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UNDERWATER GEAR

Underwater Hull Boat Parts

If you need underwater gear, My Inboard Marine is the right place for you. We carry drive shafts, nuts, wrenches, shaft systems, seals, struts, rudders, steering systems and parts plus so much more! All designed to withstand the harsh effects of long exposure to water. Whatever tools or parts you need for your boat, you can find it right here at My Inboard Marine.

If you have any questions pertaining to our products, feel free to contact us today at 803-766-8586 or email us at sales@myinboardmarine.com and we will respond to help. Purchase your underwater hull boat parts from us today!

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Coupler Fine Spline Output Coupler Velvet Drive OEM Part VD-1000031001
Coupler Fine Spline Output Coupler Velvet Drive OEM Part VD-1000031001
22%
$283.00 $360.82
Coupler Fine Spline Output Coupler Velvet Drive OEM Part VD-1000031001
$283.00 $360.82
Output Shaft Coupler Fine Spline OEM by Velvet Drive Brand
Coupling Bolt Hardware Set For A.R.E. Drive Shaft System Used On The 4 Inch Coupler
COUPLING BOLT HARDWARE SET FOR A.R.E. DRIVE SHAFT SYSTEM USED ON THE 4 INCH COUPLER
16%
$15.95 $18.99
Coupling Bolt Hardware Set For A.R.E. Drive Shaft System Used On The 4 Inch Coupler
$15.95 $18.99
Complete Set of Hardware for your 4" INCH A.R.E. Drive Shaft System Coupling COMPLETE SET of 4 Bolts for your coupler Bolt Size: 3/8" x...
Coupling Nut Nylock 3/4-10 Zinc Coating Steel Prevents Shaft Galling-Seizing OEM 0253ZINC0.750-10
Coupling Nut Nylock 3/4-10 Zinc Coating Steel Prevents Shaft Galling-Seizing OEM 0253ZINC0.750-10 Coupling Nut Nylock 3/4-10 Zinc Coating Steel Prevents Shaft Galling-Seizing OEM 0253ZINC0.750-10
38%
$15.50 $24.99
Coupling Nut Nylock 3/4-10 Zinc Coating Steel Prevents Shaft Galling-Seizing OEM 0253ZINC0.750-10
$15.50 $24.99
The Nylock COUPLING Nut is zinc coated steel and prevents galling; seizing of the shaft threads and shaft! Fits 3/4" Shafts 3/4 - 10 Thread...
CUSTSHAFT-1.12 PSAT17/1.12X57.250 Assy with REV BW5 Steel Coupler
CUSTSHAFT-1.12 PSAT17/1.12X57.250 Assy with REV BW5 Steel Coupler
27%
$562.00 $768.00
CUSTSHAFT-1.12 PSAT17/1.12X57.250 Assy with REV BW5 Steel Coupler
$562.00 $768.00
You Must Supply Us With The "A" Shaft Length Measurement. Please follow the illustration in the pictures and be very exact. Measure your shaft with the transmission coupler...
Flex Gland Dripless Drive Shaft Seal Kit 1-1/8" By Johnson Propellers. New!
FLEX GLAND SYSTEM DRIVE SHAFT SEAL KIT 1-1/8" BY JOHNSON PROPELLER NEW! Flex Gland Dripless Drive Shaft Seal Kit <b>1-1/8"</b> By Johnson Propellers. New!
$110.00
Flex Gland Dripless Drive Shaft Seal Kit 1-1/8" By Johnson Propellers. New!
$110.00
Johnson Propellers Dripless Shaft Seal. For 1-1/8" drive shafts. Does not require a water supply from the engine. Also designed to provide more flexibility in...
Flex Gland Dripless Drive Shaft Seal Kit 1" By Johnson Propellers New!
FLEX GLAND SYSTEM DRIVE SHAFT SEAL KIT 1-1/8" BY JOHNSON PROPELLER NEW! Flex Gland Dripless Drive Shaft Seal Kit <b>1"</b> By Johnson Propellers New!
2%
$108.00 $110.00
Flex Gland Dripless Drive Shaft Seal Kit 1" By Johnson Propellers New!
$108.00 $110.00
Johnson Propellers Dripless Shaft Seal. For 1" drive shafts. Does not require a water supply from the engine. Also designed to provide more flexibility in...
Flex Gland Dripless Drive Shaft Seal Kit 1-1/4" By Johnson Propellers. New!
Flex Gland Dripless Drive Shaft Seal Kit 1-1/4" By Johnson Propellers. New! Flex Gland Dripless Drive Shaft Seal Kit 1-1/4" By Johnson Propellers. New!
3%
$115.00 $118.00
Flex Gland Dripless Drive Shaft Seal Kit 1-1/4" By Johnson Propellers. New!
$115.00 $118.00
Johnson Propellers Dripless Shaft Seal. For 1-1/4" drive shafts. Does not require a water supply from the engine. Also designed to provide more flexibility in...
Flex Gland Seal and Housing Only - Fits The 1" Flex Gland Dripless Shaft Seal by Johnson Propellers
Flex Gland Seal and Housing Only - Fits The <b>1"</b> Flex Gland Dripless Shaft Seal by Johnson Propellers Flex Gland Seal and Housing Only - Fits The <b>1"</b> Flex Gland Dripless Shaft Seal by Johnson Propellers
12%
$38.72 $44.00
Flex Gland Seal and Housing Only - Fits The 1" Flex Gland Dripless Shaft Seal by Johnson Propellers
$38.72 $44.00
Johnson Propellers Dripless Shaft Replacement Seal and Housing Only For 1" drive shafts. Replaces your SEAL and HOUSING in your current 1" Flex Gland System! If...
Flex Gland Seal and Housing Only - Fits The 1-1/4" Flex Gland Dripless Shaft Seal by Johnson Propellers
Flex Gland Seal and Housing Only - Fits The <b>1-1/4"</b> Flex Gland Dripless Shaft Seal by Johnson Propellers Flex Gland Seal and Housing Only - Fits The <b>1-1/4"</b> Flex Gland Dripless Shaft Seal by Johnson Propellers
17%
$40.00 $48.00
Flex Gland Seal and Housing Only - Fits The 1-1/4" Flex Gland Dripless Shaft Seal by Johnson Propellers
$40.00 $48.00
Johnson Propellers Dripless Shaft Replacement Seal and Housing Only For 1-1/4" drive shafts. Replaces your SEAL and HOUSING in your current 1-1/4" Flex Gland System! If...
Flex Gland Seal and Housing Only - Fits The 1-1/8" Flex Gland Dripless Shaft Seal by Johnson Propellers
Flex Gland Seal and Housing Only - Fits The <b>1-1/8"</b> Flex Gland Dripless Shaft Seal by Johnson Propellers Flex Gland Seal and Housing Only - Fits The <b>1-1/8"</b> Flex Gland Dripless Shaft Seal by Johnson Propellers
12%
$38.72 $44.00
Flex Gland Seal and Housing Only - Fits The 1-1/8" Flex Gland Dripless Shaft Seal by Johnson Propellers
$38.72 $44.00
Johnson Propellers Dripless Shaft Replacement Seal and Housing Only For 1-1/8" drive shafts. Replaces your SEAL and HOUSING in your current 1-1/8" Flex Gland System! If...
Hose Stuffing Box Hose 1-3/4" I.D. X 3.3"
Hose Stuffing Box Hose 1-3/4" I.D. X 3.3" Hose Stuffing Box Hose 1-3/4" I.D. X 3.3"
36%
$18.00 $27.99
Hose Stuffing Box Hose 1-3/4" I.D. X 3.3"
$18.00 $27.99
STUFFING BOX HOSE Includes 2 Stainless Steel Clamps - 1-3/4" Inside Diameter X 3.3" Long.    
Install Tool For 1" Flex Gland Seal - Fits The 1" Flex Gland Dripless Shaft Seal by Johnson Propellers OJFGB_1.00
Install Tool For 1" Flex Gland Seal - Fits The <b>1"</b> Flex Gland Dripless Shaft Seal by Johnson Propellers OJFGB_1.125 Install Tool For 1" Flex Gland Seal - Fits The <b>1"</b> Flex Gland Dripless Shaft Seal by Johnson Propellers OJFGB_1.125
16%
$16.00 $19.00
Install Tool For 1" Flex Gland Seal - Fits The 1" Flex Gland Dripless Shaft Seal by Johnson Propellers OJFGB_1.00
$16.00 $19.00
Plastic INSTALL TOOL only! Used to protect the new seal for your 1" Johnson Propellers Dripless Shaft Replacement Seal and Housing Only For 1" Flex...
Install Tool For 1-1/4" Flex Gland Seal - Fits The 1-1/4" Flex Gland Dripless Shaft Seal by Johnson Propellers OJFGB_1.25
Install Tool For 1 - 1/4" Flex Gland Seal - Fits The <b>1-1/4"</b> Flex Gland Dripless Shaft Seal by Johnson Propellers Install Tool For 1 - 1/4" Flex Gland Seal - Fits The <b>1-1/4"</b> Flex Gland Dripless Shaft Seal by Johnson Propellers
16%
$16.00 $19.00
Install Tool For 1-1/4" Flex Gland Seal - Fits The 1-1/4" Flex Gland Dripless Shaft Seal by Johnson Propellers OJFGB_1.25
$16.00 $19.00
Plastic INSTALL TOOL only! Used to protect the new seal for your 1-1/4" Johnson Propellers Dripless Shaft Replacement Seal and Housing Only For 1-1/4"Flex Gland...
Install Tool For 1-1/8" Flex Gland Seal - Fits The 1-1/8" Flex Gland Dripless Shaft Seal by Johnson Propellers OJFGB_1.125
Install Tool For 1-1/8" Flex Gland Seal - Fits The <b>1-1/8"</b> Flex Gland Dripless Shaft Seal by Johnson Propellers OJFGB_1.125 Install Tool For 1-1/8" Flex Gland Seal - Fits The <b>1-1/8"</b> Flex Gland Dripless Shaft Seal by Johnson Propellers OJFGB_1.125
16%
$16.00 $19.00
Install Tool For 1-1/8" Flex Gland Seal - Fits The 1-1/8" Flex Gland Dripless Shaft Seal by Johnson Propellers OJFGB_1.125
$16.00 $19.00
Plastic INSTALL TOOL only! Used to protect the new seal for your 1-1/8" Johnson Propellers Dripless Shaft Replacement Seal and Housing Only For 1-1/8"Flex Gland...
Ironman Prop Puller For 1" & 1-1/8" Drive Shafts
Ironman Prop Puller For 1" & 1-1/8" Drive Shafts Ironman Prop Puller For 1" & 1-1/8" Drive Shafts
20%
$105.00 $131.95
Ironman Prop Puller For 1" & 1-1/8" Drive Shafts
$105.00 $131.95
IRONMAN PROP PULLER FOR 1" & 1-1/8" DRIVE SHAFTS For 1" or 1-1/8" Shafts, 3 or 4 Blade Props  The Best Prop Puller Around!
Ironman Prop Puller For 1-1/4" Drive Shafts
Ironman Prop Puller For 1-1/4" Drive Shafts Ironman Prop Puller For 1-1/4" Drive Shafts
18%
$185.00 $225.00
Ironman Prop Puller For 1-1/4" Drive Shafts
$185.00 $225.00
For 1-1/4" Shafts, 3 or 4 Blade Props Best Prop Puller Around!  
Nut Only - Retaining Nut Fits ALL A.R.E. Drive Shaft Systems
Nut Only - Retaining Nut Fits ALL A.R.E. Drive Shaft Systems Nut Only - Retaining Nut Fits ALL A.R.E. Drive Shaft Systems
14%
$19.00 $22.00
Nut Only - Retaining Nut Fits ALL A.R.E. Drive Shaft Systems
$19.00 $22.00
NUT ONLY - Fits ALL A.R.E. Drive Shafts and couplers! See ITEM NUMBER 8 in the picture for reference please. Also note please that in...
Nylock Prop Nut Brass For 1" Or 1-1/8" Shafts Nylon Prop Nut
Nylock Prop Nut Brass For 1" Or 1-1/8" Shafts Nylon Prop Nut Nylock Prop Nut Brass For 1" Or 1-1/8" Shafts Nylon Prop Nut
27%
$13.50 $18.49
Nylock Prop Nut Brass For 1" Or 1-1/8" Shafts Nylon Prop Nut
$13.50 $18.49
Fits 1" or 1-1/8" shafts Only. 3/4-10 thread SOLD EACH If you need the nut for 1-1/4" shafts, click HERE. Recommended over a castle nut,...
Nylock Prop Nut Brass For 1-1/4" Shafts Nylon Prop Nut
Nylock Prop Nut Brass For 1-1/4" Shafts Nylon Prop Nut Nylock Prop Nut Brass For 1-1/4" Shafts Nylon Prop Nut
18%
$33.00 $40.00
Nylock Prop Nut Brass For 1-1/4" Shafts Nylon Prop Nut
$33.00 $40.00
Fits boats with 1-1/4" shafts only. NOT for 1" or 1-1/8" shafts! Only fits 1-1/4" - 7/8-9 thread If you need 1" or 1-1/8" Nylock Nut, click...
Nylock Prop Nut Kit Brass For 1" or 1-1/8 Shafts With Key And Cotter Pin OJ-3131B
Nylock Prop Nut Kit Brass For 1" or 1-1/8 Shafts With Key And Cotter Pin OJ-3131B
24%
$22.00 $28.99
Nylock Prop Nut Kit Brass For 1" or 1-1/8 Shafts With Key And Cotter Pin OJ-3131B
$22.00 $28.99
OJ Prop Nut Kit 3131B by Johnson Propeller Fits 1" - 1-1/8" Shafts Everything you need by Johnson Propeller Kit includes a 3/4″ brass Nylock...
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