For GM 2.5L 153 CID and 3.0L 181 CID 4 cylinder marine engines
Replaces Mercruiser 27-52145, 27-806452, and 27-34041
Replaces Marine Power 0025-101
Replaces OMC 3852693, 912981, and 913277
Replaces Volvo Penta 3852693