Replacement O-Rings for Ford DR-3Z8566-A and 2x BC3Z-8590-F F150 coolant leak
***See my other listings for complete kit that includes coolant reservoir hose connector O-ring***
- Quantity (1) smaller O-ring used in the Ford part number DR3Z8566A T-CONNECTOR
- Quantity (2) larger O-rings used on upper and lower radiator hose quick connectors. Replaces Ford part number BC3Z-8590-F
The coolant quick connectors that Ford used on vehicles such as the F-150 are notorious for developing leaks over time, especially in cold weather.
The upper and lower radiator hoses on many F-150s use part number BC3Z-8590-F which is available from Ford Parts.
There is a smaller quick connector on the coolant T-connector that joins the upper radiator hose with the thermostat and water pump. The T-connector is part number DR3Z8566A. It contains an O-ring that is replaceable, but not available from Ford Parts; it is included in this kit.
This O-ring kit along with the Pegasus Reservoir Silicone Hose Kit is the solution to fixing these common leaks.