Appendix A Replacement Parts Ordering
A.1 Basic Ordering Information
When ordering replacement parts or equipment information, the complete identification number 
should be included. This applies to all components, kits, and chassis. If the component part number 
is not known, the order should include the number of the chassis or kit of which it is a part, and 
sufficient description of the desired component to identify it.
Crystal orders should specify the crystal type number, crystal and carrier frequency, and the model 
number in which the part is used.
The XPR 4300/4350/4500/4550 Digital Mobile Radio Basic Service Manual (Motorola publication 
part number 6816816H01) includes complete parts lists and parts numbers.
A.2 Motorola Online
Motorola Online users can access our online catalog at
https://www.motorola.com/businessonline
To register for online access:
• Domestic customers: please call 800-814-0601 (U.S. and Canada).
• International customers: please go to h
ttps://www.motorola.com/businessonline and click on 
“Sign Up Now.”
A.3 Mail Orders
Send written orders to the following addresses:
Replacement Parts/ 
Test Equipment/Manuals/ 
Crystal Service Items:
Motorola Inc.
Radio Products and Services 
   Division*
Attention: Order Processing
2200 Galvin Drive
Elgin, IL 60123
U.S.A.
Federal Government Orders:
Motorola Inc.
U.S. Federal Government 
Markets Division
Attention: Order Processing
7230 Parkway Drive
Landover, MD 21076
U.S.A.
International Orders:
Motorola Inc.
Radio Products and Services 
   Division*
Attention: Order Processing
2200 Galvin Drive
Elgin, IL 60123
U.S.A.