Donovan Spring Co., Inc.
"Your One-Stop Spring & Suspension Specialists" 

Phone: 603-627-9800
Toll Free: 1-800-458-3867
Fax: (603) 668-7135
E-Mail: spring@donovancompany.com



Find the correct Timbren SES kit for your vehicle and click on the part # to be directed to our secure online shopping cart. 
Have questions? Not sure what you need?  We are here to help.  Call us during regular business hours or fill out our contact form and a parts associate will get back to you as soon as possible.

 We send daily shipments Monday-Friday to the 48 contiguous United States.  Free UPS Ground shipping is offered in the contiguous US only.  Contact us for shipping quotes on special orders or for orders being shipped to Alaska or Canada.

WESTERN STAR 
HEAVY DUTY
CONVENTIONAL 

YEAR 

FRONT - REGULAR 

FRONT - HEAVY DUTY 

REAR - REGULAR 

REAR - HEAVY DUTY 

 4900 FA, SA...including Twin-Steer, leaf spring  

2008-11

HST001 

 -

 FRM2L 

 -

 4900 FA, SA...including Twin-Steer, air spring

2008-11

 HST001 

 -

 FRM2A 

- 

 4900 FA, SA...including Twin-Steer, leaf spring

2000-07

WSF4900 

 -

FRM2L 

 -

 4900 FA, SA...including Twin-Steer, air spring

2000-07 

WSF4900 

 -

FRM2A 

 -