Sierra 18-3575 Bi-Directional Circulating Water Pump for Mercury, OMC, Volvo Bi-Directional Circulating Water Pump for Mercury, OMC, Volvo Replaces: Mercury 65142A1 and OMC 984360, 3854017, 380640, 986779 and Volvo Penta 3854017 For: GM Inline (4 & 6 Cylinder) Fits: Volvo Penta 3.0L, 4 cyl. Engines All Sierra parts qualify for and are covered under Sierra's Industry Leading Customer Satisfaction Warranty Before Ordering, Please Verify this is the Correct Part for your Application. For Assistance, Please Call Sierra's Tech Support at 1-877-663-8396