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F224720 | RG-2 RELAY VALVE | Replace KN28500 | LRV-3637

F224720 | RG-2 RELAY VALVE | Replace KN28500 | LRV-3637

SKU: SKU:F224720

Inventory: 34 in stock

Shipping: Calculated at Checkout

Regular price $ 32.71 USD
Regular price Sale price $ 32.71 USD
Sale Sold out
Shipping calculated at checkout.

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 meet the conditions established in our Terms & Conditions.

To start a return, use our Contact Form

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Product Data Sheet


Check Specification & Cross-references


  • Part OEM: Haldex KN28510
  • Part: RG-2 Type Relay Valve
  • Supply Ports: (2) 3/8” P.T.
  • Delivery Ports: (2) 3/8” P.T.
  • Control Port: (1) 1/4” P.T.
  • Opening Pressure: 6 PSI
  • Mounting Hole Diameter: 2 @ 5/16"" on 1 1/2"" Centers
  • Notes: Includes Universal Mounting Bracket
  • Application Info: Recommended use on Tractors and Trailers


  • Automann: 170.KN28500
  • Bendix: KN28500X
  • Bepco Inc: KN28500
  • Euclid: EMDKN28500N
  • Haldex: KN28500, KN28500N
  • International-Navistar: 459790C91, ZZKN28500X
  • Mack: 5396-KN28500
  • Meritor: R955KN28500N
  • PAI: LRV3637
  • Wabco: S9732880040


Dimension Not Available.