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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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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 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 Bushing Set 1 Inch I.D. X 1-3/8 Inch O.D. Brass Bearings SB1.0X1.3
$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....
Prop Knocker All Brass Harmonic Prop Puller - For 1-1/4" Shafts KNOCKER114
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
Prop Knocker All Brass Harmonic Prop Puller - For 1-1/4" Shafts KNOCKER114
$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...
ACME Harmonic Prop Puller For 1-1/4 INCH Shafts 5018
ACME HARMONIC PROP PULLER FOR 1-1/4 INCH SHAFTS 5018
14%
$68.00 $78.66
ACME Harmonic Prop Puller For 1-1/4 INCH Shafts 5018
$68.00 $78.66
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...
Prop Nut Brass Castle Nut For 1-1/4" Inboard Shafts Slotted Castle Nut
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
Prop Nut Brass Castle Nut For 1-1/4" Inboard Shafts Slotted Castle Nut
$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" 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.    
Coupling Bolt Hardware Set of 4 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 of 4 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...
RETAINING NUT SOCKET 1-1/4" FOR THE A.R.E DRIVE SHAFT SYSTEMS
RETAINING NUT SOCKET 1-1/4" FOR THE A.R.E DRIVE SHAFT SYSTEMS
11%
$33.00 $36.99
RETAINING NUT SOCKET 1-1/4" FOR THE A.R.E DRIVE SHAFT SYSTEMS
$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....
Prop Knocker All Brass Harmonic Prop Puller - For 2" Shafts KNOCKER200
Prop Knocker All Brass Harmonic Prop Puller - For 2" Shafts KNOCKER200 Prop Knocker All Brass Harmonic Prop Puller - For 2" Shafts KNOCKER200
6%
$164.95 $174.95
Prop Knocker All Brass Harmonic Prop Puller - For 2" Shafts KNOCKER200
$164.95 $174.95
All Brass Prop Knocker - Fits 2" Shafts 1-1/2 - 6 threads CNC Machined from All Brass with perfection. Threads onto the shaft, excellent for splined...
ACME Harmonic Prop Puller For 1-1/2 INCH Shafts 5010
ACME Harmonic Prop Puller For 1-1/2 INCH Shafts 5010 ACME Harmonic Prop Puller For 1-1/2 INCH Shafts 5010
8%
$132.00 $142.90
ACME Harmonic Prop Puller For 1-1/2 INCH Shafts 5010
$132.00 $142.90
By ACME Marine for 1-1/2" Shafts. Awesome device that works by simply removing your prop nut, screw the harmonic puller onto the shaft and gently...
Acme Harmonic Prop Puller For 2 Inch Shafts 5012
Acme Harmonic Prop Puller For <b>2 Inch</b> Shafts 5012 Acme Harmonic Prop Puller For <b>2 Inch</b> Shafts 5012
9%
$174.00 $191.00
Acme Harmonic Prop Puller For 2 Inch Shafts 5012
$174.00 $191.00
By ACME Marine for 2" Shafts. Awesome device that works by simply removing your prop nut, screw the harmonic puller onto the shaft and gently...
The ACME Harmonic Prop Kit - The Weekend Saver Full Replacement Kit For 1 Or 1-1/8 Inch Shafts ACME-4997
ACME HARMONIC PROP KIT - THE WEEKEND SAVER FULL REPLACEMENT KIT FOR 1 OR 1-1/8 INCH SHAFTS ACME HARMONIC PROP KIT - THE WEEKEND SAVER FULL REPLACEMENT KIT FOR 1 OR 1-1/8 INCH SHAFTS
11%
$178.05 $199.99
The ACME Harmonic Prop Kit - The Weekend Saver Full Replacement Kit For 1 Or 1-1/8 Inch Shafts ACME-4997
$178.05 $199.99
The 1-1/8" shaft size kit includes a carry case that fits props up to 15.5" in diameter. Everything you need to save a weekend on...
Rudder Box Assembly Ski Boat - RBST1.00-SLOT-BRG
Rudder Box Assembly Ski Boat - RBST1.00-SLOT-BRG Rudder Box Assembly Ski Boat - RBST1.00-SLOT-BRG
21%
$506.52 $638.45
Rudder Box Assembly Ski Boat - RBST1.00-SLOT-BRG
$506.52 $638.45
Rudder BOX Assembly RPTNSLOTRBSTASSY RBST1.00-SLOT-BRG 4" X 4" Plate with 3/8" holes; slotted for easier installation! If you only need a Sealing Kit - CLICK HERE...
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...
Seal Kit Lower Unit Lower Unit Seal Kit for Johnson Evinrude OEM 18-2684
Seal Kit Lower Unit Lower Unit Seal Kit for Johnson Evinrude OEM 18-2684
7%
$31.00 $33.49
Seal Kit Lower Unit Lower Unit Seal Kit for Johnson Evinrude OEM 18-2684
$31.00 $33.49
Lower unit seal kit for Johnson Evinrude Sierra Kit Replaces Mallory 9-74105  
Prop Knocker All Brass Harmonic Prop Puller - For 2-1/4" And 2-1/2" Shafts KNOCKER214250
Prop Knocker All Brass Harmonic Prop Puller - For 1-3/4" Shafts KNOCKER214250 Prop Knocker All Brass Harmonic Prop Puller - For 1-3/4" Shafts KNOCKER214250
5%
$195.95 $205.95
Prop Knocker All Brass Harmonic Prop Puller - For 2-1/4" And 2-1/2" Shafts KNOCKER214250
$195.95 $205.95
All Brass Prop Knocker - Fits 2-1/4" And 2-1/2" Shafts 1-3/4 - 5 threads CNC Machined from All Brass with perfection. Threads onto the shaft, excellent...
ACME Harmonic Prop Puller For 1 Or 1-1/8 Inch Shafts 5005
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
ACME Harmonic Prop Puller For 1 Or 1-1/8 Inch Shafts 5005
$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 Harmonic Prop Puller For 1-3/8 Inch Shafts 5019
ACME Harmonic Prop Puller For 1-3/8 Inch Shafts 5019 ACME Harmonic Prop Puller For 1-3/8 Inch Shafts 5019
7%
$135.00 $145.00
ACME Harmonic Prop Puller For 1-3/8 Inch Shafts 5019
$135.00 $145.00
By ACME Marine for 1-3/8" Shafts. 1" - 8 UNC Awesome device that works by simply removing your prop nut, screw the harmonic puller onto the...
OJ Johnson Prop Knocker - For 1" - 1 - 1/8" And 1-1/4" Shafts For Tige - Malibu The Original Prop Knocker
OJ JOHNSON PROP KNOCKER FOR 1 AND 1-1/8 INCH SHAFTS OJ JOHNSON PROP KNOCKER FOR 1 AND 1-1/8 INCH SHAFTS
11%
$31.00 $35.00
OJ Johnson Prop Knocker - For 1" - 1 - 1/8" And 1-1/4" Shafts For Tige - Malibu The Original Prop Knocker
$31.00 $35.00
The Original "OJ® Prop Knocker" Prop Puller Fits SPLINED SHAFTS The Harmonic Puller (Prop Knocker) By Johnson Propeller! Excellent for Splined Shafts! Threads onto the...
Rudder Assembly N & J Seal Box And Port RPTN Blade- RPTNNJ-P
RUDDER ASSEMBLY N & J SEAL BOX AND PORT RPTN BLADE- RPTNNJ-P
29%
$1,024.05 $1,439.95
Rudder Assembly N & J Seal Box And Port RPTN Blade- RPTNNJ-P
$1,024.05 $1,439.95
For Malibu approximately 1988 through 1994 Marine Hardware Rudder Assembly 3-1/4" x 4" rectangular rudder port with a 2" bore 5" long tiller arm Keyed for port...
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 1-1/8" 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! The complete Flex Gland comes WITH one of these tools. This one would be an extra tool in case you need...
Strut - Sanger 16 Degree 1-1/8 Inch Shaft 6 Hole Pattern - Includes Strut Bearings MH-710-1.12
Strut - Sanger 16 Degree 1 Inch Shaft 6 Hole Pattern - Includes Strut Bearings MH-710-1.00 Strut - Sanger 16 Degree 1 Inch Shaft 6 Hole Pattern - Includes Strut Bearings MH-710-1.00
14%
$545.00 $636.00
Strut - Sanger 16 Degree 1-1/8 Inch Shaft 6 Hole Pattern - Includes Strut Bearings MH-710-1.12
$545.00 $636.00
Fits boats with 1-1/8" driveshaft and 6 bolt mounting pattern16 degree - Sanger Has 6 Mounting Holes and includes brass shelled rubber strut bushings! All...
Strut - Moomba-Supra Vee Drive 15 Degree 1-1/8" Shaft Size Includes Strut Bearings MH701-1.12
Strut - Moomba-Supra Vee Drive 15 Degree 1-1/8" Shaft Size Includes Strut Bearings MH701-1.12
16%
$534.00 $639.00
Strut - Moomba-Supra Vee Drive 15 Degree 1-1/8" Shaft Size Includes Strut Bearings MH701-1.12
$534.00 $639.00
15 Degree with a 6 bolt mounting pattern - Fits 1-1/8" Shafts Has 6 Mounting Holes and includes brass shelled rubber strut bushings! Fits most...
1" X 5" A.R.E. Inboard Shaft System and Coupler Dual Taper WS2000A
1" X 5" A.R.E. Inboard Shaft System and Coupler 1" X 5" A.R.E. Inboard Shaft System and Coupler
27%
$514.00 $707.00
1" X 5" A.R.E. Inboard Shaft System and Coupler Dual Taper WS2000A
$514.00 $707.00
Dual Taper, Pricing Good For Shafts Up To 5' Fits most boats with a 1:1 transmission Borg Warner Style (72c) and big block engines 454-...
Items 49 to 72 of 188 total