Genuine 12518611289 Engine Coolant Thermostat Adapter Lead

Brand Genuine 12518611289
Fits Mini · 5 vehicles

Thermostat adapter lead. A genuine replacement part for the cooling system.

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Engine Coolant Thermostat Adapter Lead for MINI

Genuine part number 12518611289 is an engine coolant thermostat adapter lead used to adapt the newer thermostat design to the older harness on select MINI Cooper and MINI Cooper Countryman models. It is a direct-fit electrical adapter lead for specific 2010-2012 applications with the noted harness and thermostat configuration.

Key Features

  • Genuine OEM thermostat adapter lead
  • Part number 12518611289
  • Used to adapt the newer thermostat design to the older harness
  • One long and one short lead configuration
  • Fits select MINI Cooper and MINI Cooper Countryman models

Fitment Details

  • Fits 2012 MINI Cooper, N/A — Thru 3/2012; one long and one short lead; used to adapt the newer thermostat design to the older harness.
  • Fits 2012 MINI Cooper Countryman, N/A — Through 7/2012; one long and one short lead; used to adapt the newer thermostat design to the older harness.
  • Fits 2011 MINI Cooper, N/A — One long and one short lead; used to adapt the newer thermostat design to the older harness.
  • Fits 2011 MINI Cooper Countryman, N/A — One long and one short lead; used to adapt the newer thermostat design to the older harness.
  • Fits 2010 MINI Cooper, N/A — From 8/2010; one long and one short lead; used to adapt the newer thermostat design to the older harness.

What It Is Used For

  • Thermostat connector mismatch after a cooling system update
  • Replacing a damaged or incorrect thermostat adapter lead
  • Restoring proper electrical connection at the thermostat housing
  • Addressing fitment issues on MINI Cooper cooling system repairs

Installation Notes and Tips

Verify the vehicle build date and thermostat connector style before ordering. This part number 12518611289 is specific to the listed MINI Cooper and MINI Cooper Countryman applications, so match the harness and thermostat design to the fitment notes before installation.

Quality Assurance

Genuine OEM replacement part for the listed applications, supplied under the Genuine brand.

This part fits 5 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2012MiniCooperN/AOne Long and One Short Lead; Thru 3/2012; Used to Adapt the Newer Thermostat Design to the Older Harness
2012MiniCooper CountrymanN/AOne Long and One Short Lead; Through 7/2012; Used to Adapt the Newer Thermostat Design to the Older Harness
2011MiniCooperN/AOne Long and One Short Lead; Used to Adapt the Newer Thermostat Design to the Older Harness
2011MiniCooper CountrymanN/AOne Long and One Short Lead; Used to Adapt the Newer Thermostat Design to the Older Harness
2010MiniCooperN/AFrom 8/2010; One Long and One Short Lead; Used to Adapt the Newer Thermostat Design to the Older Harness