The MMR Performance billet adaptor is a helpful addition to BMW's N54 N55 and S55 engines for those wishing to run an auxiliary oil pressure or oil temperature gauge, replacing the plug found on the oil cooler thermostat assembly with a 1/8NPT gauge adaptor. 

The MMR adaptor replaces the plug that can be found on the oil cooler thermostat assembly with a 1/8NPT gauge adaptor, making a neat job of installing your sensor.

Manufactured from T6061 billet aluminium, our Billet Adaptor for the BMW N55/N54 and S55 engines offers a high-quality aesthetic update.

The Adaptor is anodised in our trademark MMR Deep Gloss Black for a beautiful finish.

This makes a great compliment to our Oil Thermostat Cover Set, which can be ordered with or without this Adaptor - a must-have for those that like their engine bay looking at its best.

Please Note:

If this part is exposed to excessive heat for prolonged periods of time, it can affect the overall finish which is unavoidable with anodised aluminium products.