Amazon Secure Payment System Continue shopping “Idle Adjustment Knob & Retaining Ring – 9.9 & 15 hp – 1974 to 1985 – Johnson Evinrude – OMC 387272” has been added to your cart. Product Price Quantity Subtotal × Impeller 47-59362Q01 47-59362 T1 47-59362 A1 47-59362 1 18-3087 for Mercury Mercruiser 4.3L 5.0L 5.7L 7.4L V8 Sterndrive Outboard motor $17.99 Impeller 47-59362Q01 47-59362 T1 47-59362 A1 47-59362 1 18-3087 for Mercury Mercruiser 4.3L 5.0L 5.7L 7.4L V8 Sterndrive Outboard motor quantity $17.99 × Idle Adjustment Knob & Retaining Ring - 9.9 & 15 hp - 1974 to 1985 - Johnson Evinrude - OMC 387272 $25.82 Idle Adjustment Knob & Retaining Ring - 9.9 & 15 hp - 1974 to 1985 - Johnson Evinrude - OMC 387272 quantity $25.82 Coupon: Apply coupon Update cart Cart totals Subtotal $43.81 Total $43.81 Proceed to checkout