PQY Front Brake Line Lock Kit — Black Heavy-Duty Roll Control & Hill Holder, Rebuildable Valve

PQY Front Brake Line Lock Kit is a heavy-duty solenoid system that holds front brake pressure for drag starts and hill holds, compatible with 12–24V electrical systems and built to withstand pressure spikes up to 1000 psi.

This PQY Roll Control Hill Holder Kit provides a reliable way to lock front brakes independently of the rear, simplifying burnouts, staging at the line, and preventing rollback on inclines. The kit is designed for motorsport and performance street use: it includes a rebuildable line-lock valve, push-button switch, mounting bracket, coiled wiring, fuse holder, and indicator light so you can install and operate the system without sourcing extra components.

How does the PQY line lock help when staging for a drag race?

When you need to hold the vehicle in place while keeping the rear brakes free to spin the tires, the PQY line lock lets you apply and maintain front brake pressure electrically. That controlled front-hold gives you consistent launches and easier burnouts without riding the hydraulic pedal.

• Locks front brake hydraulics independently of pedal
• Maintains pressure automatically after you release the pedal
• Rebuildable valve for long-term serviceability
• Works with standard 12–24V vehicle electrical systems

Can this unit prevent rollback on hills and how is it operated?

The PQY hill holder function holds brake pressure so the car won’t roll backward on an incline while you transition from brake to throttle. Operation is simple: a heavy-duty push-button switch engages the solenoid valve and an indicator light confirms active hold.

• Push-button switch for fast engagement
• Indicator light shows line-lock status
• Coiled wire and bracket included for tidy installation
• Easy wiring with supplied fuse holder for protection

Is installation compatible with my car and how durable is the kit?

The kit fits most vehicles with 12–24V electrical systems and is designed as a direct replacement for existing line-locks or as a first-time installation. Built to handle pressure spikes up to 1000 psi and with a rebuildable valve, the assembly is robust for high-stress applications like drag racing or repeated burnout practice.

• Direct-replacement form factor for common brake lines
• Handles pressure spikes up to 1000 psi for safety under load
• High-quality solenoid and hardware for longevity
• Rebuildable valve reduces long-term replacement cost

What exactly is included in the PQY line lock package?

The kit ships with everything needed to mount and wire the system so you won’t need multiple trips to the parts store. Components are selected to make installation straightforward and operation intuitive for both performance shops and skilled DIYers.

• Rebuildable line-lock valve (heavy-duty solenoid)
• Push-button switch and mounting bracket
• Coiled wiring harness and fuse holder
• Indicator light for system status feedback

Who is this for? The PQY Front Brake Line Lock Kit is aimed at racers, performance enthusiasts, and anyone who wants a reliable hill-hold and burnout-capable brake control without complex modifications. It is practical for drag racers staging at the line, drivers who need a hill-hold solution, and technicians wanting a rebuildable, serviceable valve built to handle high-pressure situations.