
This Gates belt drive pulley fits 2018–2021 International/Navistar LT Series A26 diesel water pump applications and replaces the OEM pulley to restore correct water pump belt routing. Specified for the listed engine and chassis, the pulley supports proper belt engagement and helps maintain accessory drive operation, serving as a like‑for‑like service part during routine cooling‑system or drive‑belt maintenance.
Gates 18-21 International/Navistar LT Series A26 Diesel Water Pump A Belt Drive Pulley