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 × Shoreline Marine Electronics Caddy $4.92 Shoreline Marine Electronics Caddy quantity $4.92 × 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 $50.48 Total $50.48 Proceed to checkout