MMR Performance BMW N54 N55 S55 Oil Pressure & Temperature Gauge Adaptor 1/8 NPT – Oil Cooler Thermostat Housing – Billet T6061 Black Anodised – 135i 335i 435i 1M M235i M3 M4

Oil Pressure and Oil Temperature Gauge Adaptor for BMW N54, N55 and S55 Engines by MMR Performance

Looking to add a reliable oil pressure gauge or oil temperature gauge to your BMW N54, N55 or S55 engine without messy workarounds? This MMR Performance billet adaptor is the clean, proven solution. It replaces the factory plug on the oil cooler thermostat assembly with a universal 1/8 NPT port, giving you a secure, leak-free take-off point for your oil pressure sender or oil temperature sensor. Perfect for daily driven cars, tuned builds and track cars that demand accurate, real-time engine monitoring.

Precision machined from T6061 billet aluminium and anodised in MMR’s Deep Gloss Black, this oil pressure and oil temp adaptor looks as good as it performs. The result is an OE-quality, discreet installation that avoids hacks or bodges and keeps your engine bay looking tidy. It also makes a great visual match for the MMR Oil Thermostat Cover Set.

Why choose this BMW oil gauge adaptor

• Direct fit on BMW N54, N55 and S55 oil cooler thermostat housings
• 1/8 NPT thread for most aftermarket oil pressure and oil temperature sensors
• Replaces the factory plug for a neat, OE-style installation
• T6061 billet aluminium, Deep Gloss Black anodised finish
• Ideal for auxiliary oil pressure gauge or oil temperature gauge installs
• Trusted by enthusiasts and tuners who want accurate oil data when driving hard

We use this adaptor in-house and our customers love the straightforward fit and rock-solid seal. If you are monitoring vital oil pressure and oil temp on a tuned BMW 135i, 335i, 435i, 1M, M235i, M3 or M4, this is the tidy way to do it.

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Fitting and support

Professional fitting available at Nforcd in Warwickshire. Request a quote via Sales@nforcd.com and our team will be happy to help with installation advice and booking.

This adaptor complements the MMR Oil Thermostat Cover Set and is the perfect finishing touch for a clean, functional engine bay.

Please note: prolonged exposure to excessive heat can affect the appearance of anodised aluminium finishes.

Compatibility