PLEASE NOTE - Some products are not immediately available. If your order will be delayed, we will e-mail you or call you and let you know.
E-MAIL US HERE about availability and we will respond quickly! We ship same day if your order was placed by 1:00 PM EST during normal business hours BASED ON AVAILABILITY.
NEXT DAY SHIPPING NOTE - Please see our Shipping Policy SATURDAY OR SUNDAY DELIVERY IS NOT AN OPTION.

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!

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
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 <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
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
20%
$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
18%
$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
14%
$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
27%
$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
18%
$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
24%
$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...
Nylock Prop Nut Brass For 1" Or 1-1/8" Or 1-1/4" Shafts With Key And Cotter Pin ACME 5008
31%
$27.00 $38.99
Fits 1" - 1-1/8" Shafts ACME 5008 ACME Prop Nut Kits include one nylon lock nut, cotter pin, and key.
Nylock Prop Nut Kit Brass For 1-1/4 Shafts With Key And Cotter Pin OJ-3123B
21%
$23.00 $28.99
OJ Prop Nut Kit 3123B by Johnson Propeller Fits 1-1/4" Shafts Everything you need by Johnson Propeller Kit includes a 3/4″ brass Nylock prop nut,...
Nut For Velvet Drive 71C and 72C Direct Drive 1 to 1 Ratio Transmissions R017002 VD-4775L
38%
$22.33 $36.02
Output Shaft Nut OEM by Velvet Drive Brand Output Shaft Nut - 4" Outside Diameter Couplers For Velvet Drive 71C and 72C direct drive transmissions...
Output Shaft Nut Velvet Drive OEM ALTO-023320 Output Shaft Nut Velvet Drive OEM ALTO-023320
10%
$24.05 $26.76
Output Shaft Nut OEM Velvet Drive transmission out flange/coupling nylock retaining nut Nut includes built in flange washer One time use requires replacement after installation...
Packing Extractor Western Pacific® OEM WPT-10160 # 1Packing Extractor Western Pacific® OEM WPT-10160 # 1 New Item By Request! Packing Extractor Western Pacific® OEM WPT-10160 # 1 New Item By Request!
22%
$10.33 $13.29
Western Pacific Trading 10160 Packing Extractor Tool #1 Extractor PERFECT for removing your old rope packing. #1 Packing Extractor Tool #1 has 7 3/4 inch...
Packing Nut Wrench 1-7/8" For Hard To Reach 1-7/8" Stuffing Box WRENCH178 Packing Nut Wrench 1-7/8" For Hard To Reach 1-7/8" Stuffing Box
17%
$29.95 $35.95
Shaft Packing Wrench for Inboards, made out of 3/8" thick Billet Aluminum. 1-7/8" This is a Stub Wrench for the hard to reach 1.875" Stuffing Box...
Packing Nut Wrench 2" For 2 Inch For Hard To Reach 2" Stuffing Box
14%
$31.95 $36.95
Shaft Packing Wrench for Inboards, made out of 3/8" thick Billet Aluminum. This is a Stub Wrench for the hard to reach 2" Stuffing Box...
Prop Nut And T-Handle Drain Buddy - The New "All Inclusive Prop Nut Wrench" by York Prop Nut And T-Handle Drain Buddy - The New "All Inclusive Prop Nut Wrench" by York
14%
$59.95 $69.99
Prop NuT-Handle Drain Buddy By: York Design and Fabrication What this wrench has to offer: - Install/Remove 7/8"-9 Prop Nut (1-1/4" Shaft) - Install/Remove 3/4"-10...
Prop Nut Brass Castle Nut For 1" or 1-1/8" Shafts Slotted Castle Nut
13%
$19.00 $21.95
Inboard Castle Nut - Fits 1" or 1-1/8" shafts. 3/4-10 thread Fits 1" or 1-1/8" shafts. This castle nut can be replaced with a Nylock...
Prop Nut Brass Castle Nut For 1-1/4" Shafts Slotted Castle Nut Prop Nut Brass Castle Nut For 1-1/4" Shafts Slotted Castle Nut
9%
$22.37 $24.69
Inboard Castle Nut - Fits 1-1/4" shafts. 7/8-9 thread
Prop Wrench A.R.E. 1-1/16 Inch x 3/4 Inch Fits All But NOT Correct Craft
15%
$34.00 $39.95
A.R.E.’s chrome nickel-plated prop wrench is laser cut from 1/4" steel and is offset for clearance. This wrench will NOT FIT Correct Craft. For Correct...
Prop Wrench A.R.E. 1-1/4" X 3/4" For All Correct Craft
12%
$35.00 $39.89
This wrench WILL FIT Correct Craft. Fits the "Castle Nut" and the 3/4" end fits the A.R.E. Ironman Prop Puller. For ALL OTHERS use Item ARE106 Helps remove the...
PSS Shaft Seal Kit 1" T-Fitting Water Supply Kit PSS Shaft Seal Kit 1" T-Fitting Water Supply Kit
23%
$50.00 $65.00
1" T-Fitting Quick install water supply KIT ONLY for the PSS Shaft Seals This kit COMES WITH the PSS Shaft Seal Kit if you purchase a PSS...
PSS Shaft Seal Kit 1-1/8" T-Fitting Water Supply Kit PSS Shaft Seal Kit 1-1/8" T-Fitting Water Supply Kit
12%
$75.00 $85.00
1+1/8" T-Fitting Quick install water supply KIT ONLY for the PSS Shaft Seals This kit COMES WITH the PSS Shaft Seal Kit if you purchase a PSS...
PSS Shaft Seal Kit 1-1/8" T-Fitting Water Supply Kit PSS Shaft Seal Kit 1-1/8" T-Fitting Water Supply Kit
23%
$50.00 $65.00
1+1/8" T-Fitting Quick install water supply KIT ONLY for the PSS Shaft Seals This kit COMES WITH the PSS Shaft Seal Kit if you purchase a PSS...
PSS Shaft Seal Kit 1" Diameter Drive Shafts Comes With Install Kit PSS Shaft Seal Kit 1" Diameter Drive Shafts Comes With Install Kit
10%
$325.00 $360.00
Fits all boats with 1" shaft and 1-3/4 length shaft log.  This kit COMES WITH the quick install kit; Item INSTKIT1.0X.37 Uses a Stainless Steel rotor that slides down...
PSS Shaft Seal Kit 1-1/8" Diameter Drive Shafts Comes With Install Kit PSS Shaft Seal Kit 1-1/8" Diameter Drive Shafts Comes With Install Kit
32%
$325.00 $479.00
Fits all boats with 1-1/8" shaft and 1-3/4 length shaft log.  COMES WITH the quick install kit; Item INSTKIT1.125X.37 Uses a Stainless Steel rotor that slides...
PSS Shaft Seal Kit For 1-1/4" Diameter Drive Shafts Comes With Install Kit PSS Shaft Seal Kit For 1-1/4" Diameter Drive Shafts Comes With Install Kit
11%
$355.00 $398.00
Fits all boats with 1-1/4" shafts This kit COMES WITH the quick install kit; Item INSTIKIT1.2X.37 Uses a Stainless Steel rotor that slides down the shaft and compresses the...
Puller for - Shafts - Bushings and Struts - The A.R.E. Slide Hammer Puller Puller for - Shafts - Bushings and Struts - The A.R.E. Slide Hammer Puller
13%
$319.00 $368.00
A.R.E. Shaft/Strut Bearing Puller The slide hammer design makes quick work of removing single-taper and double-taper drive shafts. Constructed of chrome-plated steel and features a...
Puller For Gimbal Bearings Sierra® 18-7920-2
22%
$340.56 $438.09
Gimbal Bearing Puller Sierra® 18-7920-2 Removes gimbal bearing from Mercruiser, OMC & Volvo Penta stern drives. Sierra gimbal bearing puller tool For use with Mercruiser,...
RETAINING NUT SOCKET 1-1/16" FOR THE A.R.E. DRIVE SHAFT SYSTEMS
14%
$25.00 $28.95
1-1/16" Socket with wrench flats. Needed when there is not enough room to get a regular socket/ratchet in between the couplers Fits 1" and 1-1/8"...
RETAINING NUT SOCKET 1-1/4" FOR THE A.R.E DRIVE SHAFT SYSTEMS
11%
$33.00 $36.99
1-1/4" Socket With Wrench Flats. The ARE retaining nut socket with wrench flats requires only 1" clearance to fit between the transmission and the coupling....
1/4" Standard Wax Impregnated Flax Packing 1/4" Standard Wax Impregnated Flax Packing
14%
$3.48 $4.07
1/4" Standard Wax Impregnated Flax Packing Sold Per Foot  PLEASE ENTER THE QUANTITY for each foot of rope packing. If you need 1 foot, enter...
3/16" Standard Wax Impregnated Flax Packing 3/16" Standard Wax Impregnated Flax Packing
13%
$3.49 $4.00
3/16" Standard Wax Impregnated Flax Packing Sold Per Foot PLEASE ENTER THE QUANTITY for each foot of rope packing. If you need 1 foot, enter quantity of...
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