforcd is based in Warwickshire. Request a fitting quote at Sales@nforcd.com.
Proven on our cars and with our customers
We run this magnetic BMW diff plug on our own builds and customer BMWs. Feedback is consistently positive, with cleaner drained oil and reduced wear indicators over successive services.
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Upgrade your BMW differential protection today with the MMX magnetic drain and fill plug and enjoy cleaner oil, smoother operation and greater peace of mind every time you service your diff.

