GORE® Automotive Vents for Motors

Automotive motor vents from Gore can help to ensure that a starter will start, a wiper will wipe, and a pump will pump - as reliably and durably as the designer intends and the customer demands. Our venting solutions are designed to optimize performance and minimize warranty claims.

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+55 11 5502 7800


+86 21 5172 8299


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+91 22 6768 7000


+39 045 6209 240


+81 3 6746 2570


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Resource Library

GORE<sup>®</sup> Automotive Vents - Electronics - Brochure

Automotive Vents Automotive Electronics

An overview of venting electronic components for hybrid, EV and combustion-powered vehicles. Charts quantify how GORE Automotive Vents protect against damage from thermal shock, altitude and temperature changes, and heat build-up. Scenarios include engine start-ups, driving, and aftereffects of engine shut-off.

All Resources For GORE® Automotive Vents for Motors


Whether you’re designing or supplying a wiper motor, a starter motor or an electric pump motor, your components need protection from environmental challenges — dirt, dust, water and automotive fluids - that can create performance problems for motors.

Microporous ePTFE vents from Gore protect automotive components from the elements while providing high airflow. Tier-1 global suppliers rely upon our vents to:

  • block dirt and dust particulates from infiltrating housings and reducing efficiency
  • effectively reduce condensation and prevent ingress of water, rain and harsh automotive fluids
  • rapidly equalize pressure differentials, reducing stress and wear and extending service life

No two applications are exactly alike. Because of our expertise in ePTFE, we can customize our solutions to meet customers’ applications, designs and requirements. By collaborating closely with suppliers, we can engineer the right venting solutions that perform reliably in even the harshest conditions.

Product Comparison

Gore offers qualified vents for motor applications. We extensively test and evaluate each vent to ensure it performs consistently and reliably.

These are some of our most popular vents for motor applications. Contact us to discuss your application and we’ll evaluate the requirements and match them to a standard or custom venting product.

  Adhesive Vents Weldable Vents Weldable Vents
  AVS44S, AVS98S, AVS99, AVS107S


AVS25, AVS26, AVS28, AVS29, AVS39


AVS47, AVS48, AVS49, AVS50, AVS51, AVS52


Series number AVS 44 (S), 98 (S), 99, 107 (S) AVS 25, 26, 28, 29, 39 AVS 47, 48, 49, 50, 51, 52
Description Grey circular vent with pressure sensitive silicone adhesive/All ePTFE membrane construction without backing material/Available in automated installation configuration White circular cut part vent for welding installation/All ePTFE membrane construction without backing material White circular cut part vent for welding installation/3-layer sandwich construction with PET subport material
Housing Material N/A N/A N/A
O-ring material N/A N/A N/A
O-ring color N/A N/A N/A
Outside diameter 7.00 up to 19.05 mm 5.20 up to 14 mm 5.20 up to 14 mm
Operating temperature Tmin = −40 °C
Tmax = +150 °C
Tmin = −40 °C
Tmax = +160 °C
Tmin = −40 °C
Tmax = +125 °C
Water entry pressure > 34.5 kPa / 60 seconds > 60 kPa / 30 seconds > 60 kPa / 30 seconds
Typical airflow ~ 7 l/h/cm2
@ 7kPa

@ 1.22kPa
~ 9.6 l / h / cm2 at 7 kPa

≙ ~ 28 cm3 / min at 1.22 kPa
~ 32.5 l / h / cm2 at 7 kPa

≙ ~ 94 cm3 / min at 1.22 kPa
Ingress protection class depending upon proper housing geometry depending upon proper housing geometry depending upon proper housing geometry
Membrane characteristics Hydrophobic and Oleophobic Hydrophobic and Oleophobic Hydrophobic and Oleophobic
Enclosure size Medium to Large Small to Medium Small to Large
Electronics Housing Material All typical metal and plastic housing materials Most typical plastic housing materials Most typical plastic housing materials
Installation direction From outside of housing From the inside or outside of housing From the inside or outside of housing
Datasheets GORE Automotive Vents - Adhesive Vents: AVS 44 (S), 98 (S), 99, 107 (S) - Data Sheet GORE® Automotive Vents - Weldable Series: AVS 47, 49, 50, 51, 52 and AVS 26, 108, 39, 28, 29



Wiper motors, electronic pump motors and starter motors each have specialized application requirements that must be met to ensure performance and reliability. Common challenges include extreme temperatures and pressure fluctuations, which can impact operations.

For each set of challenges, GORE Automotive Vents for Motors reliably meet customers’ requirements and performance needs.

Wiper Motor
Wiper Motor

Wiper motors are critical to driver safety, yet their durability can be threatened by anything from extreme weather to owner-applied cleaning agents or high-pressure steam jets. In an increasingly cost-sensitive environment, OEMs require more effective venting to protect and extend the service life of wiper motors, reducing warranty claims. Gore has a portfolio of venting solutions engineered to preserve peak wiper motor performance, more cost-effectively: Our membrane cut-part vents (AVS 25, 26, 28, 29 and 39) and our three-layer cut part vents (AVS 47, 48, 49, 50, 51 and 52).


Electronic Pump Motor
Electronic Pump Motor

Emission and fuel-consumption considerations are driving the transition from belt-driven mechanical pumps to electronic pumps. However, sensitive electronics require more protection from under-hood hazards like extreme temperature differentials and exposure to automotive fluids or high-pressure steam spray. High-airflow vents are engineered to manage rapid temperature and pressure changes while effectively reducing ingress from water, fluids, and other contaminants. With proven performance, our vents protect electronic pump motors more reliably for fewer warranty claims.


Starter Motor
Starter Motor

Starter reliability is always crucial, especially with the introduction of the new "start⁄stop" systems, which cycle much more often than older designs. To perform reliably time after time, these systems require advanced protection - from large temperature differentials as well as from automotive fluids, dirt, and other particulates. Our durable vents provide long-lasting protection for starter motors exposed to harsh under-hood conditions and road-debris hazards.




Recent News

Press Release

Less is More: New GORE® PolyVent Compact Series Delivers Higher Performance in a Smaller-Footprint Snap-Fit Vent

Posted November 25, 2013

With its new GORE® PolyVent Compact Series, W. L. Gore & Associates, Inc. introduces higher-performance venting in a smaller footprint. About 30% smaller than the widely-used PolyVent Snap-Fit product family, the new Compact Series is easier to integrate into even the smallest automotive electronic housings. It provides a higher level of protection for sensitive components like sensors, motors and control units, while providing reliable and rapid pressure equalization.


Less is More: New GORE® PolyVent Compact Series Delivers Higher Performance in a Smaller-Footprint Snap-Fit Vent

Posted November 25, 2013

Approximately 30 percent smaller than other GORE Snap-Fit Vents, the compact series provides a higher level of protection for extremely small electronic components, where space is at a premium.

Press Release

GORE® Automotive Vents Protect Powertrain Components from Harsh Environments

Posted April 22, 2013

W. L. Gore & Associates has expanded its line of GORE® Automotive Vents to include the new Series: AVS 41 (P/N VE2048) venting solution, which is engineered specifically for powertrain components. This new vent improves component reliability by equalizing pressure, preventing contamination from water, dust, dirt, and other automotive fluids and simplifying design challenges, ultimately resulting in lower overall costs.

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Not for use in food, drug, cosmetic or medical device manufacturing, processing, or packaging operations