KYB Front Strut Boot, Jounce Bumper, and Bellows

2007–2014 Ford Expedition / 2009–2014 Ford F-150 (excluding Raptor) 3.5L, 4.6L, 5.4L

Part #: SB139

Overview

The KYB Front Strut Boot, Jounce Bumper, and Bellows are essential components designed to protect your vehicle's suspension system. Specifically engineered for Ford Expedition models from 2007 to 2014 and F-150 trucks (excluding the Raptor) from 2009 to 2014, these parts help maintain optimal suspension performance and ride quality. If your vehicle's original boots or bumpstops are missing, cracked, or worn out, replacing them with genuine KYB parts ensures your suspension remains protected from dirt, debris, and harsh elements.

These components are ideal for DIY enthusiasts and professional mechanics alike who want to preserve the integrity of their suspension system during repairs or maintenance. Properly functioning boots and bumpers prevent dirt ingress and reduce wear on shock absorbers, ultimately supporting a smoother ride and prolonging the lifespan of your suspension components.

Key Features

KYB's Front Strut Boot, Jounce Bumper, and Bellows are crafted with durability and precision in mind. They are made from high-quality rubber and synthetic materials that resist cracking, tearing, and deterioration over time. The boots feature a flexible design that accommodates suspension movement while providing a tight seal against contaminants. The bumpers are engineered to absorb impact and reduce noise, ensuring a comfortable driving experience.

• OEM-style fitment designed specifically for Ford Expedition (07-14) and F-150 (09-14) models (excluding Raptor)
• High-quality rubber and synthetic materials for long-lasting performance
• Protects suspension components from dirt, water, and debris
• Reduces noise and vibration caused by worn bumpstops
• Easy to install with a direct replacement for worn or missing parts
• Prevents premature wear of shock absorbers and suspension parts
• Designed to withstand harsh driving conditions and temperature fluctuations

Construction & Design

These KYB suspension parts are constructed with precision to match the original equipment specifications. The boots are made from durable, flexible rubber that maintains its shape and elasticity over time, even under extreme temperature conditions. The bumpers are engineered with impact-absorbing materials that help cushion suspension movement and protect vital components. The design ensures a snug fit around the strut assembly, preventing dirt and moisture from infiltrating the shock absorber area, which can lead to corrosion and failure.

Performance & Sound

While these parts do not directly increase horsepower or handling, they play a crucial role in maintaining your vehicle's suspension performance. By protecting the shock absorbers and suspension components, they help ensure consistent ride quality and handling characteristics. Properly maintained suspension components contribute to a quieter, smoother ride, free from rattles and clunks caused by worn bumpstops or damaged boots.

Installation & Fitment

Installing the KYB Front Strut Boot, Jounce Bumper, and Bellows is straightforward for those familiar with suspension work. These parts are designed as direct replacements, fitting seamlessly onto your existing strut assemblies without the need for modifications. Typically, the process involves removing the wheel, strut assembly, and old boots or bumpstops, then slipping the new parts into place. No cutting, drilling, or special tools are required. Proper installation helps restore your suspension's protective features and prolongs the life of your shock absorbers.

• Direct bolt-on replacement for worn or missing boots and bumpstops
• No special tools or modifications needed
• Reinstallation is quick and straightforward with basic hand tools

What's Included

• Front strut boot
• Jounce bumper
• Bellows
• Hardware and instructions (if applicable)

Ideal For

• Owners of Ford Expedition (07-14) and F-150 (09-14) models needing replacement parts
• DIY enthusiasts performing suspension maintenance
• Professional mechanics seeking OEM-quality replacement components
• Anyone looking to restore suspension protection and ride quality

Emissions Note

This product is a suspension component and does not impact emissions or require any legal compliance documentation. It is intended for off-road or replacement use only and is not a legal modification for street use in all jurisdictions.