Ensure optimal performance of your Porsche 911 or 914’s airbox assembly with the 914Rubber Airbox Motor Seal, compatible with 911 (1965-89) and 914 (1970-76) models. PMB Performance, with 20 years of Porsche restoration expertise, has partnered with 914Rubber for nearly two decades to deliver top-quality parts. As the leading 914Rubber retailer, we stock more SKUs than anyone, providing precision-crafted components like this seal, built to exceed OEM standards.
This seal (Part #911.571.018.00S) replaces the degraded foam seal that secures the blower motor in the airbox housing. Crafted from high-grade silicone, it offers superior durability with a temperature range of -76°F to 392°F and a tensile strength of 8 MPa. Unlike crumbling OEM foam, this silicone seal resists UV, ozone, and moisture, ensuring a tight fit that prevents air leaks and motor vibration. It comes with a lifetime warranty and is essential for airbox rebuilds, maintaining proper airflow to the cabin. One seal is required per car.
Why this seal? A worn airbox motor seal allows hot air to escape, reducing heating and ventilation efficiency by up to 25% and risking motor misalignment. This 914Rubber seal restores factory performance, ensuring consistent cabin climate control. We’ve used it in countless 911 and 914 restorations, from daily drivers to concours cars, and it’s a must for airbox maintenance. A customer noted, “My ’72 914’s heater blows stronger and quieter after installing this seal!” Installation is straightforward: remove the airbox cover (refer to PET diagram 805-10), clean the housing with isopropyl alcohol, and press the new seal into place. Secure the motor with factory clips (torque to 2 Nm). For 914s, pair with 914Rubber’s Air Inlet Box Seal Kit (#914.571.129.10) for a complete refresh
PMB Performance’s deep Porsche knowledge and 914Rubber’s meticulous craftsmanship deliver parts we trust in our own builds. Compatible with Porsche 911 (1965-89) and 914 (1970-76), this seal is ideal for airbox restorations. Need help? Contact us at (855) 786-7101 or Support@pmbperformance.com. Trust PMB Performance and 914Rubber to keep your Porsche’s airbox in top shape.