Caterpillar 24 Volt Magnetic Relay Switch 118-3534 is a air heater product that supports cold-start combustion by warming intake air. It is listed for Caterpillar heavy-equipment applications; use part number 118-3534 as the primary identification reference.
- Part Number: 118-3534
- Brand: Caterpillar
- Product Category: Air Heater
- Equipment Type: Off-Highway Truck, Power Module, Integrated Toolcarrier, Wheel Harvester, Motor Grader, Bulldozer
- Compatible Models: AD22, 3126, TR43-C18L, IT14G2, IT14G, IT28G, 550B, 560B, 772, 770, 793D, 798 AC, 785D, 789, 785, 793, 798, 777G, 789D, 796 AC, 794 AC, 773GC, 120H, 120K, 135H, 16M, 163H, 160, 140K, 140H
- Engine Models: C18
- Condition: New
Fitment can vary by machine configuration and serial-number range. Compare the original part number, dimensions, connectors and mounting points before purchase.





