Quicksilver 8M0123099 Mercruiser V8 Ignition Module DistributorIgnition Module for 1990-2005 V8 GM & MIE engines.Supersedes 811637001Fits: 3.0L GM 181 I/L4 (1A002000 - 1A020543); 3.0L GM 181 I/L4 (1A020544 & Up); 3.0L TKS Plus (1G404114 & Up); Replaces: Mercruiser 811637T; Sierra 18-5107-1;