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




 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.

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.

KENWORTH     
MEDIUM DUTY

YEAR 

FRONT - REGULAR 

FRONT - HEAVY DUTY 

REAR - REGULAR 

REAR - HEAVY DUTY 

 T300

 KWFT300 

 -

 PR200 

 -

 T400, T450

 MSR001 (d)

 -

 RES0S1 (d)

 -

 K130, K220

1988-92

 PF227

 -

 PR227

 -

 K300

1993-99

 PF200

 -

 PR200

 -


HEAVY DUTY - Conventional 

FRONT - REGULAR 

FRONT - HEAVY DUTY 

REAR - REGULAR 

REAR - HEAVY DUTY 

 T600, T800, T900...all except mixer chassis

KWF001 

- 

- 

- 

 W900S...mixer chassis

KWF002 

- 

- 

- 

 All Models with AG100 AIRGLIDE suspension (8 bag)

- 

- 

- 

KWRAG100 

 All Models with AG200 & AG400 AIRGLIDE suspension (8 bag)

- 

- 

- 

KWRAG460 


(d) drilling required  -  (p) professional installation required  -  (w)  welding required  - (wd)  welding & drilling required