Caterpillar Engine Coolant Heater Fuse 8U-6379 is a engine block heater product that supports cold-weather engine starting by warming coolant or the engine block. It is listed for Caterpillar heavy-equipment applications; use part number 8U-6379 as the primary identification reference.
- Part Number: 8U-6379
- Brand: Caterpillar
- Product Category: Engine Block Heater
- Equipment Type: Forwarder, Generator Set, Asphalt Paver, Wheel Harvester, Excavator, Motor Grader
- Compatible Models: 574B, 574, 564, 554, C32, C27, 3412C, AP-300D, AP-255E, 550B, 560B, 570B, 580B, 550, 570, 580, 206B, 205B, 212B, 211B, 120M, 966H
- Engine Models: C32, C27
- Condition: New
Fitment can vary by machine configuration and serial-number range. Compare the original part number, dimensions, connectors and mounting points before purchase.





