Cooling Systems

The 2003–2007 6.0L Powerstroke is notorious for cracking the plastic factory coolant reservoir tank—often without warning. Symptoms include coolant smell, low coolant light, and white sweet-smelling residue under the hood. SPELAB's aluminum coolant reservoir ($149) replaces the weak factory tank with a durable, heat-resistant housing. Check the reservoir level weekly on 6.0L trucks—this failure can strand you fast.

Yes. The 2011–2016 6.7L Powerstroke coolant filtration system ($149, 25% off) extends the life of your coolant and protects the EGR cooler from scale buildup. Diesel coolant deteriorates over time—worn-out coolant causes corrosion and clogging in the small EGR cooler passages, a leading cause of the P0401 code and coolant loss. A $149 filter replacement every 2 years is far cheaper than a new EGR cooler.

A standard Coolant Hose Kit replaces cracked or soft factory hoses with reinforced silicone. A Coolant Reroute Kit goes further—on the 2011–2024 6.7L Powerstroke, it re-routes the EGR coolant flow path to reduce thermal stress on weak factory connections. The reroute kit ($135) prevents the most common failure: coolant leaking from the EGR valve housing into the intake manifold, causing white smoke and P0401 codes.

Yes—the coolant reservoir is one of the easiest cooling system replacements. Drain a small amount of coolant, disconnect the overflow hose and sensor connector, unbolt the factory tank, and bolt in the new aluminum SPELAB unit. The 6.4L reservoir ($198.99, 46% off) is especially worth upgrading since the factory unit cracks frequently under high under-hood temperatures. Budget 30–45 minutes with basic hand tools.

The SPELAB Coolant Tank Kit ($299, currently out of stock) fits the 2013–2018 Dodge Ram 2500/3500 6.7L Cummins. This truck's plastic factory coolant tank cracks under the high under-hood heat generated by the 6.7L's performance tuning. The aluminum replacement lasts the life of the truck. While out of stock, keep an eye on SPELAB's inventory—these sell out quickly during spring and summer towing season.