HomeEmission Control > Crankcase Ventilation SystemGates EMH223 Engine Crankcase Breather Hose - Valve Cover To Tube
Part #: EMH223

Gates EMH223 Engine Crankcase Breather Hose - Valve Cover To Tube

Emission Control Hose, Valve Cover To Tube
8 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Emission Control Hose, Valve Cover To Tube
Fitment: Audi and Volkswagen, A4, A4 Quattro, and Passat
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Overview of Gates Emission Control Hose EMH223

The Gates Emission Control Hose EMH223 is designed for reliable crankcase ventilation in select Audi and Volkswagen models. Engineered with precision, this engine crankcase breather hose ensures proper emission control and ventilation system performance.

  • Material: Durable plastic construction
  • Inside Diameter: 0.77 inches (20 mm)
  • Centerline Length: 5 inches (127 mm)
  • End Type: Push-in connectors on all ends
  • Quantity: Single hose with one branch
  • Molded design for precise fitment
  • No protective sleeve or hardware included

About the Gates Emission Control Hose Product Line

The Emission Control Hose line by Gates focuses on components critical to maintaining proper crankcase ventilation and emission system integrity. This product line is engineered to meet OEM specifications, providing consistent performance and durability for emission control applications. The EMH223 hose is part of this line, designed specifically to support the crankcase breather system in compatible vehicles.

Detailed Product Description

The EMH223 engine crankcase breather hose is molded from high-quality plastic to ensure resistance to heat and chemical exposure typical in engine compartments. With a consistent inside diameter of 0.77 inches (20 mm) and a centerline length of 5 inches (127 mm), it fits precisely within the crankcase ventilation system. Both ends and the branch feature push-in connectors, facilitating secure and straightforward installation without additional hardware. This hose is intended for use in emission control systems of Audi A4, Audi A4 Quattro, and Volkswagen Passat models, ensuring proper ventilation and emission gas routing.

Common Applications and Issues Addressed

  • Replacement of cracked or brittle crankcase breather hoses
  • Resolving vacuum leaks causing rough engine idle or performance issues
  • Preventing oil vapor leaks that can trigger emission system faults
  • Maintaining proper crankcase pressure to avoid engine damage
  • Ensuring compliance with emission control standards in Audi and Volkswagen vehicles

Installation Notes and Tips

  • Verify compatibility with Audi A4, A4 Quattro, or Volkswagen Passat before installation
  • Ensure all push-in connections are fully seated to prevent leaks
  • Inspect surrounding components for wear or damage during replacement
  • Use appropriate tools to avoid damaging the plastic hose ends
  • Replace any associated clamps or fittings if worn or corroded

Quality Assurance and Warranty

Gates manufactures the EMH223 hose to meet strict quality standards, ensuring durability and reliable performance in emission control systems. This part is molded for precise fitment and constructed from materials designed to withstand engine compartment conditions. While specific warranty details are not provided, Gates products typically come with manufacturer-backed quality assurance to support long-term use in compatible Audi and Volkswagen vehicles.

BrandGates
Part NumberEMH223
PositionEmission Control Hose, Valve Cover To Tube
0
No
Yes
Branch Quantity1
Centerline Length5
Centerline Length127
Centerline Length (in)5
Centerline Length (mm)127
End 1 TypePush In
End 2 TypePush In
End 3 TypePush In
End TypePush In
Hardware IncludedNo
Hardware IncludedNo
Hose Quantity1
Inside Diameter.77
Inside Diameter20
Inside Diameter 1 (in).77
Inside Diameter 1 (mm)20
Inside Diameter 2 (in).77
Inside Diameter 2 (mm)20
Inside Diameter 3 (in).77
Inside Diameter 3 (mm)20
MaterialPlastic
MaterialPlastic
MoldedYes
Number of Branches1
Number of Hoses1
Number of Quick Connectors0
OE Comparison RatingOE Exact
PCV ValveNo
Protective SleeveNo
Protective Sleeve IncludedNo

This part fits 8 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2002AudiA41.8LL4GASValve Cover To TubeEmission Control Hose
2002AudiA4 Quattro1.8LL4GASValve Cover To TubeEmission Control Hose
2002VolkswagenPassat1.8LL4GASValve Cover To TubeEmission Control Hose
2002VolkswagenPassat4.0LW8GASValve Cover To TubeEmission Control Hose
2001AudiA41.8LL4GASValve Cover To TubeEmission Control Hose
2001AudiA4 Quattro1.8LL4GASValve Cover To TubeEmission Control Hose
2001VolkswagenPassat1.8LL4GASValve Cover To TubeEmission Control Hose
2000VolkswagenPassat1.8LL4GASValve Cover To TubeEmission Control Hose

* 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:

06B 103 221A06B 103 221B06B103221A06B103221B06B103221PABV0177EMH223R25747

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