Page Views: 53 Date Added: 05/08/2008 Last Updated: 05/08/2008 Description: For Sale - Mercruiser HP500 Ignition Modules 848821-2 ICM CAL. 500 C.Mercury Part# 840130A05. Price includes shipping if you buy both. Ran one season on my boat. Swapped out with new MSD system. Have two for sale. In Perfect Condition. Ad Number: 23191 Price: 125.00 ea First Name: Jim Last Name: Pratt Company Name: Company Website: http:// Phone: (309) 825-5702 Phone 2: City: Bloomington State: IL Make: Mercury Model: 848821-2 Condition: Used Type of Part: E-mail: Reply to Listing Additional photos