Gates
Emission Control Hose

Gates EMH031 Engine Crankcase Breather Hose - Valve Cover To Air Cleaner or Valve Cover To Intake Tube

Brand Gates EMH031
Position Valve Cover To Air Cleaner and Valve Cover To Intake Tube
Material Steel
Inside Diameter .25
Inside Diameter .3
Inside Diameter 6
Inside Diameter 8
Centerline Length 21
Centerline Length 533
Hose Quantity 2
End Type Push in
Grade Type Oe exact
Branch Quantity 0
Protective Sleeve Included No
Hardware Included No
9839 Yes
9845 0
9853 No
Product line Emission Control Hose
Fits Honda · 5 vehicles

OE exact replacement. Restores crankcase ventilation and emission control performance.

Steel construction. Built for durability and long service life.

Push-in ends simplify installation.

Cross-references Gates EMH031 and 171375BAA00 for the same application. See all 2.

$39.83Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.

Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $39.83
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Gates EMH031 Crankcase Breather Hose

The Gates EMH031 is an OE-exact engine crankcase breather hose built for emission control and crankcase ventilation service. It restores the hose path between the valve cover and the air cleaner or intake tube on select Honda Civic applications, helping return the emission system to proper operation.

Gates Emission Control Hose products are built around OE-style fit and material selection for dependable service in emission system repair. The EMH031 follows the original routing and connection style for a direct replacement on the listed Honda Civic models.

Key Features

  • OE-exact replacement for crankcase ventilation and emission control service
  • Steel construction for durability and service life
  • Push-in end type for factory-style connection points
  • Designed for the valve cover to air cleaner or valve cover to intake tube route
  • Direct replacement for Gates EMH031
  • Cross-reference: 171375BAA00

Detailed Description

This Gates EMH031 engine crankcase breather hose is made to match the original emission hose layout and restore proper crankcase ventilation flow. It is specified for 2016-2017 Honda Civic models at the valve cover to air cleaner position, and for 2018-2020 Honda Civic models at the valve cover to intake tube or valve cover to air cleaner position as listed. If you are searching for a Honda Civic crankcase breather hose, emission control hose, or OE-style replacement hose, this part number provides the correct application-focused solution.

By following the factory routing and connection style, the EMH031 supports a clean replacement for worn, cracked, or leaking emission hoses on the Honda Civic. The OE-exact grade helps maintain the original system layout without changing the intended hose path.

What It Helps Address

  • Cracked or hardened crankcase breather hose material
  • Vacuum leaks in the emission control hose path
  • Improper crankcase ventilation routing
  • Air leakage between the valve cover and air cleaner or intake tube
  • Emission system performance issues caused by hose deterioration

Installation Notes and Tips

Verify the hose routing on the vehicle before installation and match the connection points to the listed position. Inspect adjoining fittings and nearby vacuum or ventilation components for wear, contamination, or damage before installing the new hose. The push-in end design is intended to follow factory-style attachment points on the specified Honda Civic applications.

Quality Assurance

Gates manufactures this emission control hose as an OE-exact replacement using high-quality materials selected for durability and maximum service life. The EMH031 is built to restore the emission system to desired operation and performance on the listed Honda Civic applications.

This part fits 5 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersFuel TypePositionNotes
2020HondaCivic2.0LL4GASValve Cover To Air CleanerEmission Control Hose
2019HondaCivic2.0LL4GASValve Cover To Intake TubeEmission Control Hose
2018HondaCivic2.0LL4GASValve Cover To Intake TubeEmission Control Hose
2017HondaCivic2.0LL4GASValve Cover To Air CleanerEmission Control Hose
2016HondaCivic2.0LL4GASValve Cover To Air CleanerEmission Control Hose
Directly replaces or cross-references 2 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Gates — EMH031171375BAA00