Product Description
Cummins 3690234 water pump O-ring seal for compatible ISX15 and X15 diesel engines. Designed to provide a secure seal at the water pump connection, helping prevent coolant leakage and maintain proper engine cooling system operation.
The PAI 121433 replacement features a 5.109-inch inside diameter, 0.139-inch cross-section, and Viton sealing material. It corresponds to AS568A-251 sizing.
Cross-references PAI 121433.
Verify engine model, serial number, water pump configuration, seal dimensions, and original equipment part number before ordering. Sold individually unless otherwise specified.
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