MMR Magnetic differential oil plug M22 x 1.5 MMR03-0503 for All BMW / MINI - MMR03-0503 - The MMR Performance BMW Magnetic Diff Plug is a simple, cost effective upgrade that can dramatically increase your differential's lifespan. ​ As the differential wears, tiny metallic particles become suspended in the oil - our magnetic diff plugs help to safely separate these nasty particles out of your lubricants. M22 x 1.5 Magnetic differential plug. Catch ferrous particles before they catch you. There's no avoiding it, your differential wears a tiny amount each time it runs. So, it becomes inevitable that tiny ferrous particles become suspended in the oil. They quickly make their way around your diff, slowly contributing to increased wear. Our magnetic diff plug has a large surface area magnetic end, which helps to catch metal particles. And of course, the harder your diff works, the greater the risk of this nasty metallic debris, meaning the greater the benefit of using our magnetic plug. The MMR Performance magnetic differential plug is crafted from T6-6061 lightweight aluminium and is anodised in our trademark finish. It's supplied with a sealing washer. Insist on an MMR magnetic diff plug at your next service! Product features Full OE plug replacement. M22 x 1.5 fitment. Protect and increase differential lifespan. Crafted from T6-6061 lightweight aluminium. Anodised in our trademark finish. Supplied with a sealing washer. Fitting informations This will fit all differentials that use a thread of M22x 1.5.  Fitting guide Match OE torque specs.