The objectives of diesel engine coolant filters, also known as water filters, are to remove contaminants from the engine cooling system and add chemicals to the coolant itself to replenish important protectants that may be lost over time.
Baldwin Filters® offers a complete line of Supplemental Coolant Additives (SCAs) and products to help you maintain your diesel engine cooling system. Baldwin’s coolant spin-on filters with Balanced Treatment Additive (BTA PLUS™) designed to protect the engine and enhance its performance. BTA PLUS is a phosphate/molybdate/nitrite-based inhibitor designed for use in plain water or in up to 60 percent antifreeze solutions.
• Proudly designed and manufactured in the United States to the highest quality and performance standards
• Baldwin coolant filters with supplemental chemicals are designed to meet or exceed original equipment performance to provide the required level of protection and maintain warranty coverage
• Heavy-duty, on-highway transportation
• Commercial trucks and buses
Engine Coolant Filter
Coolant Spin-on with BTA PLUS Formula
4 3/8 to 7 5/32
111.1 to 181.8
0.979 to 2.075
Outside Diameter (inch)
3 11/16 to 3 3/4
Outside Diameter (mm)
93.7 to 95.3