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Powering School Bus Engine Block Heaters – Safely & Efficiently

Ensure quick winter starts and reduce engine wear CSA Approved For Caterpillar, Detroit Diesel, International/Navistar, and Perkins engines. See Zero

Zerostart 8605556 Heavy Duty Engine Block Immersion Heater for Caterpillar, Detroit Diesel, International/Navistar and Perkins Engines, 1 NPT Thread