- ❄️ Product
ENGINE COOLANT
& ANTIFREEZE FILTERS
Engine cooling systems in heavy-duty diesel applications face continuous threats from cavitation erosion, mineral scale, and electrochemical corrosion. Donaldson coolant filters maintain the chemical balance of cooling circuits through controlled release of supplemental coolant additives.
- Spin-on Coolant Filters
- SCA Additive Release
- Cartridge Assemblies
- Extended Drain
Key Features & Applications
💥Cavitation Erosion Prevention
High-frequency pressure pulses cause microscopic pitting on cylinder liner surfaces. Donaldson coolant filters with SCA replenishment maintain inhibitor levels required to prevent cavitation damage.
🧪SCA Additive Management
Filter elements release precise, controlled doses of supplemental coolant additives throughout the service interval — eliminating manual dosing and ensuring consistent corrosion protection.
🚫Scale & Corrosion Control
Mineral scale reduces heat transfer efficiency and can block cooling passages. Proper filtration extends radiator, heat exchanger, and water pump service life significantly.
📅Extended Drain Programmes
Donaldson coolant filter programmes support extended drain intervals for large fleets, reducing lubricant disposal volume and total coolant management cost.
