Mahle Coolant Pipe O-Ring for 2011-2026 Ford F-250 Super Duty/F-350 Super Duty/F-450 Super Duty/F-550 Super Duty/F-650 6.7L
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Mahle Coolant Pipe O-Ring (part number C33399) - a direct-fit replacement for the vehicles in the compatibility list below.
Fits 2015-2023 Ford/Lincoln models including F-150, Expedition, F-250 Super Duty, F-350 Super Duty, Navigator - 2.7L 3.3L 3.5L 5.0L.
Interchange / cross-reference: Motorcraft RTS-1085, Ford FL3Z-8590-B, Ford FL3Z-8590-A