#3 Tube Sleeve #3 Steel (2pk)

The #3 Tube Sleeve #3 Steel (2pk) by EARLS is a professional-grade fitting component engineered for high-pressure hydraulic and fuel line assemblies. This two-pack contains nickel-plated steel tube sleeves designed to secure 3 AN (3/16 inch) tubing connections in demanding fluid transfer applications. Professionals in motorsports, aerospace, racing, and industrial hydraulics rely on EARLS tube sleeves to maintain leak-free, vibration-resistant connections under extreme pressure and temperature cycling.

Constructed from precision-formed steel with nickel plating, the #3 Tube Sleeve offers superior corrosion resistance and durability in both wet and dry environments. The nickel-plated finish prevents oxidation and ensures smooth insertion into AN fittings without galling or binding. Each sleeve is manufactured to exacting tolerances to create a consistent, reliable seal when compressed by the fitting body, effectively distributing clamping force evenly across the tube wall. This engineering prevents tube deformation and maintains structural integrity even under sustained high-pressure cycles.

Technicians and engine builders routinely specify EARLS tube sleeves for brake lines, fuel injection systems, transmission cooler lines, and turbo boost circuits where reliability is non-negotiable. The two-pack format accommodates dual-line installations or provides backup sleeves for service and maintenance. Compatible with all standard 3 AN male fittings and 3/16 inch tubing, these sleeves install quickly without specialized tools and deliver consistent performance across automotive, agricultural, and industrial hydraulic systems.