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Product Reviews
Vehicle Fit

This Vapor Canister Vent Valve is just what you need to get your vehicle's evaporate system working properly again. It mounts on top of the charcoal canister and controls the flow if vapors from the gas tank. Over time these can crack and cause leaks, or malfunction resulting in difficulty filling the gas tank. Some of the trouble codes associated with this part being defective are: P1456, P1448, 1443, P0449, and P0455.


  • Brand new component
  • Replaces dealer part numbers: 42084-FA120, 42084FA120
  • Canister mounted
  • Direct replacement
  • Built to strict quality control standards

This Vent Valve makes a great replacement and has good savings over a dealer part.

Item Condition: New

WARNING:  This product can expose you to chemicals including Lead and Lead Compounds, which are known to the State of California to cause cancer, and birth defects or other reproductive harm.  For more information, go to

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser.

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Customer Q&A
Ask a question to 1A Auto customers who purchased the product
Is this what makes the gas pump shut off every 80 cents?
Jon M May 13, 2016
Generally no. It can either be the pump at the station or maybe the vapor vent on the tank itself not releasing pressure as the gas rushes in. This part is not active when the vehicle is shut off.
Brian F May 13, 2016
Year Make Model Description
2004-2005Subaru Baja Subaru Baja Vapor Canister Vent Valve
1998-2004Subaru Forester Subaru Forester Vapor Canister Vent Valve
1998-2004Subaru Impreza Subaru Impreza Vapor Canister Vent Valve
1998-2004Subaru Impreza Outback Subaru Impreza Outback Vapor Canister Vent Valve
2002-2005Subaru Impreza WRX Subaru Impreza WRX Vapor Canister Vent Valve
2004-2005Subaru Impreza WRX STi Subaru Impreza WRX STi Vapor Canister Vent Valve
1999-2005Subaru Legacy Subaru Legacy Vapor Canister Vent Valve
2000-2005Subaru Outback Subaru Outback Vapor Canister Vent Valve H4 2.5L
Only 4 left in stock
Part #: 1AEMX00074

Order must be placed by 4pm ET

Get it in: 2 - 4 Business Days

Want it sooner? Choose Next Day Air at Checkout

How-to Video:

(07:43 min)