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Fortpro

Fortpro PR-4 Type Pressure Protection Valve Replacement for Haldex KN31001, Mack 20QE2128 | F224671

Fortpro PR-4 Type Pressure Protection Valve Replacement for Haldex KN31001, Mack 20QE2128 | F224671

SKU: F224671

Availability: 30 in stock

$16.96 USD
$19.85 USD $16.96 USD
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Compatibility & Purchase Guidelines

  • Verify OEM Compatibility: Always match your OEM part number with our cross-reference list before purchasing to ensure proper fitment.
  • Avoid Returns: Do not rely solely on visual similarity. Parts may look identical but differ in specifications. Confirm compatibility using part numbers.
  • Truck Brand Reference Disclaimer: Mentioned truck brands are provided for general reference only and do not guarantee universal compatibility across all models.

Shipping Policy

In order to send your purchase, our company may use different freight companies like USPS, UPS and some 3erd Carrier Services for Oversize orders, this will not affect the final price of your order. We will send you all the information in due time. 

For Free Shipping and Freight/Oversize Shipments they are some special term you may check at our Terms & Conditions page.

 

Return Policy

If for any reason you need to return a purchased item, we have a 30-day return policy, which means you have 30 days after receiving your item to request a return.

To be eligible for a return, your item must met the conditions stablished in our Terms & Conditions.

To start a return, you can contact us at admin@maxitrucks.com. 

Key Features & Benefits

  • Very Important: Please Verify this product Description and Compatibility before Buying
  • Built and Tested According to International Quality and Safety Standards
  • Built on Die-cast Zinc to ensure Precision, Strength and Reliability
  • Supply Port: (1) 1/4” P.T. Delivery Port: (1) 1/4” P.T. Open: 65 PSI. Closed: 45 PSI
  • Replacement for Haldex KN31001 PR-4 Type Pressure Protection Valve
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Check Specification & Cross-references

Fortpro Logo

Fortpro is a trusted leader in the development and manufacturing of premium-quality truck parts designed to meet the demands of semi-trucks and heavy-duty trucks. Renowned for innovation, durability, and reliability, Fortpro products are engineered to enhance performance, safety, and efficiency across a wide range of trucking applications.

Whether you're seeking OEM replacement parts or upgrades, Fortpro provides a diverse selection of components backed by a global reputation for quality and innovation. Trust Fortpro for the parts you need to keep your vehicles on the road longer and stronger.

Basic Part Information5 attributes
Basic Part Information
Product LineBrakes
Category NameAir Brake Valves
Part TypePressure Protection Valve
ModelPR-4
OEM Part NumberKN31001
Application/Fitment Attributes4 attributes
Application/Fitment Attributes
Application TypeHeavy Duty Trucks, Semi-Trucks
Delivery Port Qty1
Delivery Port Size1/4-18 NPT
Supply Port Size1/4 -18 NPT
Dimensional/Physical Attributes1 attribute
Dimensional/Physical Attributes
MaterialDie-cast Zinc
Technical/Performance Attributes4 attributes
Technical/Performance Attributes
Closing Pressure45 psi
Crack Pressure65 psi
Maximum Operating Temperature200 deg. F (93 deg. C)
Minimum Operating Temperature-40 deg. F (-40 deg. C)
Packaging / Logistics Attributes:1 attribute
Packaging / Logistics Attributes:
Net Weight0.64 lb.
Intended Application
Intended Application
  • Air brake systems on heavy and commercial trucks.
  • Protection of secondary pneumatic circuits, such as air suspension, pneumatic clutch systems or auxiliary accessories.
  • Prevents total loss of pressure in the event of a leak in a secondary circuit.
  • Automann: 170.KN31000
  • Bendix: 277146
  • Haldex: KN31001
  • International-Navistar: 356596C91
  • Mack: 20QE2128
  • Meritor: R90555396
  • PAI: EM36850
Dimensions Not Available.