LS Transmission Cooler Line Kit for 6L80E/10L90E Swaps
Installing an LS transmission into an older frame often creates tight routing challenges that can compromise coolant flow and lead to overheating. This Transmission Cooler Line Kit - 6L80E-10L90E provides a ready to install solution for 6L80E, 6L90E, 8L90E and 10L90E setups with stainless steel braided hoses and precision fittings for leak free operation even under severe load. A billet transmission manifold mounts directly to the tail housing to simplify setup without drilling or cutting and ensure consistent fluid circulation and long term reliability in your swap project.
Custom Fitment for GM 6L80E through 10L90E Transmissions
This kit is engineered to match the exact port locations and fluid paths of the GM 6L80E, 6L90E, 8L90E and 10L90E transmissions, eliminating guesswork during installation. By aligning the cooler lines with factory mounting points, it prevents kinks and bends that can restrict flow under load. The precise routing also minimizes hose stress, reducing the risk of premature wear and ensuring your transmission receives consistent cooling even during intense driving sessions.
Stainless Steel Braided Hoses for Maximum Durability
Each hose is constructed from stainless steel braid over a PTFE inner lining and finished with a black protective cover that shields against heat and chemical exposure. This combination yields hoses that resist abrasion, swelling and pressure fatigue, preserving their shape and integrity over thousands of miles. The result is a transmission cooling line that maintains stable performance in both track conditions and daily driving without risk of hose collapse or burst.
Precision Fittings for Leakproof Fluid Management
All fittings in this kit undergo exacting CNC machining to ensure thread form and sealing surfaces meet tight tolerances. This precision fit prevents seepage at connection points, maintaining full system pressure and consistent fluid delivery through the cooler. Leakproof operation not only protects internal components from heat damage but also eliminates the need for frequent inspections and retorquing during service intervals.
Billet Transmission Manifold Streamlining Installation
The CNC-machined billet aluminum manifold bolts directly to the transmission tail housing, providing dedicated outlets for both the feed and return lines without modifying the case. Internal flow passages are contoured to promote even temperature distribution and reduce turbulence, optimizing heat transfer through the cooler. Mechanics benefit from a straightforward setup that cuts installation time and avoids the uncertainty of custom brackets or drilling.
This kit delivers reliable cooling and consistent performance under all driving conditions.