Genuine 47491-22020 Parking Brake Shoe Adjuster Inspection Plug OEM

The Genuine 47491-22020 is an OEM parking brake shoe adjuster inspection plug designed to fit the brake backing plate on select Toyota and Lexus vehicles. This small but essential component seals the access hole in the drum brake backing plate, protecting internal brake components from dirt, moisture, and road debris.

When adjustment or inspection of the parking brake shoes is required, the plug is removed to provide direct access to the star wheel adjuster — eliminating the need to fully disassemble the brake drum assembly. Using a genuine OEM replacement ensures a precise fit and proper seal, maintaining the integrity of the brake system.

Key Features:

• OEM genuine factory replacement part
• Seals the adjuster access hole in the drum brake backing plate
• Allows quick access to parking brake shoe star wheel adjuster without drum removal
• Protects internal brake components from contamination
• Exact fit replacement — no modification required
• Manufactured to original Toyota/Lexus specifications

This inspection plug is a common wear or loss item during brake service. Replacing a missing or damaged plug helps prevent premature brake wear and corrosion caused by moisture and debris intrusion into the backing plate cavity.