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Parts Selection Guide

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Prop Selection Guide

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      OMC Gearcase & Drive Parts

      • Sierra 18-2337 Stub Shaft
        $122.99
        $85.99

        Sierra 18-2337 Stub Shaft Sierra replacement stub shaft fits all Cobra 1994-up except King Cobra Interchangeable with: GLM 28317 OMC Stern Drive 3850814 Volvo Penta 3850814

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      • Sierra 18-2383 Sliding Clutch
        $37.99
        $26.49

        OMC Cobra Sliding Clutch - Special Order est. 10 Days For:  3.0L (GM) 4.3L (GM) 5.0L (Ford) 5.7L (Ford) 5.8L (Ford) (1990-91) Replaces: OMC 0915272 AQU 2669 Redline RL2383 Sterndrive 91-306-06

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      • Sierra 18-2666 Upper Unit Seal Kit
        $82.49
        $57.99

        Sierra 18-2666 OMC Upper Unit Seal Kit Sierra replacement upper unit seal kit for OMC Stern Drives. Fits: 100-245 Stringer Units (1968-1972) Kit Contains: (1) 18-0939 Upper Gearcase Dipstick Gasket (4) 18-2073 Oil Seal (1) 18-3111 Water...

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      • Sierra 18-3731 Lock Nut
        $7.99
        $6.49

        Lock Nut 3/4 - 16 - Special Order est. 10 Days Replaces: OMC 0907866 Aqua Power 5190 GLM 22310 Redline RL3731

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      • Sierra 18-3769 Pinion Nut
        $18.99
        $16.99

        Pinion Nut - Special Order est. 10 Days Replaces: OMC 0911753 GLM 28460 Fits: 115 (1994 - 1997) 232 (1987 - 1990) 252 (1986) 262, 350, 460 (1989) 302, 574 (1986 - 1992) 432 (1986 - 1993) 502 (198 - 1993) 504, 754 (1986 -...

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      • Sierra 18-3770 U-Joint Nut
        $27.99
        $19.99

        U-Joint Nut - Special Order est. 10 Days For:232, 252, 262, 302, 350, 432, 434, 460, 502, 504, 574, 584, 744, 754, (1987-93) Replaces: OMC 0911937 GLM 28470

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      • Sierra 18-4805 Upper Gear Housing Complete
        $4,223.99
        $2,956.99

        Upper Gear Housing Complete for 2.5L/3.0L/5.0L OMC, Volvo - Special Order est. 10 Days Upper Gear Housing Complete, 21: 18 Ratio For: 2.5L (1986-89) 3.0L(1986-93) 5.0L(1989-93) Replaces: OMC 0986382 GLM 29920 Volvo 3858910

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      • Sierra 18-7115 O-Ring
        $1.99

        Sierra 18-7115 O-Ring Sierra replacement O-ring for marine engines. Width: 0.135" or 3.4mm I.D.: 1.735" or 44.1mm Package of 1 Interchangeable with: GLM 82240 Johnson/Evinrude Outboard 302588 Mercruiser Stern...

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      • Sierra 18-7129-9 O-Ring (Priced Per Pkg Of 5)
        $1.99
        $1.49

        Sierra 18-7129-9 O-Ring (Pkg Of 5) Sierra replacement O-ring for OMC and Evinrude/Johnson engines. I.D.: 0.970" or 24.6mm Width: 0.065" or 1.7mm Package of 5 Interchangeable with: GLM 80220 Johnson/Evinrude Outboard 314491 OMC...

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      • Sierra 18-7156-9 O-Ring (Pkg Of 5)
        $14.99
        $11.49

        Sierra 18-7156-9 O-Ring (Pkg Of 5) Sierra replacement O-ring for Mercury, Mercruiser, Johnson/Evinrude, and OMC engines. I.D.: 1.185" or 30.1mm Width: 0.100" or 2.5mm Package of 5 Interchangeable with: GLM 81230 Johnson/Evinrude...

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      OMC Sterndrive Drive System Components