Fitment
Fits 2013–2018 Dodge Ram 2500 and 3500 equipped with the 6.7L Cummins Turbo Diesel engine.
Notes: Designed for factory cooling systems on 6.7L Cummins applications. Compatible with stock and mildly modified trucks retaining the OEM cooling configuration.
Key Features
- Removes harmful casting sand, rust, and debris from coolant to protect critical engine components
- Heavy-duty billet aluminum filter base with durable powder-coated bracket for long-term corrosion resistance
- Complete bolt-on kit designed specifically for the 2013–2018 6.7L Cummins platform
- Helps extend water pump, radiator, heater core
- Backed by the Sinister Diesel Warranty for added peace of mind
Product Overview
The 6.7L Cummins cooling system is known to accumulate casting sand, silicates, rust particles, and other debris over time. These contaminants circulate through the engine, gradually clogging small coolant passages inside the radiator, engine block and heater core. As buildup increases, coolant flow is restricted, leading to elevated operating temperatures, reduced heater performance, premature water pump wear, and in severe cases, costly component failure.
The Sinister Diesel Coolant Filtration System adds a dedicated inline coolant filter to continuously remove contaminants before they can accumulate inside sensitive components. The system uses a high-quality spin-on filter mounted to a precision-machined billet aluminum base for durability and leak-free performance. By maintaining cleaner coolant, the system helps stabilize operating temperatures and significantly reduces long-term cooling system wear.
This kit is engineered as a direct bolt-on solution for 2013–2018 Dodge Ram 6.7L Cummins trucks. All brackets and hoses are designed for proper routing and secure mounting while maintaining OEM cooling system operation and flow characteristics.
Common Problems This Solves
- Overheating or fluctuating engine temperatures
- Clogged heater core resulting in weak cabin heat
- Premature water pump failure from abrasive coolant contamination
- Restricted coolant flow through radiator and engine block
- Repeat cooling system failures caused by debris left in the system after repairs
Service Interval
Follow OEM coolant service recommendations unless otherwise noted. Typical coolant filter replacement interval is every
15,000–20,000 miles or 12 months, depending on driving conditions, towing use, and overall coolant condition. The initial filter may require earlier replacement as it captures existing system contaminants.
What’s Included
- Billet aluminum coolant filter base
- Spin-on coolant filter
- Vehicle-specific mounting bracket
- Pre-formed coolant hoses and fittings
- All required installation hardware
- Installation instructions
FAQ
Why should I upgrade to this product?
A: The factory cooling system does not include a dedicated filtration system. Over time, debris circulates through the system and clogs critical components. This coolant filtration kit continuously removes contaminants, helping extend the life of your radiator, heater core, water pump and engine block.
Will this fit my truck?
A: This system fits 2013–2018 Ram 2500 and 3500 trucks equipped with the 6.7L Cummins diesel engine. It is designed for trucks retaining the factory cooling layout.
Is installation difficult?
A: Installation is straightforward and typically takes 1–2 hours using basic hand tools.
Will this affect performance or reliability?
A: The system maintains OEM coolant flow characteristics while improving long-term reliability. By removing contaminants, it helps stabilize temperatures and reduce wear on cooling components without altering factory engine performance.
How often should it be serviced?
A: The coolant filter should typically be replaced every 15,000–20,000 miles or once per year. The first filter may require earlier replacement depending on how much debris is present in the system.
What’s included in the kit?
A: The kit includes the billet aluminum filter base, spin-on coolant filter, mounting bracket, hoses, fittings, hardware, and installation instructions for a complete bolt-on installation.
Why Choose Sinister Diesel
Since 2009, Sinister Diesel has focused on eliminating known diesel failure points through real-world testing and proven engineering.
Our products are designed as long-term solutions—not temporary fixes—so you can drive with confidence knowing your truck is protected.
