The MMX Performance 90mm billet coolant expansion cap for BMWs has been designed from the ground up in the UK, from a solid piece of billet aluminum. Each cap was designed to directly replace the OE cap, not merely stuck in place. Fitment is for models with the matching OE (17 11 7 639 021) part number.
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There's no avoiding it, your engine's contact surfaces wear 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 engine via the oil system for thousands of miles traveling over sensitive components such as your crankshaft bearings or camshaft caps, slowly contributing to increased engine wear. Our magnetic sump plug has a large surface area magnetic end, which helps to catch metal particles. And of course, the harder your engine works, the greater the risk of this nasty metallic debris, meaning the greater the benefit of using our magnetic sump plug. The MMX Performance magnetic sump plug is crafted from T6-6061 lightweight aluminum and is anodized in our trademark gloss black finish. It's supplied with a set of 5 sealing washers included (additional packs of washers can be ordered). Insist on an MMX magnetic sump plug at your next service! Full OE plug replacement. M18 x 1.5 fitment. Protect and increase engine lifespan. Crafted from T6-6061 lightweight aluminum. Anodized in our trademark gloss black finish. Supplied with a set of 5 sealing washers.
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