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!

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 Knocker All Brass Harmonic Prop Puller - For 1" And 1-1/8" Shafts Prop Knocker All Brass Harmonic Prop Puller - For 1" And 1-1/8" Shafts
10%
$92.95 $102.95
All Brass Prop Knocker - Fits 1-1/2"Shafts 1-1/8-7 threads CNC Machined from All Brass with perfection. Threads onto the shaft, excellent for splined shafts. Simply screw...
STRUT - 15 DEGREE - 1-1/8 INCH SHAFT 6 HOLE BOLT PATTERN STSL-15 INCLUDES STRUT BEARINGS
31%
$530.29 $769.69
Fits boats with 1-1/8" driveshaft and 6 bolt mounting pattern15 degree. Has 6 Mounting Holes and includes brass shelled rubber strut bushings! All struts are...
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,...
Glide® Dripless Shaft Seal Complete Kit  1-1/4" X 2.00" OEM GMSS 1.250X2.000 KIT
6%
$175.00 $186.05
1-1/8" X 1-3/4" Glide® Dripless Shaft Complete Seal Kit  For those ready to tackle the job of replacing your existing seal system on your own,...
ACME HARMONIC PROP KIT - THE WEEKEND SAVER FULL REPLACEMENT KIT FOR 1 OR 1-1/8 INCH SHAFTS ACME Harmonic Prop Puller For 1 Or 1-1/8 Inch Shafts 5005
9%
$61.25 $67.00
By ACME Marine for 1 and 1-1/8" Shafts. 3/4" -10 UNC Awesome device that works by simply removing your prop nut, screw the harmonic puller onto...
ACME PROP PULLER FOR 1-1/4" DRIVE SHAFTS C-CLAMP STYLE INCLUDES BOLT AND CAP ACME PROP PULLER FOR 1-1/4" DRIVE SHAFTS C-CLAMP STYLE INCLUDES BOLT AND CAP
5%
$175.00 $184.00
ACME Traditional Prop Puller For 1-1/4" Shafts, 3 or 4 Blade Props Includes the Bolt, (3.10" lg. overall) & Cap with Snap Ring
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
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...
Rudder Box Assembly Ski Boat - RBST1.00-SLOT-BRG Rudder Box Assembly Ski Boat - RBST1.00-SLOT-BRG
23%
$525.00 $678.34
Rudder BOX Assembly RPTNSLOTRBSTASSY FOR MARINE HARDWARE 1" RUDDER SHAFTS ONLY RBST1.00-SLOT-BRG 4" X 4" Plate with 3/8" holes; slotted for easier installation! If you only...
Strut Bushing Set 1 Inch I.D. X 1-3/8 Inch O.D. Brass Bearings SB1.0X1.3 Strut Bushing Set 1 Inch I.D. X 1-3/8 Inch O.D. Brass Bearings SB1.0X1.3
15%
$169.00 $199.95
STRUT BEARING SET 1" I.D. x 1-3/8" O.D. Fits some Malibus, Mastercrafts, Ski Brendella, Ski Centurion's before 1992 when they went to the 1-1/8" shafts....
ACME Prop Puller For <b>1" And 1-1/8"</b> Drive Shafts C-Clamp Style Includes Bolt And Cap ACME Prop Puller For <b>1" And 1-1/8"</b> Drive Shafts C-Clamp Style Includes Bolt And Cap
17%
$165.00 $199.59
ACME Traditional Prop Puller For 1" AND 1-1/8" Shafts, 3 or 4 Blade Props Includes the Bolt, (2.81" lg. overall) & Cap with Snap Ring
Strut | Mastercraft With 1-1/8 Inch Drive Shaft Includes New Bearings
32%
$524.00 $769.69
Fits Mastercraft boats with 1-1/8" driveshaft and 8 bolt mounting pattern OEM# MHSTRUT723-1.25 Has 8 Mounting Holes and includes brass shelled rubber strut bushings! We take...
Rudder Box Backing Plate Only OEM BKPLSQSML-B
7%
$84.00 $90.66
Rudder BOX Backing Plate Only BKPLSQSML-B 4" X 4" Plate with 3/8" holes; slotted for easier installation! If you need the Complete Assembly - CLICK...
Glide® Dripless Shaft Seal 1-1/4" X 2.00" OEM GMSS 1.250X2.000
8%
$155.00 $169.00
Glide® Dripless Shaft Seal 1-1/8" X 1-3/4" GLIDE Marine Seal Systems are comprised entirely of our GLIDE-400 material and are  roudly made in the USA....
ACME HARMONIC PROP PULLER FOR 1-1/4 INCH SHAFTS 5018
13%
$72.00 $82.66
By ACME Marine for 1-1/4" Shafts. Awesome device that works by simply removing your prop nut, screw the harmonic puller onto the shaft and gently...
Strut - Tige 15 Degree 1-1/8 Inch Shaft 6 Hole Pattern - Includes Strut Bearings OEM TIGEU1004
10%
$695.00 $769.62
Fits boats with 1-1/8" driveshaft and 6 bolt mounting pattern15 degree Has 6 Mounting Holes and includes brass shelled rubber strut bushings! Tige - 15...
Prop Knocker All Brass Harmonic Prop Puller - For 1" And 1-1/8" Shafts Prop Knocker All Brass Harmonic Prop Puller - For 1" And 1-1/8" Shafts
14%
$61.95 $71.99
All Brass Prop Knocker - Fits 1-1/4"Shafts 7/8"-9 threads CNC Machined from All Brass with perfection. Threads onto the shaft, excellent for splined shafts. Simply screw...
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
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...
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
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
STUFFING BOX HOSE Includes 2 Stainless Steel Clamps - 1-3/4" Inside Diameter X 3.3" Long.    
Items 41 to 60 of 197 total