HADLEY part description

VALVE
W/DUMP
DUAL PORTS

Hadley Height Control Valve

The Hadley height control valve is a universal-fit replacement for dump and non-dump valves for tractor and trailers as well as selected Class A RVs. It comes with two lever arms and two mounting brackets.

Features & Benefits

  • One of Hadley’s most popular valves for over 20 years
  • High flow rate provides a perfect balance of reliability and repeatability
  • Significantly improves fuel economy compared to conventional mechanical valves
  • Part is covered by a 1-year or 100,000-mile manufacturer warranty

Headquartered in Grandville, MI, Hadley® designs and manufactures valves, air horns, mirrors, and height control systems for heavy duty, commercial, and recreational vehicles. Hadley air horns are a particular favorite amongst truckers due to their signature low, throaty sound that's discernible even at long distances. The company also manufactures the SmartValve line of electronic height control system components, whose simplified and compact design helps reduce injuries and downtime during maintenance and improve fuel economy. All Hadley products are built and assembled in state-of-the-art facilities with four ISO certifications via ANAF to ensure compliance with international environmental, safety, and quality standards.

CUSTOMER REVIEWS

Review by Ruben C on 03/14/2020

right part, perfect, happy happy

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