New Step Gap turbine & compressor seals (also known as Staggered Gap or Stepped Gap Seals) for Garrett GT3782VA (Ford Powerstroke 6.0) turbocharger. Will also fit GT37 GT40 GTA37 GT3782V GT3782VAS & GTA40 turbochargers. Replaces oem part numbers 408049-0023 & 403818-0046. Stepped gap seals are designed reduce oil blow by of the Turbine (rear) seal and the compressor seal and? are made to withstand extreme temperatures created by your turbocharger. The design having a stepped end ensures a gapless seal as the steps overlap reducing possible blow by past the seal and into the turbine housing or compressor housing. Eliminates smoking and oil consumption. As a stock seal wears the gap grows bigger, but Step Gap seals retain a gapless seal even after years of heavy use. Greatly reduces the power robbing deposits and residue inside your turbine housing and on your turbine wheel caused by oil leaking past the turbine seal. Provides the ultimate seal. Free shipping within the USA. Worldwide shipping is $7.75. Paypal accepted.