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3556020 Brake Caliper Pin Dust Boot SN6 SN7 SK7

3556020

Summary

This heavy-duty brake caliper pin dust boot is designed for SN6, SN7, and SK7 series applications. It serves as a critical sealing element to protect caliper slide pins from road salt, mud, and brake dust, ensuring smooth axial movement within the braking system.

Product identifiers
EAN Code8683457019683
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Description

What does a brake caliper pin dust boot do?

This brake caliper pin dust boot acts as a flexible sealing element designed to protect the caliper slide pins from environmental contaminants. In heavy commercial vehicle braking systems, floating calipers must move smoothly along the pins during every brake application. This component bridges the gap between the pin and the bore, effectively keeping grease inside the assembly while preventing water, mud, and road salt from entering the mechanism.

Compatibility and application

This specific part is compatible with SN6, SN7, and SK7 series components. It is a vital wear item for maintaining the integrity of the caliper assembly. Replacing these boots during routine maintenance helps prevent pin seizure and uneven brake pad wear.

Installation and maintenance

For proper installation, technicians should ensure the pin surface is clean and properly lubricated with high-temperature grease before fitting the new boot. Inspecting the boot for cracks or stiffness during every service interval is recommended to prevent premature component failure.

System maintenance

Maintaining clean and lubricated guide pins is essential for optimal braking performance and system longevity.

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FAQ

What is the function of a caliper pin dust boot?
The boot acts as a bellows-shaped seal that protects caliper slide pins from water, mud, and road salt. It keeps essential grease inside the bore while preventing contaminants from causing pin seizure.
When should these boots be replaced?
Since they are wear items subject to environmental stress, they should be inspected regularly and replaced during routine brake service or whenever the caliper pins are being renewed.
How does this part affect braking performance?
By preventing debris from entering the pin bore, the boot ensures that the floating caliper can travel axially without resistance, preventing uneven pad wear and vibration.
Can these boots be installed without grease?
No, it is critical to use high-temperature grease during installation to ensure smooth movement and to prevent the rubber from degrading prematurely.