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PV4 Brake Proportioning Valve Disc/Disc Brake System Combination Valve | Solid Brass, Standard 9/16-18 and 1/2-20 Fittings, 1/2-20 and 7/16-24 Connections from the Master Cylinder
This proportioning valve helps you solve the rear lock up problem, distributing pressure to prevent rear lockup effectively.
PV4 Brake Proportioning Valve Disc/Disc Brake System Combination Valve | Solid Brass, Standard 9/16"-18 and 1/2"-20 Fittings, 1/2"-20 and 7/16"-24 Connections from the Master Cylinder
Item #: 44913962

PV4 Brake Proportioning Valve Disc/Disc Brake System Combination Valve | Solid Brass, Standard 9/16"-18 and 1/2"-20 Fittings, 1/2"-20 and 7/16"-24

Item #: 44913962

NZD 104

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This proportioning valve helps you solve the rear lock up problem, distributing pressure to prevent rear lockup effectively.
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What Stands Out

Enhanced Control
The PV4 Brake Proportioning Valve optimizes brake force distribution, ensuring balanced stopping power for improved vehicle control during sudden braking situations.
Durable Design
Constructed with high-quality materials for longevity, this combination valve resists wear and tear, providing dependable performance for both daily drivers and performance vehicles.
Easy Installation
Engineered for user-friendly installation, the PV4 valve integrates seamlessly into disc/disc brake systems, making it accessible for both professionals and DIY enthusiasts.

Product Details

Shop PV4 Brake Proportioning Valve Disc/Disc Brake System Combination Valve | Solid Brass, Standard 9/16-18 and 1/2-20 Fittings, 1/2-20 and 7/16-24 Connections from the Master Cylinder online at a best price in New Zealand. B096TTYR4N
Brand NamePOWERWORKS
Model Number749346322123
Number of Packs1
Unit Count1 Count
ManufacturerPowerworks
Number of Items1
UPC749346322123
Number of Pieces1
Material TypeBrass
Exterior FinishBrass
Inlet Connection TypeThreaded
Outlet Connection TypeNPT
Number of Ports3
Thread Size9/16 inches (2326.6 cm)
Thread TypeNPT
Connector TypeThreaded
Valve TypeProportional Valve
Inlet Connection Size0.38 inches (1 cm)
Outlet Connection Size0.38 inches (1 cm)
SizePV4
MaterialBrass
BrandPOWERWORKS
Item Weight1.5 lbs (680 grams)

Who Should Buy?

Suitable For
  • Performance Enthusiasts

    Ideal for those seeking enhanced brake responsiveness in high-performance vehicles with disc/disc configurations.

  • Vehicle Modifiers

    Suitable for users who are upgrading or modifying their brake systems for improved balance and safety.

  • Professional Mechanics

    Great for mechanics working on custom builds that require precise brake force adjustments and reliable performance.

Not Suitable For
  • Budget-Conscious Buyers

    Not ideal for those looking for a low-cost solution without high-performance brake requirements.

Product Description

PV4 Brake Proportioning Valve Disc/Disc Brake System Combination Valve | Solid Brass, Standard 9/16"-18 and 1/2"-20 Fittings, 1/2"-20 and 7/16"-24 Connections from the Master Cylinder

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What is a PV4 Brake Proportioning Valve?

    Answer: The PV4 Brake Proportioning Valve is a critical component designed to balance braking pressure between the front and rear disc brake systems in your vehicle. This valve effectively ensures that the rear brakes engage at a suitable pressure relative to the front brakes, enhancing stability during braking. By doing so, it minimizes the chances of skidding and improves overall safety. Scenarios such as heavy braking on slippery surfaces highlight the importance of a proportioning valve, making this component invaluable for optimal brake performance.
  • Question: How does a brake proportioning valve work?

    Answer: A brake proportioning valve works by regulating the hydraulic pressure that is sent to the rear brakes. During braking, as pressure builds in the brake lines, the valve senses the pressure differential and adjusts the flow to the rear brakes accordingly. This mechanism prevents the rear wheels from locking up before the front wheels, which helps maintain traction and control. In practical terms, this is particularly beneficial in high-performance or heavy-load scenarios where braking stability is vital.
  • Question: What are the benefits of using the PV4 Brake Proportioning Valve?

    Answer: Using the PV4 Brake Proportioning Valve enhances vehicle braking efficiency by ensuring a balanced distribution of brake force. This not only improves stopping distances but also boosts safety by reducing the risk of rear wheel lockup. The effective modulation of pressure leads to improved handling, especially in emergency situations. If you often find yourself driving in variable weather conditions or engaging in spirited driving, this valve is a crucial addition to your brake system for better control.
  • Question: Can I install the PV4 Brake Proportioning Valve myself?

    Answer: Yes, the PV4 Brake Proportioning Valve can typically be installed with moderate mechanical skills and basic tools. The installation involves replacing the existing valve, along with making appropriate plumbing adjustments to ensure proper brake line connections. Detailed instructions or service manuals specific to your vehicle model will assist in the process. Individuals who enjoy DIY automotive projects will find this task rewarding, as it directly affects the vehicle's performance and safety.
  • Question: How do I know if my brake proportioning valve is faulty?

    Answer: Signs of a faulty brake proportioning valve include uneven brake wear, pulling to one side during braking, and a spongy brake pedal. If you notice any of these symptoms, it might indicate that the valve is not distributing pressure correctly. In scenarios where you observe inconsistent braking performance, inspection of the proportioning valve should be part of your troubleshooting process. Regular checks can prevent further brake system damage and enhance overall reliability.
  • Question: Is the PV4 Brake Proportioning Valve compatible with all vehicles?

    Answer: The PV4 Brake Proportioning Valve is primarily compatible with vehicles utilizing disc brake systems. However, compatibility can vary based on make and model. It’s essential to consult your vehicle’s specifications or a professional mechanic to ensure proper fitment. This valve is especially beneficial for modified vehicles or those used in motorsport where precise brake balance is crucial for performance and safety.
  • Question: What materials are used in the PV4 Brake Proportioning Valve construction?

    Answer: The PV4 Brake Proportioning Valve is typically constructed from durable materials like brass and high-quality aluminum, which ensure longevity and resistance to corrosion. These materials can withstand the high pressure and temperature variations experienced in brake systems. Using a valve made from these reliable materials ensures consistent performance and minimizes the risk of failure during critical braking situations.
  • Question: Does the PV4 Brake Proportioning Valve require regular maintenance?

    Answer: While the PV4 Brake Proportioning Valve is designed to operate efficiently with minimal maintenance, regular inspections of the brake system can help identify potential issues. Look for leaks or signs of wear around the valve, and ensure that the hydraulic connections are secure. In high-performance applications, taking a closer look at this valve during routine brake inspections can enhance longevity and reliability.
  • Question: Can I use the PV4 Brake Proportioning Valve in a custom brake setup?

    Answer: Yes, the PV4 Brake Proportioning Valve is often used in custom brake setups to achieve optimal balance and performance. Whether you're modifying a classic car or building a race vehicle, integrating a proportioning valve allows for precise control over brake pressure distribution. This customization can significantly enhance driving dynamics, particularly in vehicles designed for racing or spirited driving.
  • Question: Where can I buy PV4 Brake Proportioning Valve in New Zealand?

    Answer: You can purchase the PV4 Brake Proportioning Valve from Ubuy, which provides a wide selection of automotive parts including this crucial component. Ubuy is known for its reliable sourcing and excellent customer service, making it a great choice for acquiring essential vehicle parts in New Zealand. Easy online ordering and a user-friendly interface enhance your shopping experience.

POWERWORKS Proportioning Valves 749346322123 Editorial Review

In the realm of automotive upgrades, particularly for classic vehicles, the proportioning valve has emerged as a pivotal component for ensuring optimal brake performance. Based on customer feedback, this product has garnered a positive reception from users working on various classic Chevrolet models, including the C10 series and a 1964 Chevrolet truck. Many customers reported successful installations and significant improvements in brake performance following the upgrade to this valve. Specifically, users appreciated how effectively it resolved issues such as leaks in existing systems, especially for those with conversions to all-wheel disc brakes. Customers noted that the installation process was straightforward, particularly in frame-up restorations, making it accessible for DIYers and enthusiasts alike. Furthermore, the proportioning valve appears to outperform competing brands, with several users citing it as superior to established names in the market. However, it's worth noting that buyers were advised to purchase an additional bleeder screw, as this is not included with the valve. In summary, this proportioning valve has proven to be a reliable solution for various brake system upgrades in classic vehicles, eliciting favorable reviews for its effectiveness, ease of installation, and overall performance enhancements. **

Customer Reviews & Ratings

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Pros

  • Effective improvement in brake performance
  • Resolves leaks in existing brake systems
  • Easy to install, particularly for frame-up restorations
  • Performs better than competing brands

Cons

  • Additional components, like the bleeder screw, must be purchased separately.

Platform Trust & Buyer Confidence

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“Paint ordered from USA, u buy got the product to me in New Zealand in approx a week”

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“Love what I received and ordered found that usa clothes are more better quality and look better than the same clothes in my country but are harder to find here recommend ubuy 100%”

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Dneah
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“Product came earlier than expected (shipped from US to NZ), in about 3 weeks. No damages and product was exactly as advertised!”

15-Jul-26 · via Trustpilot
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Tania
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“Easy to order, easy to track and the product is great to use. Also, the person-to-person (not automated) phone call I got to confirm that I'd received the item was wonderful ??”

11-Jul-26 · via Trustpilot
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