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Explore our Peterbilt 389 Coolant Reservoirs selection at 4 State Trucks, featuring brands like TPHD and BESTfit. Designed for durability and reliability, these reservoirs keep your engine cool and efficient. Find the perfect coolant replacement reservoir for your Peterbilt 389 and maintain smooth performance.

Peterbilt 389 Coolant Reservoirs

Ensure optimal cooling for your Peterbilt 389 with durable replacement reservoirs, coolant level sensors, and caps. Designed for Cummins and CAT engines, options include plastic reservoirs, sensors, and full replacement kits from top brands like BESTfit and TPHD. Keep your truck running smoothly with the right coolant reservoir for your model.