The Cat® 171-8711 Coolant Flow Switch is a critical component designed to monitor the flow of coolant within Caterpillar engines, ensuring proper circulation and preventing potential overheating. This switch plays a vital role in maintaining engine health and efficiency across various heavy machinery applications.
| Feature | Specification |
|---|---|
| Part Number | 171-8711 |
| Alternate Part Number | 9X-7088 |
| Product Type | Coolant Flow Switch |
| Brand | Cat® |
| Function | Monitors coolant flow to prevent engine overheating |
| Voltage | 28 Volts DC |
| Connector Type | 2-pin |
| Temperature Range | -40°F to 249.8°F (-40°C to 121°C) |
| Dimensions | Length: 13.73 inches (34.88 cm); Width: 1.69 inches (4.29 cm) |
| Weight | Approximately 1 pound (0.45 kg) |
| Compatible Models | Engines: 3306, 3406, 3406B, 3406C, 3508; Tractors: D8N, D9N; Scrapers: 627E, 627F, 637E; Excavators: 5130; Track Loaders: 973; Wheel Tractor-Scrapers: 621E, 621S; Off-Highway Trucks: 777B, 777C; Pipelayers: 578; Compactors: 57H; and more. |
| Replacement Part Numbers | 9X-7088, CA1718711 |

















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