heavy duty truck business unit
This business unit designs, develops, tests, markets, and manufactures products for the Class 5-8 vehicle groups, tractor trailers, and associated aftermarket channels.

transit business unit
This business unit designs, develops, tests, markets, and manufactures products for the OE Transit & Shuttle Bus, RV, Motor Coach, and specialty vehicle markets along with aftermarket distribution.

Global Headquarters & Truck Unit
2851 Prairie St
Grandville, MI 49418
Ph: 616-530-1717
Fax: 616-530-3283

Transit Unit
2503 Marina Dr
Elkhart, IN 46514
Ph: 574-266-3700

Fax: 574-266-3747

Brand Promise

We deliver to the worldwide commercial and recreational vehicle markets innovative systems and services leading to differentiation and highest value solutions.  We invest in enduring global partnerships.
"We commit to work with spirit, speed, and integrity."

 
 
 

TRANSIT WARRANTY UPDATE- Effective June 1, 2009

Please note that the Transit warranty policy has been modified. 

 
 
 

Listen to the Difference

Listen to the difference between your Hadley Air Horn and the Leading Competitive Brand!

 
 

 Hadley

 

 The Competition

 
 
 
 
 
 
Hadley's Next Generation Height Control Valve. Dump version, neutral position.

OEM replacements:

Hadley Height Control Valves Are Now your Best Choice!

 

Service Centers now have a choice when replacing OEM valves, including Mack and Volvo trucks. Hadley's direct replacement valves offer reliability and improved performance at a lower cost!