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!

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,...
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
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...
1-1/8" X 4" A.R.E Inboard Shaft System and Coupler <b>With 7/16" Bolt Holes</b> Hurth Ski Vee 1-1/8" X 4" A.R.E Inboard Shaft System and Coupler <b>With 7/16" Bolt Holes</b> Hurth Ski Vee
27%
$562.00 $768.00
Dual Taper, Pricing Good For Shafts Up To 5' You Must Supply Us With The "A" Shaft Length Measurement. Please follow the illustration in the pictures and be...
1-1/4" PSS Shaft Seal Kit For 1-1/4" Diameter Drive Shafts Comes With Install Kit 1-1/4" 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...
STRUT - 15 DEGREE - 1 (ONE) INCH SHAFT 6 HOLE BOLT PATTERN STSL-15 INCLUDES STRUT BEARINGS
31%
$530.29 $769.69
Fits boats with 1" ONE INCH driveshaft and 6 bolt mounting pattern15 degree. Has 6 Mounting Holes and includes brass shelled rubber strut bushings! All...
STRUT - MASTERCRAFT WITH <b>1" ONE INCH</b> DRIVE SHAFT - INCLUDES NEW BEARINGS
33%
$516.00 $769.69
Fits Mastercraft boats with 1" ONE INCH driveshaft and 8 bolt mounting pattern OEM# MHSTRUT723-1.0 Has 8 Mounting Holes and includes brass shelled rubber strut bushings!...
1-1/8" X 5" A.R.E. Inboard Shaft System Splined Inverted Coupler Hurth Dual Taper 1-1/8" X 5" A.R.E. Inboard Shaft System Splined Inverted Coupler Hurth
6%
$817.00 $866.00
Dual Taper, Pricing Good For Shafts Up To 5' You Must Supply Us With The "A" Shaft Length Measurement. Please follow the illustration in the pictures and be...
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...
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...
1" PSS Shaft Seal Kit 1" Diameter Drive Shafts Comes With Install Kit 1" 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...
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