Mosselman Oil Thermostat Installation Kit for BMW N54, N55 and S55 Engines
Stop leaks before they start. The Mosselman Oil Thermostat Installation Kit is the essential seal and gasket kit to install your MSL Oil Thermostat on BMW N54, N55 and S55 engines. Designed to prevent oil leaks at the thermostat and oil filter housing, this simple, cost-effective kit refreshes the critical seals you should never reuse. Whether you daily drive or push hard on track, fresh O-rings and a new oil filter housing gasket are a must for a clean, reliable install.
At Nforcd we have installed and used this kit across multiple BMW N54, N55 and S55 builds, and customer feedback has been excellent. No more weeping joints, no mess, just a proper, leak-free fitment that protects your engine and keeps oil temps and pressure where they should be. If you are fitting an MSL Oil Thermostat, add this install kit to your basket.
Why choose this kit
- Prevents oil leaks during and after MSL Oil Thermostat installation
- Correct size oil hose O-rings for a perfect seal on BMW N54, N55, S55
- New rubber oil filter housing gasket to replace tired, flattened originals
- Ideal for BMW 135i, 335i, 435i, M135i, M235i, M2, M3, M4 and Z4 35i platforms
- Recommended by Nforcd for every oil thermostat upgrade or service
What is included
- 2 x O-ring for the oil hose
- 1 x Rubber oil filter housing gasket
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Compatibility
- BMW 135i E82 N54
- BMW 135i E82 N55
- BMW 1M E82 N54
- BMW 335i E90/E91/E92 N54
- BMW 335i E90/E91/E92 N55
- BMW Z4 35i E89 N54
- BMW Z4 LCI 35i E89 N54
- BMW Z4 35is E89 N54
- BMW M135i F20/F21 N55
- BMW M235i F22 N55
- BMW M2 F87 N55
- BMW 335i F30/F31 N55
- BMW 335i GT F34 N55
- BMW 435i F32/F33 N55
- BMW 435i Gran Coupe F36 N55
- BMW M2 Competition F87 S55
- BMW M3 F8x S55
- BMW M3 Competition F80 S55
- BMW M3 CS F80 S55
- BMW M4 F8x S55
- BMW M4 Competition F82 S55
- BMW M4 CS F82 S55
- BMW M4 GTS F82 S55
Fitting and support
Professional fitting available at Nforcd in Warwickshire. Request a quote at Sales@nforcd.com. We recommend installing this kit whenever you fit or service an MSL Oil Thermostat on N54, N55 or S55 engines to ensure a reliable, leak-free result.
Buy with confidence
Trusted by BMW enthusiasts for N54, N55 and S55 platforms, this oil thermostat seal kit is the smart addition to every Mosselman MSL Oil Thermostat purchase. Add to basket now for a cleaner, faster, trouble-free installation.