SRF Turbo Coolant Fitting Assembly SRF-L5P-TCFA-20 | 2020-2025 Duramax 6.6L L5P

Square Root Fabrication L5P Duramax Turbo Coolant Fitting

The factory coolant tube on the left-hand side of the turbocharger has proven to be a failure point as L5P Duramax trucks age and accumulate heat cycles. This line often cracks near the welded area by the flange, leaving you stranded and searching for an expensive OEM replacement.

Avoid unexpected breakdowns and costly repairs with the Square Root Fabrication Billet Aluminum Replacement. Built to last, this upgraded fitting ensures reliability and peace of mind for your L5P.

• Direct replacement for GM part #12691899
• Billet aluminum construction for superior strength
• Prevents common rupture/crack failures of the factory line
• Essential preventative upgrade for modified or aging L5P Duramax engines