JINGKE Brake Master Cylinder for HammerHead 80T & TrailMaster MID — Single-Port Rear Replacement

An aftermarket JINGKE brake master cylinder engineered to replace the original unit on HammerHead 80T, TrailMaster MID 6.000.305 XRS/XRX and compatible mid-size American Sportworks go-karts.

This JINGKE brake master cylinder is a direct-replacement hydraulic component designed to restore rear-brake actuation on select mid-size off-road go-karts. Built with a single-port layout and precision mounting dimensions, it targets owners who need a reliable, bolt-in replacement that mirrors the original equipment’s fit and function. Because it is an aftermarket part, verifying visual fitment against your kart before ordering is recommended.

Will this master cylinder fit my HammerHead 80T or TrailMaster MID kart?

Yes, this unit is made to match the mounting and port style used by HammerHead 80T and TrailMaster MID 6.000.305 XRS/XRX models as well as many comparable mid-size American Sportworks karts. However, variations can occur between model years and trim levels, so compare the product images and mounting points carefully.

• Compatibility: HammerHead 80T, TrailMaster MID 6.000.305 XRS/XRX, selected American Sportworks mid-size karts.
• Design: single-port rear brake connection for direct replacement.
• Tip: match mounting bolt pattern and port orientation with your existing unit before purchase.

How straightforward is installation for a DIY mechanic?

Installation is intended to be straightforward for anyone familiar with basic go-kart brake work: remove the old cylinder, transfer or replace brake line and reservoir fittings, mount the new unit, then bleed the system. No specialized tools are required beyond standard hand tools and a brake-bleeding setup.

• Preparation: verify part orientation and clean mating surfaces before fitting.
• Tools: common sockets, wrenches, hose clamps and a brake-bleeding kit.
• Procedure: swap lines, tighten fittings, then fully bleed air from the rear-brake circuit.

What does the single-port design mean for performance and maintenance?

The single-port configuration routes hydraulic fluid to the rear brake caliper only, matching the original layout on the specified karts. This simplifies plumbing and reduces potential leak points, but it also means this master cylinder is not intended for dual-circuit conversions without additional plumbing and components.

• Function: dedicated rear brake feed for consistent actuation.
• Maintenance: fewer fittings to inspect reduces service complexity.
• Limitation: not a multi-port unit—unsuitable for direct front-and-rear split without modification.

Who is this for: This replacement JINGKE master cylinder is for go-kart owners, small-fleet operators, and DIY mechanics who need an accurate-fit aftermarket brake unit for HammerHead 80T, TrailMaster MID 6.000.305 XRS/XRX, or compatible American Sportworks mid-size karts. Choose this part if you want a straightforward swap that restores rear-brake hydraulic function; if you are unsure about compatibility, use the product photos and mounting details to confirm fit or contact the seller with your vehicle year and model for help.