Mercruiser and Volvo Penta ignition module.

Fits:
Mercruiser, Volvo Penta, OMC 4-cyl. V6 & V8 engines with Delco breakerless distributors.

Replaces part #'s:
S556096, 811637, 811637T, 811637001, 18-5107-1, 3854003