Johnson Outboard Gearcase & Drive Parts

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Parts Selection Guide

Find the parts you need

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Prop Selection Guide

Find the right prop for your boat

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      • SEI Johnson/Evinrude V4 2.25: 1 Replacement Lower Unit
        $1,670.52
        $1,392.10

        SEI Johnson/Evinrude V4 2.25: 1 Replacement Lower Unit Note for purchasing: You must verify your Gear Ratio. Call for application assistance if needed, and have your engine serial number ready when calling. The SEI 306 replacement lower unit...

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      • SEI Johnson/Evinrude V4 Early Model Repl Lower Unit
        $1,670.52
        $1,392.10

        Sterndrive Engineering 304 Johnson/Evinrude V4 Early Model Repl Lower Unit Note for purchasing: You must verify your Gear Ratio. Call for application assistance if needed, and have your engine serial number ready when calling. The SEI 304...

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      • CLEARANCE
        Sierra 18-1723 Lower Drive Shaft
        $195.99
        $130.99

        Sierra 18-1723 Lower Drive Shaft Sierra replacement Lower Drive Shaft for use on V-4 60 degree Johnson/Evinrude Outboard Engines, includes:  E100, E115, E75, E90, J115 & J90 Interchangeable with: Johnson/Evinrude...

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      • Sierra 18-2012 Oil Seal
        $21.99
        $14.99

        Sierra 18-2012 Oil Seal Sierra replacement oil seal for Johnson/Evinrude Outboards and OMC Stern Drives. O.D.: 1.499" Shaft Size: 1.000" Width: 0.250" Interchangeable with: GLM 85110 Johnson/Evinrude Outboard 0310599 OMC Stern...

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      • Sierra 18-2020 Oil Seal
        $23.99
        $16.99

        Sierra 18-2020 Oil Seal O.D.: 3.000" Shaft Size: 2.500" Width: 0.250" Interchangeable with: GLM 86040 Mallory 9-76228 OMC Stern Drive 310649

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      • Sierra 18-2093 Oil Seal
        $30.99
        $21.99

        Sierra 18-2093 Oil Seal Sierra replacement oil seal for Johnson/Evinrude Outboards. Interchangeable with: GLM 87120 Johnson/Evinrude Outboard 319664 333096 398051

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      • Sierra 18-7129-9 O-Ring (Priced Per Pkg Of 5)
        $9.99
        $7.49

        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)
        $15.49
        $11.99

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

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      • Sierra 18-8325 Evinrude/Johnson Oil Seal
        $9.99
        $7.49

        Sierra 18-8325 Evinrude/Johnson Oil Seal Sierra replacement oil seal for Evinrude/Johnson Outboards. O.D.: 41.5 mm Shaft Size: 28 mm Width: 7/11" Interchangeable with: GLM 86013 Johnson/Evinrude...

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      Johnson OEM Engine Parts Finder

      Johnson Outboard Gearcase

      Shims, yokes, and spool- what are these parts for and where do they go in your Johnson outboard gearcase? So begins the quandary of every newbie marine DIYer. Just the idea of “gearcase” is intimidating but know that you’ve made a wise choice in buying your Johnson engine. Hoping to perform preventative maintenance or repair a broken part is next on your ‘To Do” to “To Done” list. So be aware that Wholesale Marine has all that you need for your Johnson outboard gearcase for just about every Johnson drive. And the staffers who can guide you through selecting the right part for your Johnson gearcase. Now, doesn’t that make you feel more confident already? It should! Read on! 

      Where to Begin?

      Whether a pro boater or a casual weekend cruiser, your Johnson outboard gearcase needs attention from time to time. The delicate intricacies of the gearcase are not to be taken lightly, and we recommend referring to your engine’s manual, manufacturer’s website, or a number of other resources as you diagnose or update your boat’s engine. Once you know what you are looking for, we strive to make it as easy as possible to locate it, beginning with our Parts Selection Guide. You can depend on Wholesale Marine to provide high quality Johnson outboard parts and Johnson sterndrive parts from the top brands in the industry. We offer a wide array of Johnson outboard gearcase components. We carry a comprehensive inventory of Johnson outboard parts including Johnson Outboard Gear Housing Seal Kits, Johnson Outboard Prop & Driveshaft Seals, Johnson Outboard Drive Shafts, Johnson Outboard Prop Shafts, Johnson Outboard Forward Gears, Johnson Outboard Gearcase Bearings, Johnson Outboard Gearcase Complete, and Johnson Outboard Shims. By now you should be convinced that Wholesale Marine will carry whatever your Johnson outboard gearcase needs.

      Whether an engine expert or a newer novice, we want to assist you in your Johnson outboard gearcase journey. We have a highly-trained team full of experienced boaters who have been in your shoes and can help you choose the right part from the get-go. We are here Monday through Friday, 9:00 AM to 6:00 PM EST, at (877) 388-2628 to help you narrow down your search and select just the right part for the job. Our Captain’s Club Rewards Program, shipping perks, and price match guarantee are added bonuses to ensure each and every customers’ satisfaction. Remember, you can always depend on Wholesale Marine for high quality Johnson outboard parts from the top brands in the industry. So plan to call us for all your boating needs today!