LS Transmission Cooler Line Kit for 4L80E Swaps
For LS swaps equipped with a 4L80E transmission, maintaining cooler fluid flow across the chassis is a common challenge and this cooler line kit delivers precise routing to keep fluid moving efficiently through radiator circuits. Braided stainless steel hoses resist engine heat and abrasion while precision formed fittings create a leak free seal at both transmission and radiator ports so vibration and thermal cycles cannot compromise fluid integrity. By minimizing sharp bends and aligning with factory ports on 4L80E and 4L85E boxes, installation in tight engine bays becomes straightforward and transmission temperatures remain steady during towing or track use.
Stainless Steel Braid for Unmatched Hose Durability
The stainless steel braid encasing each transmission line acts as a robust shield against heat soak and road debris, preserving the hose core under extreme conditions. By resisting abrasion from contact with chassis components or sharp edges, the braid maintains consistent wall integrity and prevents bulging when system pressure spikes. Its inherent flexibility allows installers to route lines around tight engine-bay obstacles without crimping, while still providing a firm barrier that stands up to constant vibration. Over repeated heat cycles, the braid retains its shape and strength, ensuring the flow path remains unobstructed and service life is extended. This durable housing is essential for towing or track use, where hoses face continuous mechanical stress and elevated temperatures.
Precision CNC Fittings for Leak Free Sealability
Each fitting in this kit is crafted through CNC machining to exact tolerances, ensuring metal-to-metal mating surfaces align perfectly with transmission and radiator ports. When properly torqued, the fittings compress sealing gaskets evenly, eliminating gaps that could lead to fluid loss or air ingestion during thermal cycling. The precise thread pitch matches factory specifications, preventing cross-threading and allowing technicians to achieve a consistent seal on the first attempt. This attention to detail in the connector geometry also limits movement under vibration, preserving line integrity even during heavy acceleration or on rough roads. As a result, drivers benefit from stable fluid levels and predictable transmission performance without the worry of slow leaks.
Optimized Fluid Routing to Maximize Cooling Efficiency
The cooler line layout is engineered to minimize abrupt bends and prevent flow disruption, promoting a smooth path for transmission fluid between the 4L80E/4L85E unit and radiator. By reducing turbulence and eliminating hotspots, the system delivers more uniform heat transfer and maintains optimal transmission temperature under load. This continuous, steady flow is crucial when towing heavy trailers or driving on a race circuit, since heat spikes can accelerate wear on torque converter components. The streamlined routing also keeps hoses clear of exhaust headers and suspension linkages, reducing the risk of chafing or accidental contact. A tidy under-hood appearance complements the functional gains, reflecting a design that prioritizes both form and performance.
Comprehensive Kit Integration for Rapid Installation
This transmission cooler line kit includes everything needed for a complete install: braided hoses, precision fittings, high-quality seals and installation hardware. By providing factory-style components in one package, builders avoid time-consuming trips to source adapters or mismatched parts. The direct-fit connections align with factory ports on both 4L80E and 4L85E transmissions, simplifying workflow and reducing the chance of assembly errors. Technicians can install and leak-test the system in minimal time, freeing up valuable shop hours to fine-tune other aspects of the swap. With the plumbing in place and verified, attention shifts to final calibration and performance testing with confidence in system reliability.
Engineered for precise fit and lasting performance in LS swap installations with consistent reliability.