HomeEmission Control > Evaporative SystemDorman 911-456 Vapor Canister Purge Valve
Part #: 911-456

Dorman 911-456 Vapor Canister Purge Valve

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6 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Acura and Honda, RSX and CR-V
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Direct Replacement Purge Valve for Honda and Acura

Dorman 911-456 is a vapor canister purge valve built as a direct replacement for the original equipment part. It is engineered for a precise fit and plug-and-play installation, with the correct connector and port layout for evaporative emissions service on select Honda and Acura models.

Compatible with 2002-2004 Acura RSX and 2002-2004 Honda CR-V, this purge valve supports the evaporative emissions system and helps the vehicle meet emissions requirements. The Dorman 911-456 is a practical OE-style solution when diagnosing EVAP faults on these applications.

Key Features

  • Direct replacement vapor canister purge valve for evaporative emissions repair
  • Fits 2002-2004 Acura RSX and 2002-2004 Honda CR-V
  • Rectangle connector with female connector gender and blade terminals
  • Two-port design with metal and plastic housing construction
  • Mounting points and dimensions matched for OE-style installation
  • Cross-references Standard Ignition CP571 for the same application

Detailed Description

This Dorman vapor canister purge valve is designed to replace the original purge valve in the EVAP system without modification. It features a 2-terminal blade connection, a rectangular 1-connector layout, and port sizing that aligns with the factory plumbing on the listed Honda and Acura vehicles. The housing combines metal and plastic materials for a service-ready replacement that follows the original fitment pattern. Part number 911-456 is a direct-fit option for technicians and DIY repairs focused on restoring proper purge control.

Use Dorman 911-456 when servicing a 2002-2004 Honda CR-V or 2002-2004 Acura RSX with an evaporative emissions concern. This part cross-references Standard Ignition CP571 for the same application.

Common Issues This Part May Address

  • Check engine light related to EVAP purge valve performance
  • Fuel vapor control faults in the evaporative emissions system
  • Rough idle or drivability concerns tied to purge valve leakage
  • Failed emissions inspection caused by purge system malfunction
  • Vacuum or vapor routing problems at the purge valve connection points

Installation Notes and Tips

Verify connector style, port orientation, and mounting hole spacing before installation. The Dorman 911-456 uses a female rectangular connector with blade terminals and a two-port layout, so matching the original routing is important for proper operation. Inspect the EVAP hoses and electrical connector for wear or damage during replacement to avoid repeat faults.

Quality Assurance

Dorman positions this purge valve as a direct OE replacement engineered for fit and plug-and-play installation. It is built to satisfy evaporative emissions system requirements for the listed applications and is intended to restore factory-style function on compatible Honda and Acura vehicles.

BrandDorman
Part Number911-456
Connector GenderFemale
Connector Hose Inside Diameter6.3
Connector Quantity1
Connector ShapeRectangle
Housing MaterialMetal
Housing MaterialPlastic
Inlet Inside Diameter4 mm
Length50 mm
Mount Hole Diameter5.8 mm
Mounting Hardware IncludedNo
Package Contents1 Purge Valve
Port 1 Outside Diameter6.3 mm
Port 2 Outside Diameter10.2 mm
Terminal GenderMale
Terminal Quantity2
Terminal TypeBlade

This part fits 6 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2004AcuraRSX2.0LL4N/A
2004HondaCR-V2.4LL4N/A
2003AcuraRSX2.0LL4N/A
2003HondaCR-V2.4LL4N/A
2002AcuraRSX2.0LL4N/A
2002HondaCR-V2.4LL4N/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

36162PNC005CP571

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.