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MCP Brake Caliper Bleeder Screw
13821 MCP Caliper Bleeder Screw
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MCP Brake Caliper Bleeder Screw

Part Number: 13821
Online Price: $1.99
13821 MCP Brake Caliper Bleeder Screw for Go-Kart & Small Engine Brake Systems
Availability: In Stock.

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Description

13821 MCP Brake Caliper Bleeder Screw


The 13821 MCP Bleeder Screw is a replacement inner bleeder screw designed for use with MCP (Martin Custom Products) brake calipers. This precision-machined component is essential for bleeding trapped air from hydraulic brake systems—restoring firm, responsive braking performance.


Perfect for racing go-karts, mini bikes, and other small vehicle applications that utilize MCP calipers, this screw allows controlled release of air and brake fluid during the bleeding process. It's compatible with most MCP caliper bleeder assemblies and is adjusted using a standard 1/4" wrench.


Key Features:

  • Direct Replacement for MCP brake caliper bleeder assemblies
  • Removes Air Pockets from brake lines during bleeding
  • Precision Fit to ensure leak-free operation
  • Compatible with MCP hydraulic calipers used in racing karts, mowers, etc.
  • Adjusts Easily using a 1/4" wrench


Usage Tip:

To bleed your brakes, open the bleeder screw slightly while pressing the brake pedal. Once air bubbles stop flowing through the line, tighten the screw and check pedal firmness. Always use appropriate brake fluid (DOT 5 for most MCP setups).

FAQ

Q1: What does the 13821 MCP Bleeder Screw do?

A: This inner screw allows you to bleed trapped air out of your MCP hydraulic brake system, restoring firm pedal feel and consistent brake performance.


Q2: What tools do I need to adjust or remove the screw?

A: You only need a 1/4" wrench to open or tighten the bleeder screw during the brake bleeding process.


Q3: What type of brake fluid should I use?

A: Most MCP brake systems require DOT 5 brake fluid. Always confirm the correct fluid type before filling or bleeding.


Q4: How often should I bleed my MCP brakes?

A: You should bleed your brakes:

  • Anytime the system is opened (e.g., pad changes or line removal)
  • If your brake pedal feels soft or spongy
  • After 2–3 race events as routine maintenance


Q5: Is this screw compatible with all MCP calipers?

A: This screw fits most standard MCP calipers, including those used in go-karts, mini-bikes, racing mowers, and similar applications. If you're unsure about fitment, please contact us before ordering.

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