DR3Z-8566-A & BC3Z-8590-F Radiator Hose & Coolant Tee O-Ring Kit — 1 Small + 2 Large NBR Rings (Size-Matched to DR3Z-8566-A & BC3Z-8590-F)

This 3-piece kit contains: 1 small O-ring (size-matched to DR3Z-8566-A, typically used at coolant Y/T connectors) and 2 large O-rings (size-matched to BC3Z-8590-F, typically used at radiator hose quick-connect ports). All are general-purpose nitrile (NBR) rubber rings. Intended for low-pressure coolant circuit maintenance — clean mating surfaces before installation. Not vehicle-specific. Not certified for pressurized, high-temperature, or safety-critical applications.

• 🔹Includes exactly: 1 small O-ring (dimensionally matched to DR3Z-8566-A) + 2 large O-rings (matched to BC3Z-8590-F)
• 🔹 Made from standard nitrile rubber (NBR) — flexible, resilient, and suited for under-hood maintenance environments
• 🔹 Designed for low-pressure coolant hose connections & Y/T-style coolant fittings — no tools or adhesives needed
• 🔹 Install after cleaning tube surfaces thoroughly — debris may affect seating, even with correct sizing
• 🔹 For routine O-ring replacement only — not intended for high-pressure, high-temp, or safety-critical systems
• 【Fit Models】- The engine radiator coolant hose O-ring kit fit for Ford Expedition 2015-2017 3.5L 6Cyl, for Ford 2018 F-150 3.3L 6Cyl, for Ford 2011-2018 F-150 3.5L 6Cyl, for Ford 2011-2014 F-150 3.7L 6Cyl, for Ford 2011-2018 F-150 5.0L 8Cyl, for Ford 2011-2018 F-250 Super Duty 6.7L 8Cyl, for Ford 2011-2018 F-350 Super Duty 6.7L 8Cyl, for Lincoln Navigator 2015-2017 3.5L 6Cyl.