Sierra 18-79994N NEW Carburetor for Mercury/Mercruiser 3310-866142A04 NEW Carburetor for Mercury/Mercruiser Replaces: Mercury/Mercruiser-3310-866142A04 Sierra Part Number 18-79994N Fits: TKS-5.0L 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