Upgrade the engine bay of your N54, N55, or S55-powered vehicle with this precision-machined oil thermostat housing lid and plug kit. Designed as a direct replacement for the factory components, this set delivers improved durability, a cleaner appearance, and long-term reliability under demanding driving conditions.

Factory housings and plugs are prone to wear over time due to constant heat cycling. This billet aluminum upgrade offers a more robust solution while adding a refined, performance-inspired look to your engine compartment.

Key Features:

• CNC-Machined Billet Aluminum – Manufactured from high-quality billet aluminum for strength and precision.
• Anodized Finish – Provides excellent corrosion resistance and a clean, premium appearance.
• Precision Fitment – Designed to match factory dimensions for a secure, leak-free installation.
• Engine Bay Upgrade – Enhances durability while adding a subtle performance aesthetic.

Specifications:

• Condition: New
• Product Type: Oil thermostat housing lid cover and plug kit
• Material: Billet aluminum
• Surface Finish: Anodized
• Replacement Plug Part Number: 11 61 7 568 552

Important Notes:

• Sealing ring is not included. A replacement seal sized φ38 × φ2.5 is required.
• Not compatible with 2007–2008 N54 vehicles equipped with oil temperature monitoring.

Fitment:

• N54 / N55 / S55 engines only

• 2009–2013 E90 / E91 / E92 / E93 335i
• 2009–2010 E60 / E61 535i
• 2009–2013 E82 / E88 135i
• 2011 E82 1 Series M Coupe
• 2012–2013 E82 / E88 135is
• 2011–2016 E89 Z4 sDrive35i / sDrive35is
• 2007–2010 Alpina B3 (E90)

• 2010–2017 F10 / F11 / F07 535i
• 2010–2017 F25 X3 xDrive35i
• 2011–2015 F30 / F31 / F34 335i
• 2013–2016 F32 / F33 / F36 435i
• 2011–2018 F06 / F12 / F13 640i

• 2012–2016 F20 / F21 M135i
• 2013–2016 F22 / F23 M235i
• 2016–2018 F87 M2
• 2019–2021 F87 M2 Competition
• 2014–2018 F80 M3
• 2014–2020 F82 / F83 M4

This billet oil thermostat housing lid and plug kit is a smart upgrade for enthusiasts looking to improve reliability while refining the overall look of their engine bay.