Fleece Performance Turbocharger Drain Tube

Fleece Performance Turbocharger Drain Tubes: Engineering a Better Oil Return

When a turbocharger fails prematurely, a restricted or leaking oil drain line is often the culprit. Fleece Performance Engineering — the Indiana-based diesel specialist known for its Cheetah turbochargers and PowerFlo lift pumps — applies that same engineering rigor to a component that is easy to overlook: the turbo drain tube. The result is a purpose-built solution that addresses the well-known shortcomings of the factory drain line and keeps your turbocharger properly lubricated for the long haul.

What Sets Fleece Performance Drain Tube Kits Apart

The stock turbo oil drain line on most diesel trucks is a rigid metal accordion-style tube that is prone to cracking and weeping over time — and is not really intended for repeated reuse. Fleece Performance completely rethinks the design. Their turbocharger drain tube kits feature a larger-inner-diameter smooth silicone hose that promotes unrestricted oil flow back to the block, paired with black anodized billet aluminum fittings with integrated O-rings to eliminate the leak points that plague OEM hardware. The flexible silicone construction also makes installation significantly easier compared to the factory rigid line.

Fleece's patent-pending drain hose design is a direct response to real-world diesel ownership challenges. By increasing the internal diameter of the drain path and replacing crimped metal hardware with precision-machined aluminum fittings, the kits ensure proper oil drainage and help prevent the oil pooling inside the turbo housing that leads to bearing failure and shaft seal damage.

Application-Specific Fitment Across Cummins Platforms

Fleece Performance offers drain tube kits tailored to specific Cummins applications rather than relying on one-size-fits-all solutions. Coverage includes the 5.9L Cummins (12V and 24V) with HX35 and HY35 factory turbochargers, the 6.7L Cummins with factory VGT turbochargers for 2007.5–2018 applications, and the 2019+ 6.7L Cummins platform. There is also a kit designed for builders swapping S300/S400-style turbochargers into Cummins-powered trucks, which uses braided stainless steel construction on the exterior with reinforced rubber tubing inside for maximum flexibility and durability.

Each kit is designed to be a complete solution. Depending on the application, contents typically include the drain tube itself, a Cummins turbo drain tube adapter, a drain flange adapter, a drain gasket, the appropriate AN fittings, and all required hardware — everything needed to properly connect the turbo drain back to the factory drain location on the block.

Why Fleece Performance Gets the Details Right

Fleece Performance Engineering has been an ISO 9001:2015 certified manufacturer since 2020, reflecting a manufacturing process built around consistent quality standards. Whether you are installing a factory replacement turbocharger or upgrading to one of Fleece's own Cheetah Series turbos, pairing it with a properly engineered drain tube is essential — and Fleece makes that pairing seamless, with kits explicitly designed for compatibility with both OEM and Fleece aftermarket turbocharger installations.