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3503001 Brake Caliper Pin Bushing and Boot

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3503001 Brake Caliper Pin Dust Boot, Air Disc Brake Caliper
Product details
Caliper
  • BENDIX ADB22X
  • BENDIX ADB22X-LT
  • KNORR-BREMSE SB5
  • KNORR-BREMSE SB6
  • KNORR-BREMSE SB7
  • KNORR-BREMSE SB7 Radial
  • KNORR-BREMSE SK7
  • KNORR-BREMSE SL7
6 more caliper types
  • KNORR-BREMSE SM7
  • KNORR-BREMSE SN6
  • KNORR-BREMSE SN7
  • KNORR-BREMSE ST6
  • KNORR-BREMSE ST7
  • KNORR-BREMSE SyT7
EAN Code8683457032514
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Summary

This brake caliper pin dust boot is designed for heavy commercial vehicle air disc brake systems. It ensures the protection of caliper pins and bushings against contaminants, maintaining optimal braking performance for fleet vehicles. Engineered with high-strength components to withstand harsh environmental conditions.

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Description

What does a brake caliper pin dust boot do?

This brake caliper pin dust boot plays a critical role in the maintenance of air disc brake caliper mechanisms. By providing a protective seal around the caliper pins, it prevents moisture, dust, and road debris from entering the sliding components, which helps prevent premature wear and seizing.

Compatibility and system application

The component is specifically designed for use in heavy commercial vehicle braking systems. It works in conjunction with caliper pins and bushings to ensure smooth movement of the caliper during braking cycles. This part is essential for maintaining the reliability of the entire braking mechanism under heavy-duty service conditions.

Installation and maintenance guidance

Technicians should inspect these dust boots during every brake system service. Worn or cracked boots can lead to pin seizure or uneven pad wear. Replacing these components during routine maintenance helps prevent more costly repairs to the caliper assembly itself.

Troubleshooting and selection

When selecting replacement parts, ensure compatibility with the specific caliper assembly type used in the vehicle's air disc brake system.

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
AKIA
BPW
FRUEHAUF
ISUZU
IVECO
JOST
KNORR-BREMSE
OTOKAR
RENAULT TRUCKS
SAF
SCANIA
SCHMITZ CARGOBULL
SCHMITZ CARGOBULL
SCHWARZMULLER
VOLVO
ZF

FAQ

What is the purpose of a brake caliper pin dust boot?
The boot acts as a protective seal that prevents dirt, water, and debris from contaminating the caliper pins and bushings, ensuring smooth sliding action.
How can I tell if my brake caliper pin dust boot is faulty?
Signs of failure include visible cracks in the rubber, hardened material, or signs of uneven brake pad wear caused by sticking caliper pins.
Does this part affect braking performance?
Yes. A functioning dust boot ensures the pins move freely; if the boot fails, pins may seize, leading to reduced braking force or overheating.
Should I replace both pins and boots together?
It is often recommended to replace both during a service to ensure a complete seal and optimal lubrication retention within the caliper mechanism.