Our IWE Silicone Vacuum Line Kit replaces the factory rubber vacuum lines used in Ford’s Integrated Wheel End (IWE) hub system. Cracked or leaking vacuum lines are a common cause of grinding noises and intermittent 4WD engagement issues on many Ford trucks and SUVs.

✔ Helps eliminate IWE vacuum leaks that cause front hub grinding
✔ Durable silicone hoses resist heat and cracking better than factory rubber lines
✔ Direct replacement for factory IWE vacuum lines
✔ Compatible with 2010–2014 Ford F-150 and SVT Raptor
✔ Also fits many Ford Expedition and Lincoln Navigator models equipped with IWE hubs

✔ Made in USA
🔧 30–60 minute install
🚚 Ships from Nevada

🔧 Fix Grinding Noise & IWE Vacuum Problems

Many Ford trucks and SUVs use a vacuum-controlled Integrated Wheel End (IWE) hub system to disengage the front hubs during normal 2WD driving.

Over time the factory rubber vacuum lines can crack, leak, or deteriorate from heat and age. When vacuum leaks occur, the IWE hubs may partially engage and produce grinding noises from the front wheels.

This IWE Silicone Vacuum Line Kits replace the factory rubber vacuum lines with durable silicone hoses designed to withstand heat, age, and engine bay conditions.

⚠️ Diagnosing IWE Grinding Noise

A failing IWE vacuum line system is one of the most common causes of front hub grinding noises on Ford trucks and SUVs equipped with vacuum-actuated hubs.

Common symptoms of an IWE vacuum leak

• Grinding noise from the front wheels while driving in 2WD
• Intermittent grinding while accelerating or decelerating
• Grinding noise that disappears when 4WD is engaged
• Front hub noise that comes and goes
• Visible cracks or leaks in factory vacuum hoses

These symptoms often occur when vacuum leaks prevent the IWE hubs from fully disengaging.

Replacing worn factory hoses with silicone vacuum lines can help restore proper vacuum operation and eliminate hub grinding.

✔ Features

• Complete silicone replacement vacuum line kit for the IWE system
• Helps eliminate vacuum leaks that cause grinding hub noises
• Silicone hoses resist heat and cracking better than factory rubber lines
• Pre-cut hose lengths designed for factory routing
• Direct replacement solution for worn vacuum hoses
• Designed and tested on real F-150 and Raptor trucks

📦 What’s Included

• Pre-cut silicone vacuum line assembly
• Correct hose lengths for the IWE system
• Ready for installation

🔧 Installation

Installation typically takes 30–60 minutes.

1️⃣ Locate the factory IWE vacuum lines running to the front hubs
2️⃣ Remove the original rubber vacuum lines
3️⃣ Install the silicone replacement lines following factory routing
4️⃣ Verify proper vacuum operation

🧰 Why Upgrade to Silicone Vacuum Lines?

Factory rubber vacuum lines can become brittle and crack over time due to heat and age.

Silicone hoses offer improved resistance to:

• engine bay heat
• cracking and aging
• vacuum leaks

Upgrading to silicone lines can help improve the long-term reliability of the IWE hub system.

❓ Frequently Asked Questions

What is the IWE system?
The Integrated Wheel End (IWE) system is a vacuum-controlled hub system used on many Ford trucks and SUVs to engage and disengage the front hubs.

Will this fix grinding noises?
Grinding noises are often caused by vacuum leaks in the IWE system. Replacing worn vacuum lines can resolve this issue in many cases.

Do these fit Raptors?
Yes. The kit is compatible with Gen1, Gen2, and Gen3 Ford Raptor models.