Extend Engine Life with Clean Coolant
Protect your diesel engine from harmful contaminants with our premium coolant bypass filtration systems that remove casting sand, metal particles, and other debris.
Advanced Coolant Filtration Technology
Our coolant bypass kits provide superior filtration to protect your engine's while providing less downtime, helps avoid EGR cooler failure, prolong radiator and water pump lifespan
CNC-Machined Billet Aluminum Construction
Each Sinister Diesel coolant filter kit features precision CNC-machined billet aluminum components designed for maximum durability and leak-free performance.
- Aerospace-grade 6061 billet aluminum filter block
- High-strength, abrasion-resistant silicone hoses
- Molded silicone T-connectors for reduced failure points
- Nickel-plated ball valves for corrosion resistance
Extended Component Life
Protects water pump bearings, EGR coolers, oil coolers, and other critical components from abrasive damage caused by contaminants.
Optimal Coolant Flow
Bypass design maintains proper coolant circulation while filtering out harmful particles that can restrict flow.
Easy Maintenance
Simple spin-on filter changes with recommended intervals to keep your cooling system clean with minimal effort.
Why You Need A Coolant Filtration
Factory cooling systems have no filtration, allowing harmful contaminants to circulate through your engine. These include:
- Casting sand leftover from manufacturing
- Metal shavings and rust particles
- Mineral deposits and scale
- Debris from component wear
Our bypass system gradually cleans the entire coolant supply while maintaining optimal flow and temperature regulation. Our system provides extended life to components that touch coolant, like your radiator, egr cooler and water pump.
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Engine-Specific Coolant Filtration Kits
Select your engine to find the perfect coolant filtration solution
Ford Powerstroke
Ram Cummins
Chevy/GMC Duramax
Universal Kits
What Our Customers Say
Trusted by diesel enthusiasts and professionals alike
★★★★★
"Awesome product. Not only does it look sick but also keeps my coolant clean"
★★★★★
"Easy to install, great product to protect your engine"
★★★★★
"Good Quality Parts, I like the molded hose."
★★★★★
"Vehicle specific kit. Well packaged with clear instructions"
★★★★★
"Quality product. Everything you need is in the box. No complaints."
Frequently Asked Questions
Everything you need to know about our coolant filtration systems
Installation & Maintenance
How long does installation take?
Most installations take approximately 2 hours. The kit mounts using existing factory holes with no drilling required, and all necessary hardware is included.
What's the maintenance schedule?
Replace the first filter at 500 miles, the second and third at 3,000 miles each. After the initial three changes, replace the filter annually or with each coolant flush.
Performance & Benefits
Why do I need coolant filtration?
Factory engines often contain casting sand and metal particles that can damage cooling system components. Our system removes these contaminants to prevent premature failure.
Does it affect coolant flow?
No, the bypass design maintains optimal coolant flow while filtering a portion of the coolant to gradually clean the entire system.
Protect Your Cooling System Today
Join thousands of diesel owners who trust Sinister Diesel for premium coolant filtration solutions that extend engine life and prevent costly repairs.
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