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Ensuring your vehicle's braking system is in optimal condition is paramount for safety. A properly functioning brake proportioning valve is crucial for distributing brake force effectively between the front and rear wheels, preventing premature lock-up and maintaining control. Selecting the correct replacement valve can significantly impact your vehicle's handling and stopping performance.
This PV-4 proportioning valve works on almost any classic truck, or muscle car, and nearly all vehicles that have disc brakes in the front and disc brakes in the rear
This proportional valve help you solve the rear lock up problem. This proportional valve / combination valve helps to distribute the pressure sent to the front and rear brakes proportionally, effectively preventing rear lockup
Has standard 9/16"-18 and 1/2"-20 fittings
The connections from the Master Cylinder are 1/2"-20 and 7/16"-24. This proportioning valve made of high-quality brass to ensure the durability, corrosion resistance and high-quality thermal conductivity of the product
✦ 【Specification 】Replace Manufacturer Part Number: 172-1353 25509419 This Powerworks proportioning valve PV2 base on 172-1353(disc-drum) and 172-1361(disc-disc) valves. Proportioning-combination valve in brass(Exact Copy of Original AC DELCO...
✦ 【Compatibility For 】: This is a UNIVERSAL Combination Valve, Disc / Drum Brake Brass Proportioning Valve.Replacement For most dual-reservoir type master cylinders.Will work on almost any GM Chevy Chevrolet Ford Classic Car & Truck .
✦ 【Application】PV2 Front Disc Rear Drum Combination-Proportioning Valve is a Universal PV2 Combination-Proportioning Valve, Disc/Drum brakes, fits most OEM dual-reservoir type master cylinders, Brake line ports are 1/2'' and 7/16''.
✦ 【 Material】This Proportioning Valve disc/drum Brake valve is made in solid brass for heavy duty feature and made to last long. This combination/proportioning valve regulates the flow of fluid from rear to front, helping to keep your brakes from...
✦ 【Performance】When upgrading your vehicle from drum to disc, these PV2 combination-proportioning valve are a must. These components ensure proper fluid transfer and contain a residual pressure valve for proper braking feel.
✦ 【High Quality】Our products use high-quality raw materials and undergo rigorous testing. This product is designed to OEM specifications, it can works perfectly with the original model
All LDMINDA Parts comes complete with one year service. If you have any questions please contact us. We will guarantee that you will get the best solutions and services.
Direct replacement - this brake proportioning valve is designed to match the fit and function of the original valve on specified vehicles
Restores functionality - this valve is made to fit and fully restore part functionality after the original valve fails
Durable construction - this part is made from quality materials to ensure reliable performance and long service life
Trustworthy quality - backed by team of product experts in the United States and more than a century of automotive experience
Ensure fit - Input your vehicle into the garage tool and check Confirmed Fit bar at the top of the page. If there is an “i” in a blue circle, additional verification is needed. Please hover over the "i" to verify fitment notes match your vehicle.
All LDMINDA Parts comes complete with one year warranty. If you have any questions please contact us. We will guarantee that you will get the best solutions and services.
Note Size: It includes one proportioning valve and two connectors. The connector size is 1/8NPT. Please confirm if the size matches before purchasing.
Aluminum Alloy Material: Made of high-quality aluminum alloy, it is sturdy and durable with good conductivity and thermal conductivity. It has a stable structure and performance, making it a professional accessory for racing cars. Its function is to...
Adjustable Proportioning Valve: The adjustable proportioning valve is designed to be installed in the brake line to regulate the pressure in the braking system, preventing brake lock-up or premature engagement.
Enhanced Brake Control: Enhanced brake control greatly assists in turning and is an essential tool for all racing cars. It is suitable for most cars and professional racing sports.
Large Knurled Knob: The large knurled knob can be adjusted according to your specifications, with a pressure range of 150PSI-1200PSI suitable for racing sports.
Last update on 2026-09-01 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Automotive Replacement Brake Proportioning Valves
Types of Valves
Brake proportioning valves can be categorized into two main types: factory-style, which are direct replacements designed to match original equipment specifications, and adjustable valves. Adjustable valves offer greater flexibility, allowing drivers to modify brake bias for performance tuning. For most everyday vehicles, a factory-style replacement will suffice. However, for enthusiasts seeking to optimize their vehicle's braking dynamics, an adjustable unit might be a beneficial upgrade.
Frequently Asked Questions
What does a brake proportioning valve do?
A brake proportioning valve controls the amount of brake pressure sent to the rear wheels. This prevents them from locking up before the front wheels during braking, ensuring better vehicle stability and control.
How do I know if my proportioning valve needs replacing?
Symptoms of a failing valve include uneven braking, the rear wheels locking up easily, a spongy brake pedal, or a significant difference in stopping power between the front and rear. Any unusual braking behavior warrants inspection.
Can I use an adjustable proportioning valve on any car?
While adjustable valves offer more control, they are best suited for vehicles where brake bias adjustment is desired for performance tuning. For standard road use, a direct-fit replacement is often the most straightforward option.
Is replacing a brake proportioning valve a difficult job?
Replacing this component requires mechanical knowledge and careful attention to brake system safety. It involves working with brake lines and fluid, so professional installation is recommended if you're not experienced.
Will a new proportioning valve improve my car's braking?
Yes, a correctly functioning and properly installed proportioning valve is essential for safe and effective braking. Replacing a faulty one will restore proper brake balance and improve your car's stopping performance.
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