MMX Performance BMW S55 / N55 / N54 Oil Thermostat Housing Cover Kit

$136.20
$136.20
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The MMX Performance BMW S55 / N55 / N54 Oil Thermostat Housing Cover Kit replaces the factory plastic cover and caps on the oil thermostat housing with machined billet aluminum components.

The kit is supplied as a set rather than a single part. Alongside the machined cover plate it includes two billet caps and replacement O-rings, so the visible face of the thermostat housing is addressed in one installation.

Each component is machined from aircraft-grade 6061-T6 billet aluminum and finished in the proprietary MMX deep gloss black anodizing, which provides corrosion resistance in addition to the appearance. The finish matches the wider MMX billet engine bay range.

Installation is a direct swap at the existing housing. The thermostat and housing itself are not disturbed, and the factory components can be refitted at any time.

Two MMX parts fit the same assembly. The MMX oil temperature and pressure gauge adaptor replaces the OE plug with a 1/8 NPT port and is finished to match this kit, and the MMX low temperature oil thermostat installs into the same housing on N54 and N55 engines.

Product Details

  • Billet replacement for the factory plastic oil thermostat housing cover and caps
  • Supplied as a kit with the cover plate, two billet caps and replacement O-rings
  • Machined from aircraft-grade 6061-T6 billet aluminum
  • Proprietary MMX deep gloss black anodized finish
  • Corrosion resistant
  • Matches the wider MMX billet engine bay range
  • Fits the OE oil thermostat housing used on N54, N55 and S55 engines
  • Direct-fit installation with no modification required
  • MMX part number: MMR03-0502-BL
MMX Performance BMW S55 / N55 / N54 Oil Thermostat Housing Cover Kit

$136.20

Does it come with a warranty?

Parts are covered by the manufacturer's warranty where one is offered. If something goes wrong, contact us and we'll help you with the claim.

What happens if I don't like it?

New, uninstalled parts in their original packaging can be returned within 30 days of delivery. Suspension components (coilovers, springs and dampers), wheel spacers and batteries can't be returned, and a restocking fee applies to approved returns. See our refund policy for details.

How fast is shipping?

In-stock orders usually ship within 1–3 business days. Many parts ship directly from the manufacturer or distributor. Orders over $200 ship free with standard shipping, and faster UPS and USPS options are available at checkout. See our shipping policy.

What's the returns policy?

You have 30 days after receiving your item to request a return. Parts must be new, uninstalled and in their original packaging. Contact us first to start a return. Full details are in our refund policy.

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