Caterpillar Heater Lines Manifold 449-7688 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 449-7688 as the primary identification reference.
- Part Number: 449-7688
- Brand: Caterpillar
- Product Category: Engine Block Heater
- Equipment Type: Bulldozer, Pipelayer
- Compatible Models: D9T, D8T, D6T, D8 XE, D6 XE, D9, D7E, D6XE, D6, D8, D7, PL72, PL83, PL87
- Engine Models: Confirm by equipment serial number
- Condition: New
Fitment can vary by machine configuration and serial-number range. Compare the original part number, dimensions, connectors and mounting points before purchase.





