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1/8NPT Straight Brass Brake/Throttle Linkage Fitting
68A-3A Brake Fitting Straight Brass Flare 1/8NPT
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1/8NPT Straight Brass Brake/Throttle Linkage Fitting

Part Number: 68A-3A
Online Price: $1.95
68A-3A 1/8NPT Straight Brass Brake/Throttle Line Fitting for MCP Systems
Availability: In Stock.

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Description

68A-3A 1/8NPT Straight Brass Brake/Throttle Linkage Fitting


The 68A-3A Straight Brass Fitting is a precision-machined compression coupler designed for secure, leak-free connections in brake and throttle systems on performance vehicles. Commonly used in Martin Custom Products (MCP)brake systems, this fitting is a direct replacement for master cylinders, calipers, and other control components on racing go-karts, lawnmowers, mini bikes, and custom builds.


Built from durable brass, the 68A-3A fitting works with 3/16" nylon tubing and uses a compression-style ferrule to create a sealed connection—perfect for high-vibration, high-performance environments.


Specifications:

  • Thread Type: 1/8" MNPT (Male Pipe Thread)
  • Inlet Size: 3/8"
  • Tubing Compatibility: 3/16" nylon brake or throttle line
  • Material: Solid brass
  • Configuration: Straight compression fitting


Features & Benefits:

  • Compatible with MCP Brake Systems – Ideal replacement for MCP master cylinders and calipers
  • Universal Racing Use – Works with throttle cable housings and brake lines in karts, mowers, and mini bikes
  • Secure Compression Fit – Requires brass ferrule (sold separately) to properly seal the 3/16" line
  • Corrosion-Resistant Brass – Built to endure heat, fluid exposure, and vibration
  • Easy to Install – 1/8" NPT threads fit most brake and throttle ports with standard tools


Common Applications:

  • MCP brake systems
  • Racing go-kart throttle and brake assemblies
  • Performance lawnmowers
  • Jr. dragsters and mini bikes
  • Custom chassis with 3/16" brake line routing

FAQ

Q: What size tubing does this 68A-3A fitting work with?

A: This brass fitting is designed for 3/16" nylon tubing, commonly used in brake lines and throttle cable housings for small engine and karting applications.


Q: Do I need to use a ferrule with this fitting?

A: Yes, a brass compression ferrule (sold separately) is required to properly seal and secure the tubing to the fitting.


Q: What thread size is this fitting?

A: It has a 1/8" MNPT (Male National Pipe Thread), suitable for most MCP master cylinders and calipers.


Q: Is this compatible with both brake and throttle systems?

A: Absolutely. This fitting is versatile and can be used in both hydraulic brake line setups and throttle cable housings.


Q: Can I use this with other brands besides MCP?

A: Yes, as long as the component accepts 1/8" NPT threads and you're using 3/16" line, this fitting can be used universally across various racing platforms.

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