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PPE High Performance Silicone Hose 4"-3.5" Diameter 3" Reducer

Silicone Hose Reducer by PPE®. Inside Diameter: 3.5"-3". Size: 6 mm 5 PLY. Replace your intercooler boots or almost any other boot or hose on your truck with a set of upgraded heavy-duty Silicon Hoses from PPE. PPE’s Silicone Hoses are constructed using Fluorocarbon lined, silicon rubber that is strengthened with five plies of poly-fibers. This design results in a hose that resists fuel, oil, UV, ozone and various other chemicals, plus it has a burst rating of over 200 psi from negative 76 degrees to 437 degrees Fahrenheit. To keep your engine cool and improve your vehicle's performance, this product is just the right solution. Manufactured from high-quality materials, it will surely provide excellent performance and years of trouble-free service.


  • Working Pressure: 70 psi - BAR 4.8
  • Burst Pressure: 207 psi - BAR 14.3
  • UV and Ozone resistant
  • Handles high boost pressures, oil and fuel, high temp
  • Higher flow and better lubricity than rubber


  • Coupler Type: Straight
  • Material: Silicone
  • Finish: Black
  • Length: 3.000"
  • Inlet Diameter: 3.500"
  • Outlet Diameter: 3.000"
  • Thickness: 6mm 5 ply

PPE part number 515403503 (replaces part number 515403500).

Lame California Prop 65 Notice
Tags: PPE , High , Performance , Silicone , Hose , 4 , 3.5 , Diameter , 3 , Reducer