Home | About | Contact | Policies | Affiliate | Privacy | Shipping | View Cart Hunting Supplies Fishing Supplies Marine Supplies Anchors & Winches Boat Accessories Boat Cleaning & Maintenance Boat Controls & Steering Boat Covers & Accessories Boat Horns Boat Paddles & Hooks Boat Lights Boat Seats Boat Trailor Accessories Fishing Accessories Floatation Devices Fuel Tanks Guages & Instruments Life Vests Marine Electronics Marine Hardware Marine Radios & Accessories Trolling Motors Water Toys & Skis Police Equipment All Items -> Boat Accessories -> Boat Motor Parts and Acc. -> Sierra Supply Boat Motor Parts - Page 23 Sierra Supply Boat Motor Parts - Page 23 SIERRA 18/25 HORSEPOWER BAFFLE GASKET -- 2-PACK Sierra Part Num: 18-2877-9 $4.61 SIERRA 25/35 HORSEPOWER ADAPTER-POWERHEAD GASKET -- JOHNSON/EVINRUDE 2-PACK Sierra Part Num: 18-2878-9 $8.88 SIERRA 25/35 HORSEPOWER CYLINDER HEAD WATER GASKET -- JOHNSON/EVINRUDE 2-PACK Sierra Part Num: 18-2856-9 $3.70 SIERRA 25/35 HORSEPOWER MANIFOLD TO LEAF PLATE GASKET -- JOHNSON/EVINRUDE 2-PACK Sierra Part Num: 18-2862-9 $3.46 SIERRA 3-CYLINDER ADAPTER-POWERHEAD GASKET -- J)OHNSON/EVINRUDE 2-PACK Sierra Part Num: 18-2865-9 $7.22 SIERRA 3-CYLINDER CARBURETOR TO SILENCER GASKET -- JOHNSON/eVINRUDE/OMC Sierra Part Num: 18-0975-9 $3.44 SIERRA 3-CYLINDER CRANKCASE TO CYLINDER BLOCK GASKET -- 5-PACK Sierra Part Num: 18-2512-9 $11.06 SIERRA 3-CYLINDER THERMOSTAT COVER GASKET -- JOHNSON/EVINRUDE Sierra Part Num: 18-2548-9 $1.61 SIERRA 3-CYLINDER THERMOSTAT GASKET -- JOHNSON/eVINRUDE 2-PACK Sierra Part Num: 18-0929-9 $1.13 SIERRA 30-50 HORSEPOWER BLOCK COVER GASKET -- MERCURY/MARINER 2-PACK Sierra Part Num: 18-2805-9 $6.38 SIERRA 4 & 6 CYLINDER THERMOSTAT COVER GASKET -- MERCRUISER 2-PACK Sierra Part Num: 18-2831-9 $2.00 SIERRA 4-CYLINDER THERMOSTAT GASKET -- MERCRUISER Sierra Part Num: 18-2555-9 $1.95 SIERRA 4/6 CYLINDER THERMOSTAT HOUSING GASKET -- OMC/MERCURISER/YAMAHA/GM Sierra Part Num: 18-0164-9 $2.41 SIERRA 52-90-115-140 HORSEPOWER POWERHEAD GASKET -- MERCURY/MARINER 2-PACK Sierra Part Num: 18-2835-9 $10.42 SIERRA 6 HORSEPOWER BRAING HOUSING GASKET -- JOHNSON/EVINRUDE/OMC Sierra Part Num: 18-2891-9 $1.93 SIERRA 9.9 1.5 HORSEPOWER WATER COVER GASKET -- JOHNSON/EVINRUDE 2-PACK Sierra Part Num: 18-2905-9 $2.55 SIERRA 9.9/15 HORSEPOWER EXHAUST COVER GASKET -- JOHNSON/EVINRUDE 2-PACK Sierra Part Num: 18-2853-9 $3.16 SIERRA 9.9/15 HORSEPOWER INNER LEAF PLATE GASKET -- JOHNSON/EVINRUDE 2-PACK Sierra Part Num: 18-0959-9 $3.47 SIERRA 9.9/15 HORSEPOWER OUTER LEAFPLATE GASKET -- JOHNSON/EVINRUDE/OMC Sierra Part Num: 18-0122-9 $2.18 SIERRA 90-115 HORSEPOWER BLOCK COVER GASKET -- MERCURY/MARINER 2-PACK Sierra Part Num: 18-2807-9 $15.64 SIERRA ADAPTER GASKET -- OMC Sierra Part Num: 18-1205-9 $8.72 SIERRA BAFFLE PLATE EXHAUST MANIFOLD COVER GASKET -- MERCURY/MARINER 2-PACK Sierra Part Num: 18-2836-9 $5.47 SIERRA BASE GASKET -- MERCRUISER 2-PACK Sierra Part Num: 18-2848-9 $3.95 SIERRA BEARING Sierra Part Num: 18-1179 $18.06 SIERRA BELL HOUSING GASKET -- MERCRUISER 5-PACK Sierra Part Num: 18-2840-9 $10.19 SIERRA BLOCK COVER GASKET -- 2-PACK Sierra Part Num: 18-2504-9 $7.84 SIERRA BLOCK COVER GASKET -- MERCURY/MARINER 2-PACK Sierra Part Num: 18-2809-9 $12.18 SIERRA BLOCK COVER GASKET -- MERCURY/MARINER 2-PACK Sierra Part Num: 18-2810-9 $11.38 SIERRA BY-PASS COVER GASKET -- JOHNSON/EVINRUDE 2-PACK Sierra Part Num: 18-2876-9 $2.56 SIERRA CARBURETOR FLANGE GASKET -- 2-PACK Sierra Part Num: 18-2800-9 $1.85 SIERRA CARBURETOR FLANGE GASKET -- CHRYSLER/FORCE 2-PACK Sierra Part Num: 18-0855-9 $2.03 SIERRA CARBURETOR FLANGE GASKET -- MERCURY/MARINER 2-PACK Sierra Part Num: 18-2802-9 $1.76 SIERRA CARBURETOR GASKET -- CHRYSLER/FORCE 2-PACK Sierra Part Num: 18-0315-9 $2.97 SIERRA CARBURETOR GASKET -- CHRYSLER/FORCE 2-PACK Sierra Part Num: 18-0960-9 $32.90 SIERRA CARBURETOR GASKET -- JOHNSON/EVINRUDE/OMC Sierra Part Num: 18-0118-9 $1.65 SIERRA CARBURETOR MOUNTING GASKET Sierra Part Num: 18-0846-9 $4.65 SIERRA CARBURETOR MOUNTING GASKET -- MERCRUISER Sierra Part Num: 18-0994-9 $4.05 SIERRA CRANKCASE TO CYLINDER BLOCK GASKET -- 5-PACK Sierra Part Num: 18-2513-9 $6.15 SIERRA CYLINDER BLOCK COVER GASKET -- 2-PACK Sierra Part Num: 18-2837-9 $3.91 SIERRA CYLINDER BLOCK COVER GASKET -- MERCRUISER 2-PACK Sierra Part Num: 18-2507-9 $7.49 SIERRA CYLINDER COVER GASKET -- MERCURY/MARINER 2-PACK Sierra Part Num: 18-2808-9 $5.74 SIERRA CYLINDER COVER GASKET -- V6 Sierra Part Num: 18-2806-9 $9.56 SIERRA DETENT BALL -- JOHNSON/EVINRUDE/OMC STERNDRIVE/COBRA Sierra Part Num: 18-2243-9 $5.07 SIERRA DISTRIBUTOR -- OMC STERNDRIVE/COBRA FORD 351W Sierra Part Num: 18-5489 $506.95 SIERRA DIVIDER PLATE GASKET -- MERCURY 2-PACK Sierra Part Num: 18-2502-9 $12.35 SIERRA DRIVE SHAFT GASKET -- 2-PACK Sierra Part Num: 18-2503-9 $20.47 SIERRA DRIVE SHAFT HANG-PLATE Sierra Part Num: 18-2511-9 $19.33 SIERRA DRIVE SHAFT HOUSING TO BELL HOUSING GASKET -- MERCURISER 2-PACK Sierra Part Num: 18-2556-9 $21.17 SIERRA DRIVE SHAFT HOUSING-BELL HOUSING GASKET -- MERCRUISER 5-PACK Sierra Part Num: 18-2820-9 $20.69 SIERRA END CAP TO MANIFOLD GASKET -- MERCRUISER Sierra Part Num: 18-1209-9 $3.02 SIERRA EXHAUST COVER GASKET -- MERCURY/MARINER 2-PACK Sierra Part Num: 18-2839-9 $12.74 SIERRA EXHAUST ELBOW GASKET -- OMC STERNDRIVE/COBRA Sierra Part Num: 18-0943-9 $4.26 SIERRA EXHAUST ELBOW GASKET -- OMC STERNDRIVE/COBRA 2-PACK Sierra Part Num: 18-2861-9 $2.69 SIERRA EXHAUST ELBOW GASKET -- OMC STERNDRIVE/COBRA 2-PACK Sierra Part Num: 18-2875-9 $10.70 SIERRA EXHAUST ELBOW GASKET -- VOLVO PENTA Sierra Part Num: 18-2520-9 $15.05 SIERRA EXHAUST ELBOW MOUNTING GASKET -- MERCRUISER Sierra Part Num: 18-0885-9 $4.48 SIERRA EXHAUST ELBOW MOUNTING GASKET -- MERCRUISER Sierra Part Num: 18-2819-9 $2.72 SIERRA EXHAUST ELBOW TO MANIFOLD GASKET -- MERCRUISER 5-PACK Sierra Part Num: 18-2833-9 $5.19 SIERRA EXHAUST ELBOW TO MANIFOLD GASKET -- 2-PACK Sierra Part Num: 18-2849-9 $11.82 SIERRA EXHAUST MANIFOLD GASKET -- JOHNSON/EVINRUDE/OMC Sierra Part Num: 18-0106-9 $4.33 SIERRA EXHAUST PLATE GASKET -- 2-PACK Sierra Part Num: 18-2506-9 $14.95 SIERRA EXHAUST PLATE GASKET -- 2-PACK Sierra Part Num: 18-2508-9 $14.85 SIERRA EXHAUST PORT PLATE GASKET -- CHRYSLER/FORCE Sierra Part Num: 18-0119-9 $8.37 SIERRA EXHAUST RISER GASKET -- 2-PACK Sierra Part Num: 18-2854-9 $6.87 SIERRA FACE PLATE TO WATER PUMP COVER IMPELLER GASKET -- MERCRUISER 2-PACK Sierra Part Num: 18-2563-9 $3.85 SIERRA FACE PLATE TO WATER PUMP COVER IMPELLER GASKET -- MERCRUISER 2-PACK Sierra Part Num: 18-2566-9 $3.49 SIERRA FILTER CAP TO PUMP GASKET -- JOHNSON/EVINRUDE 2-PACK Sierra Part Num: 18-2879-9 $5.18 SIERRA FILTER COVER GASKET -- MERCRUISER 2-PACK Sierra Part Num: 18-2569-9 $0.92 SIERRA FUEL PUMP MOUNTING GASKET -- JOHNSON/EVINRUDE Sierra Part Num: 18-0850-9 $3.08 SIERRA FUEL PUMP MOUNTING GASKET -- YAMAHA 2-PACK Sierra Part Num: 18-0889-9 $4.33 SIERRA GASKET Sierra Part Num: 18-0398-9 $4.06 SIERRA GASKET Sierra Part Num: 18-0440-9 $4.06 SIERRA GASKET Sierra Part Num: 18-0882-9 $1.37 SIERRA GASKET Sierra Part Num: 18-0914-9 $5.03 SIERRA GASKET Sierra Part Num: 18-0922-9 $3.26 SIERRA GASKET Sierra Part Num: 18-0953-9 $2.94 SIERRA GASKET Sierra Part Num: 18-2517-9 $2.24 SIERRA GASKET Sierra Part Num: 18-2547-9 $1.96 SIERRA GASKET Sierra Part Num: 18-2549-9 $18.70 SIERRA GASKET Sierra Part Num: 18-2571-9 $2.04 SIERRA GASKET Sierra Part Num: 18-2572-9 $1.85 SIERRA GASKET Sierra Part Num: 18-2872-9 $3.92 SIERRA GASKET -- 2-PACK Sierra Part Num: 18-2826-9 $2.32 SIERRA GASKET -- 2-PACK Sierra Part Num: 18-2841-9 $1.85 SIERRA GASKET -- 2-PACK Sierra Part Num: 18-2852-9 $10.60 SIERRA GASKET -- 2-PACK Sierra Part Num: 18-2870-9 $12.95 SIERRA GASKET -- 2-PACK Sierra Part Num: 18-2880-9 $1.99 SIERRA GASKET -- 2-PACK Sierra Part Num: 18-2887-9 $5.11 SIERRA GASKET -- 2-PACK Sierra Part Num: 18-2889-9 $2.95 SIERRA GASKET -- 2-PACK Sierra Part Num: 18-2890-9 $7.73 SIERRA GASKET -- 2-PACK Sierra Part Num: 18-2894-9 $7.11 SIERRA GASKET -- 2-PACK Sierra Part Num: 18-2900-9 $8.23 SIERRA GASKET -- 2-PACK Sierra Part Num: 18-2901-9 $7.27 SIERRA GASKET -- 2-PACK Sierra Part Num: 18-2903-9 $6.43 SIERRA GASKET -- 3-PACK Sierra Part Num: 18-2838-9 $10.18 SIERRA GASKET -- JOHNSON/EVINRUDE 2-PACK Sierra Part Num: 18-2544-9 $7.00 SIERRA GASKET -- JOHNSON/EVINRUDE 2-PACK Sierra Part Num: 18-2550-9 $16.93 SIERRA GASKET -- JOHNSON/EVINRUDE 2-PACK Sierra Part Num: 18-2857-9 $2.91 SIERRA GASKET -- MERCRUISER 2-PACK Sierra Part Num: 18-2567-9 $3.47 SIERRA GASKET -- MERCRUISER 2-PACK Sierra Part Num: 18-2573-9 $12.75 SIERRA GASKET -- MERCRUISER 2-PACK Sierra Part Num: 18-2574-9 $13.62 SIERRA GASKET -- MERCRUISER 2-PACK Sierra Part Num: 18-2575-9 $1.25 SIERRA GASKET -- MERCRUISER/MERCURY/MARINER Sierra Part Num: 18-2825-9 $3.02 SIERRA GASKET -- OMC Sierra Part Num: 18-0963-9 $9.94 SIERRA GASKET -- OMC Sierra Part Num: 18-0983-9 $4.21 SIERRA GASKET -- OMC Sierra Part Num: 18-0987-9 $7.98 SIERRA GASKET -- OMC Sierra Part Num: 18-0991-9 $1.69 SIERRA GASKET WASHER Sierra Part Num: 18-0188-9 $1.50 SIERRA GEAR HOUSING SEAL KIT -- MERCURY/MARINER Sierra Part Num: 18-2646-1 $51.07 SIERRA GROMMET Sierra Part Num: 18-2703-9 $1.61 SIERRA GROMMET Sierra Part Num: 18-2708-9 $5.05 SIERRA GUIDE TUBE -- MERCRUISER GENERATION II Sierra Part Num: 18-3222 $3.95 SIERRA HEAD GASKET -- JOHNSON/EVINRUDE/OMC 2-PACK Sierra Part Num: 18-2884-9 $7.27 SIERRA HOUSINGTO TANK GASKET -- 2-PACK Sierra Part Num: 18-2881-9 $5.50 SIERRA IMPELLER GASKET Sierra Part Num: 18-2560-9 $3.53 SIERRA IMPELLER GASKET Sierra Part Num: 18-2562-9 $2.48 SIERRA IMPELLER GASKET Sierra Part Num: 18-2565-9 $11.14 SIERRA IMPELLER PLATE GASKET -- JOHNSON/EVINRUDE/OMC Sierra Part Num: 18-0124-9 $1.44 SIERRA INTAKE MANIFOLD GASKET Sierra Part Num: 18-0771-9 $4.61 SIERRA INTAKE MANIFOLD GASKET -- JOHNSON/EVINRUDE 2-PACK Sierra Part Num: 18-0981-9 $3.25 SIERRA LOWER EXHAUST TO INTAKE MANIFOLD GASKET -- MERCRUISER 2-PACK Sierra Part Num: 18-0160-9 $4.34 SIERRA LOWER UNIT CARRIER SCREW Sierra Part Num: 18-2379-9 $21.39 SIERRA LOWER WATER PUMP BASE TO FACE PLATE GASKET -- MERCURY/MARINER 2-PACK Sierra Part Num: 18-2823-9 $2.46 SIERRA MAINFOLD END CAP GASKET -- MERCRUISER 2-PACK Sierra Part Num: 18-2832-9 $3.67 SIERRA MAINFOLD GASKET -- OMC STERNDRIVE/COBRA Sierra Part Num: 18-2902-9 $11.97 SIERRA MANIFOLD END CAP GASKET -- OMC STERNDRIVE/COBRA Sierra Part Num: 18-2883-9 $4.48 SIERRA MANIFOLD END CAP GASKET -- OMC STERNDRIVE/COBRA 2-PACK Sierra Part Num: 18-2860-9 $4.34 SIERRA MANIFOLD TO CRANKCASE GASKET -- JOHNSON/EVINRUDE/OMC 2-PACK Sierra Part Num: 18-2867-9 $6.68 SIERRA MANIFOLD TO CYLINDER HEAD GASKET -- MERCRUISER Sierra Part Num: 18-1204-9 $16.77 SIERRA PORT COVER GASKET -- CHRYSLER/FORCE Sierra Part Num: 18-0869-9 $12.66 SIERRA POWER TILT/TRIM BUSHING -- 4-PACK Sierra Part Num: 18-2702-04 $11.91 SIERRA PUMP MOUNTING GASKET -- YAMAHA 2-PACK Sierra Part Num: 18-0891-9 $3.64 SIERRA PUSH ROD COVER GASKET -- MERCRUISER Sierra Part Num: 18-0328-9 $12.46 SIERRA REAR MAIN SEAL -- MERCRUISER Sierra Part Num: 18-1211 $56.39 SIERRA RECTIFIER MOUNTING GASKET -- JOHNSON/EVINRUDE/OMC Sierra Part Num: 18-0155-9 $5.89 SIERRA REED BLOCK HOUSING GASKET -- 2-PACK Sierra Part Num: 18-2501-9 $10.88 SIERRA REED BOX GASKET -- JOHNSON/EVINRUDE Sierra Part Num: 18-0130-9 $32.16 SIERRA RUBBER SEAL Sierra Part Num: 18-2769-9 $1.81 SIERRA RUBBER V-4/V-6 IMPELLER HOUSING SEAL -- JOHNSON/EVINRUDE Sierra Part Num: 18-2536-9 $23.07 SIERRA SCREW Sierra Part Num: 18-2377-9 $11.96 SIERRA SEAL -- JOHNSON/EVINRUDE 5-PACK Sierra Part Num: 18-0923-9 $1.58 SIERRA SEALING RING -- VOLVO PENTA 5-PACK Sierra Part Num: $26.77 SIERRA SHIFT HOUSING COVER-GEARCASE GASKET -- 2-PACK Sierra Part Num: 18-2855-9 $1.57 SIERRA SHIFT HOUSING GASKET -- JOHNSON/EVINRUDE/OMC Sierra Part Num: 18-0110-9 $32.16 SIERRA SHIFT SLIDE SCREW -- MERCRUISER Sierra Part Num: 18-2163-9 $5.50 SIERRA SHIM -- JOHNSON/EVINRUDE .003 PINION Sierra Part Num: 18-2229-9 $3.58 SIERRA SHIM -- JOHNSON/EVINRUDE .005 Sierra Part Num: 18-2234-9 $2.18 SIERRA SIER ALT 55AMP SERPENTINE Sierra Part Num: 18-5967 $208.33 SIERRA SIER ALT 55AMP SGL PULLY Sierra Part Num: 18-5966 $187.50 SIERRA SIER BOOT SPARK PLUG $3.01 SIERRA SIER DISTRIBUTION CAP $25.58 SIERRA SIER GASKET Sierra Part Num: 18-1235 $30.06 SIERRA SIER GASKET CYL HEAD COVR $3.67 SIERRA SIER HD GSK 1984-87 120HP $32.87 SIERRA SIER HD GSKT 1984-87 50HP $24.22 SIERRA SIER HEAD GASKET 1984-87 $59.11 SIERRA SIER HEAD GASKET 45-50HP $20.89 SIERRA SIER HEAD GASKET 50HP $19.67 SIERRA SIER HEAD GASKET 9.9 15HP $8.83 SIERRA SIER HEAD GSKT MID RANGE $28.97 SIERRA SIER OIL FILTER F15 & F40 $11.13 SIERRA SIER TRIM MTR/92-92 3RAM $258.47 SIERRA SIER VOLT/REG 16A-20A/93 $151.76 SIERRA SIER VOLT/REG, 16A, 40A $115.42 SIERRA SIER VOLT/REG-RING $115.44 SIERRA STARBOARD V-4 CYLINDER GASKET -- JOHNSON-EVINVRUDE/OMC 2-PACK Sierra Part Num: 18-2873-9 $4.91 SIERRA STRAINER COVER SCREW GASKET -- MERCURY/MARINER 2-PACK Sierra Part Num: 18-2568-9 $0.87 SIERRA SWIVEL BEARING TO LOWER GEARCASE GASKET -- OMC STERNDRIVE/COBRA 2-PACK Sierra Part Num: 18-2851-9 $3.96 SIERRA THERMOSTAT COVER GASKET -- CHRYSLER/FORCE 2-PACK Sierra Part Num: 18-0854-9 $1.88 SIERRA THERMOSTAT COVER GASKET -- MERCRUISER Sierra Part Num: 18-2552-9 $1.74 SIERRA THERMOSTAT COVER GASKET -- MERCRUISER Sierra Part Num: 18-2553-9 $2.11 SIERRA THERMOSTAT COVER GASKET -- MERCRUISER FORD V-8 Sierra Part Num: 18-2834-9 $2.83 SIERRA THERMOSTAT GASKET -- MERCURISER/OMC Sierra Part Num: 18-0182-9 $2.04 SIERRA THERMOSTAT GASKET -- OMC 2-PACK Sierra Part Num: 18-1202-9 $1.82 SIERRA TILT CLUTCH COVER GASKET -- OMC STERNDRIVE/COBRA Sierra Part Num: 18-2863-9 $2.62 SIERRA TIMING CHAIN GASKET -- CRUSADER Sierra Part Num: 18-0976-9 $4.33 SIERRA TIMING COVER GASKET -- MERCRUISER Sierra Part Num: 18-1213 $20.03 SIERRA TRIM CYLINDER END CAP -- MERCRUISER Sierra Part Num: 18-2373 $58.17 SIERRA TRUNION CAP GASKET -- JOHNSON/EVINRUDE 2-PACK Sierra Part Num: 18-0949-9 $1.74 SIERRA UPPER FACE PLATE GASKET Sierra Part Num: 18-2827-9 $1.65 SIERRA UPPER FACE PLATE TO PUMP BODY GASKET -- MERCURY/MARINER 2-PACK Sierra Part Num: 18-2824-9 $1.85 SIERRA V-4 ADAPTER-POWERHEAD GASKET -- JOHNSON/EVINRUDE/OMC 2-PACK Sierra Part Num: 18-2864-9 $15.83 SIERRA V-4 EXHAUST COVER GASKET -- 2-PACK Sierra Part Num: 18-2866-9 $10.18 SIERRA V-4 MANIFOLD GASKET -- JOHNSON/EVINRUDE Sierra Part Num: 18-0977-9 $1.26 SIERRA V-4/V-6 CARBURETOR TO MANIFOLD GASKET -- JOHNSON/EVINRUDE/OMC 2-PACK Sierra Part Num: 18-0134-9 $1.88 SIERRA V-4/V-6/V-8 IMPELLER GASKET -- JOHNSON/EVINRUDE 2-PACK Sierra Part Num: 18-2557-9 $3.63 SIERRA V-6 EXHAUST PLATE GASKET -- JOHNSON/EVINRUDE 2-PACK Sierra Part Num: 18-2545-9 $11.35 SIERRA V-6 THERMOSTAT GASKET -- JOHNSON/EVINRUDE/OMC 2-PACK Sierra Part Num: 18-2546-9 $1.81 SIERRA V-6/V-8 THERMOSTAT COVER GASKET -- MERCRUISER Sierra Part Num: 18-2554-9 $5.71 SIERRA V-8 THERMOSTAT COVER GASKET -- MERCRUISER 2-PACK Sierra Part Num: 18-2844-9 $2.06 SIERRA VALVE COVER GASKET -- VOLVO PENTA 3-PACK Sierra Part Num: 18-2521-9 $13.99 SIERRA WATER CIRCULATING PUMP -- MERCURY/MARINER Sierra Part Num: 18-3574 $143.50 SIERRA WATER PUMP BASE TO FACE PLATE IMPELLER GASKET -- MERCURY/MARINER 2-PACK Sierra Part Num: 18-2564-9 $3.74