Amazon Secure Payment System Continue shopping “Sierra International 18-8811-1 Premium MagForce Marine Stern Drive Spark Plug Wire Set for Mercury Marine and OMC Engines” has been added to your cart. Product Price Quantity Subtotal × Seachoice 05981 Round Masthead Light [Misc.] by SEACHOICE $12.99 Seachoice 05981 Round Masthead Light [Misc.] by SEACHOICE quantity $12.99 × Sierra International 18-8811-1 Premium MagForce Marine Stern Drive Spark Plug Wire Set for Mercury Marine and OMC Engines $45.56 Sierra International 18-8811-1 Premium MagForce Marine Stern Drive Spark Plug Wire Set for Mercury Marine and OMC Engines quantity $45.56 Coupon: Apply coupon Update cart Cart totals Subtotal $58.55 Total $58.55 Proceed to checkout