Product Description
Engineered for professional brake system tuning, the HBS PB214/APV01 adjustable proportioning valve delivers precise rear-brake bias control for optimal stopping performance. This aluminum-bodied valve features:
1/8″ NPT inlet/outlet ports with 3/8″-24 outlet fitting for secure fluid routing
GM universal fitment (compatible with most GM chassis applications)
Dual 1/4″ mounting holes for stable installation
Linear adjustment mechanism for fine-tuning brake force distribution
Designed for motorsport and performance street applications, this single-function proportioning valve allows mechanics to eliminate rear-wheel lockup while maintaining maximum braking efficiency. The PB214/APV01 brake proportioning valve meets professional workshop demands with its durable construction and consistent pressure modulation.
Installation Note: Requires professional calibration to match specific vehicle weight distribution and tire grip conditions. Install this valve between the distribution block and the rear flex hose in the front-to rear rigid brake line.Always use tube wrenches to tighten fittings properly.
Product Information
Type |
Single-function Valve |
Function |
Adjustable Brake Proportioning Valve |
Reference Number |
PB214 APV01 |
Material |
Aluminum |
Inlet & Outlet Port |
1/8″ NPT |
Outlet Fitting |
3/8″-24 |
Mounting Hole |
2xφ1/4″ |
Fitment |
GM Universal |

About HBS
Hipsen(Quzhou) Brake System Parts Co., Ltd (HBS) is a professional manufacturer of auto brake master cylinders. We produce aftermarket parts and provide custom manufacturing services.
Our products have been exported to North America, Europe…etc since 2015. We have been verified with a quality certificate of ISO9001:2015, and the ISO/TS16949 certificate is coming in 2024.
Both the finished products and the production processes have received recognition from the brands we have collaborated with For example, Cardone, Ford Otosan, Polaris, Electra Meccanica, Wildwood, Hayes, and ZongShen.
Why Choose HBS

Numerous models in stock One-year Warranty Friendly Payment Methods
Complete coverage, check in Brake Proportioning Technicians follow the whole after-sales process; Safe payment methods or percentage for you
Valve Series Provide solutions within three working days can be negotiated
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