SRF Turbo Coolant Fitting Assembly SRF-L5P-TCFA-1719 | 2017-2019 Duramax 6.6L L5P

Square Root Fabrication L5P Duramax Turbo Coolant Fitting

The Square Root Fabrication L5P Duramax Turbo Coolant Fitting is a much-needed preventative upgrade for your truck.

As L5Ps age and accumulate heat cycles, factory components are prone to failure. One common failure point is the factory coolant tube on the left-hand side of the turbocharger. This line often breaks near the welded area by the bolted flange.

When this line cracks or ruptures, it can leave you stranded and force you into costly repairs, emergency roadside fixes, or even a tow. Replacing it with the Square Root Fabrication fitting helps prevent these failures and provides peace of mind for your Duramax.