Home » Aluminum Thermostat Bung Adapter Kit for BMW 1 3 5 7 Series

Aluminum Thermostat Bung Adapter Kit for BMW 1 3 5 7 Series

SKU: 1005010381652203-adaptor
Color
€51,32
-37% €82,11 €51,32

The original cooling system bung frequently degrades under repeated heat cycles, triggering persistent coolant leaks that typically require costly full-assembly replacements. This aluminum thermostat bung adapter kit provides a precise, long-lasting alternative designed specifically for select BMW generations. Precision-engineered from durable aluminum and finished in black, the BOP40 unit seals compromised housing points without altering existing coolant routing or sensor placements. By replacing only the failed bung rather than the entire thermostatic unit, you recover reliable temperature regulation and eliminate expensive downtime.

Usage Tips & Maintenance Advice

  • Remove debris and old gasket residue from the mounting surface before installation to guarantee a leak-free thermal seal.
  • Apply moderate torque when securing fittings; overtightening aluminum threads can strip mating surfaces.
  • Monitor coolant levels closely during the first few operating cycles to confirm proper seating and initial system pressure stability.

Product Specifications

  • Primary Material: Aluminum alloy
  • Surface Finish: Black protective coating
  • Model Reference: BOP40
  • Country of Origin: Mainland China
  • Target Component: Cooling circuit thermostat connection bung

Fleet Compatibility

  • BMW 1 Series E87
  • BMW 3 Series E90, E91, E92, E93
  • BMW 5 Series E60, E61
  • BMW 7 Series E65, E66
  • BMW X3 E83, E83N
  • BMW X5 E70
  • BMW X6 E71

Package includes:

  • Complete aluminum thermostat bung adapter assembly

Safety Guidelines

Always allow the engine to reach ambient temperature before disconnecting lines or removing fasteners. Verify hose clamps and pressure ratings match manufacturer standards after fitting. Shop technicians recommend professional installation to preserve cooling efficiency and maintain compliance with workshop service procedures.

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