Subaru PCV Hose Redesign

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Subaru PCV Hose Redesign

Always order the most up-to-date replacement parts based on the specific model.

Underhood Service Staff Writers
By Underhood Service Staff Writers
  • 2020-2022 Legacy & Outback 
  • 2019-2022 Ascent 
  • With the 2.4L Turbo

This bulletin announces a design change made to the Positive Crankcase Ventilation (PCV) hose assembly. Enlarged clamps and a reinforced PCV hose material have been incorporated into production to address rare cases of odor coming from the engine compartment. A customer may describe this as a hot rubber, raw fuel or hot oil-type odor. If confirmed, replace the PCV hose assembly and the associated clamps with the new parts. The new PCV hose assemblies were incorporated into vehicle production starting with Legacy N3012316, Outback N3180978 and Ascent N3415317. Always order the most up-to-date replacement parts based on the specific. The latest part number:

Related Articles

  • Hose Assembly-PCV 11815AC88D 
  • Gasket-Intercooler 21896AA130 
  • Gasket-Air Intake Duct 14497AA080

The new clamps are included with the new PCV hose assembly. Do not re-use the original PCV hose clamps. Only use the new clamps that come with the NEW PCV hose assembly.

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