Replacement flexible rubber pump component engineered for reliable water flow in marine and industrial pump systems. Key benefits Direct compatibility: Compatible with 10077K CEF 500166 and ONAN 1320379 models. Suitable for use with ONAN 01320498 and 05411519 engine pumps. Fits JMP 7110 DJ 08321201 marine water pump assemblies. Restores pump performance: Flexible rubber construction ensures a tight fit and consistent water movement, helping to stop leaks, prevent cavitation, and maintain cooling circulation. Durable and resilient material: Made from flexible rubber for reliable performance under repeated flexing and typical marine/industrial operating conditions. Simple maintenance: Designed for quick replacement with standard hand tools so you can complete repairs or routine maintenance without specialty equipment, minimizing downtime. Broad application: Works in both marine cooling systems and industrial pump setups where the listed assemblies and engine pump models are used. What it does Replaces the worn rubber element in compatible water pump assemblies to restore intended flow paths and sealing function. Preserves pump efficiency and helps protect engines and downstream equipment from overheating or reduced coolant flow. Practical use scenarios Scheduled maintenance on a recreational boat: swap the worn rubber part during a winter service to ensure reliable engine cooling next season. Ondeck emergency : perform a field replacement with basic hand tools to restore circulation and get the vessel back underway. Industrial equipment service: the rubber element in compatible pump assemblies in a workshop or plant to maintain cooling or process water flow. Compatibility and fit Matches the models listed above; sized to fit JMP 7110 DJ 08321201 assemblies and the specified ONAN and CEF models. Confirm model numbers before ordering to ensure proper fit. Installation and care Installable with standard hand tools. Inspect regularly for wear, cracking, or loss of flexibility and as part of routine pump maintenance.