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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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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
$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 SYSSOCKET125
Retaining Nut Socket 1-1/4" for the A.R.E. Drive Shaft Systems SYSSOCKET125
$33.00 $36.99
Retaining Nut Socket 1-1/4" for the A.R.E. Drive Shaft Systems SYSSOCKET125
$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....
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
$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...
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
$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
$1,224.05 $1,639.95
Rudder Assembly N & J Seal Box And Port RPTN Blade- RPTNNJ-P
$1,224.05 $1,639.95
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...
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
$577.00 $669.00
Strut - Moomba-Supra Vee Drive 15 Degree 1-1/8" Shaft Size Includes Strut Bearings MH701-1.12
$577.00 $669.00
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...
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
$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  
Glide Strut Bearing Set | Bushing 1-1/8" Shaft Diameter | 1-1/2 Outside Diameter | 3" Length Each Bearing OEM 1.125X1.500X3.000
Glide Strut Bearing | Bushing 1-1/4" Shaft Diameter OEM 1.250X1.500X2.000 Glide Strut Bearing | Bushing 1-1/4" Shaft Diameter OEM 1.250X1.500X2.000
$47.00 $60.00
Glide Strut Bearing Set | Bushing 1-1/8" Shaft Diameter | 1-1/2 Outside Diameter | 3" Length Each Bearing OEM 1.125X1.500X3.000
$47.00 $60.00
GLIDE® STRUT BEARING | BUSHING SET 1-1/8" - 1-1/8 Inch Shafts Shaft Diameter: 1-1/8" Strut Inside Diameter: 1-1/2" Bearing Length: 3.00" Each Set: Comes with...
Glide Strut Bearing Set | Bushing 1" Shaft Diameter | 1-1/4 Outside Diameter | 2" Length Each Bearing OEM 1.000X1.250X2.000
Glide Strut Bearing | Bushing 1-1/4" Shaft Diameter OEM 1.250X1.500X2.000 Glide Strut Bearing | Bushing 1-1/4" Shaft Diameter OEM 1.250X1.500X2.000
$45.00 $57.00
Glide Strut Bearing Set | Bushing 1" Shaft Diameter | 1-1/4 Outside Diameter | 2" Length Each Bearing OEM 1.000X1.250X2.000
$45.00 $57.00
GLIDE® STRUT BEARING | BUSHING SET 1" - 1 Inch Shafts Shaft Size-Diameter: 1.00" Strut Inside Diameter: 1-1/4" Bearing Length: 2.00" Each Set: Comes with...
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
$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...
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
$16.00 $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
$594.00 $656.00
Strut - Sanger 16 Degree 1-1/8 Inch Shaft 6 Hole Pattern - Includes Strut Bearings MH-710-1.12
$594.00 $656.00
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...
Shaft Log 15-16 Degree Aluminum OEM Marine Hardware - SHLG16150A
Shaft Log 15-16 Degree Aluminum OEM Marine Hardware - SHLG16150A
$116.05 $128.04
Shaft Log 15-16 Degree Aluminum OEM Marine Hardware - SHLG16150A
$116.05 $128.04
15-16 Degree Shaft Log By Marine Hardware® Note: When the shaft log is connected to the stuffing box with a rubber hose, the angle can...
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
$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-...
Bolt Flywheel Damper GM Small And Big Block Engine OEM R009092
Bolt Flywheel Damper GM Small And Big Block Engine OEM R009092
$6.24 $13.73
Bolt Flywheel Damper GM Small And Big Block Engine OEM R009092
$6.24 $13.73
You can use your old bolts. These bolts fit standard thread flywheels  Grade 5 -  3/8 - 1 X 1"  Be sure to make sure...
Strut Bearings Set OJ Marine Vesconite 1" I.D. X 1-1/2" O.D. OEM 2025
Strut Bearings Set Glide Marine Vesconite Hilube 1" X 1-1/2"
$75.00 $89.00
Strut Bearings Set OJ Marine Vesconite 1" I.D. X 1-1/2" O.D. OEM 2025
$75.00 $89.00
VESCONITE STRUT BEARING SET 1" I.D. x 1-1/2 O.D. Each of the bearings are 2" in length and are sold by the pair. OJ-2025 Vesconite...
1-1/8" X 4" A.R.E. Inboard Drive Shaft System Dual Taper WS2050
1-1/8" X 4" A.R.E. Inboard Drive Shaft System Dual Taper 1-1/8" X 4" A.R.E Inboard Shaft System and Coupler
$585.00 $699.00
1-1/8" X 4" A.R.E. Inboard Drive Shaft System Dual Taper WS2050
$585.00 $699.00
Dual Taper, Pricing Good For Shafts Up To 5' Normally fits inboard boats that have a 1:1 transmission Borg Warner Style and a small block...
1-1/8" PSS Shaft Seal Kit 1-1/8" Diameter Drive Shafts Comes With Install Kit
1-1/8" PSS Shaft Seal Kit 1-1/8" Diameter Drive Shafts Comes With Install Kit 1-1/8" PSS Shaft Seal Kit 1-1/8" Diameter Drive Shafts Comes With Install Kit
$472.00 $479.00
1-1/8" PSS Shaft Seal Kit 1-1/8" Diameter Drive Shafts Comes With Install Kit
$472.00 $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...
1-1/4" Custom Inboard Prop Shaft System With Borg Warner Style 5" Coupler Dual Taper 58.75 Inch Assembled Length
1-1/4" Custom Inboard Prop Shaft System With Borg Warner Style 5" Coupler Dual Taper 58.75 Inch Assembled Length 1-1/4" Custom Inboard Prop Shaft System With Borg Warner Style 5" Coupler Dual Taper 58.75 Inch Assembled Length
$659.00 $910.22
1-1/4" Custom Inboard Prop Shaft System With Borg Warner Style 5" Coupler Dual Taper 58.75 Inch Assembled Length
$659.00 $910.22
Marine Hardware 1-1/4" Custom Prop Shaft & Borg Warner Style Coupler 5 Inch Diameter Works for shaft TIP to TIP Length of 58-3/4 inches. 1-1/4"...
Ring Nut | ZF Industries 637513037
Ring Nut | ZF Industries 637513037 Ring Nut | ZF Industries 637513037
$29.50 $32.95
Ring Nut | ZF Industries 637513037
$29.50 $32.95
Ring Nut OEM  Replaces Hurth 0637513037, 489305
Packing Nut Wrench For Rudder | Shaft Stuffing Box 2-1/4" OEM SPW-415
Packing Nut Wrench For Rudder | Shaft Stuffing Box 2-1/4" OEM SPW-415 Packing Nut Wrench For Rudder | Shaft Stuffing Box 2-1/4" OEM SPW-415
$38.95 $42.95
Packing Nut Wrench For Rudder | Shaft Stuffing Box 2-1/4" OEM SPW-415
$38.95 $42.95
2-1/4" Rudder & Shaft Stuffing Box Wrench for Inboards, made out of 3/8" thick Billet Aluminum | Black Anodized This is a Stub Wrench for...
Glide® Replacement Seal Kit 1-1/8" | OEM GMS-TL-1.125
Glide® Replacement Seal Kit 1" | One Inch OEM GMS-TL-1.000 Glide® Replacement Seal Kit 1-1/4" | OEM GMS-TL-1.250
$35.00 $49.55
Glide® Replacement Seal Kit 1-1/8" | OEM GMS-TL-1.125
$35.00 $49.55
Glide® Replacement Seal Kit 1-1/8" Our replacement seal kits are compatible with any Glide Housing with the (6) screw cap. Glide Seal Kit Includes: Seal...
Rudder Assembly Mastercraft 1987 - 2015 - Flat Tiller Arm Keyed Port Or Starboard
Rudder Assembly Mastercraft 1987 - 2015 - Flat Tiller Arm Keyed Port Or Starboard Rudder Assembly Mastercraft 1987 - 2015 - Flat Tiller Arm Keyed Port Or Starboard
$1,135.00 $1,448.99
Rudder Assembly Mastercraft 1987 - 2015 - Flat Tiller Arm Keyed Port Or Starboard
$1,135.00 $1,448.99
Rudder Assembly - Rudder Assembly Mastercraft Keyed  - Flat Tiller Arm Keyed Keyed port & starboard with two key cuts on each rudder. For Mastercraft 1987...
Rudder Assembly RPTN Slotted Port or Starboard Drop TA-RPTNSB-P-DROP
REPLACEMENT RUDDER ASSEMBLY FOR TOURNAMENT SKI BOATS
$1,089.48 $1,238.05
Rudder Assembly RPTN Slotted Port or Starboard Drop TA-RPTNSB-P-DROP
$1,089.48 $1,238.05
REPLACEMENT RUDDER ASSEMBLY FOR TOURNAMENT SKI BOATS Marine Hardware rudders are cast and machined in the USA The tiller arm is double keyed for left...
Castle Nut Brass Low Profile For 1" and 1-1/8" Inboard Shafts Slotted Castle Nut PNUTFULL-1.000-BCN
Castle Nut Brass For 1" and 1-1/8" Inboard Shafts Slotted Castle Nut PNUTFULL-1.000-BCN
$29.95 $45.80
Castle Nut Brass Low Profile For 1" and 1-1/8" Inboard Shafts Slotted Castle Nut PNUTFULL-1.000-BCN
$29.95 $45.80
Inboard Castle Nut - Fits 1" and 1-1/8" shafts. 3/4-10 thread - Low Profile Machined grooves to accept all cotter pin sizes. CNC Class 3...
Rudder Algonac Cast 1000C803
Rudder Algonac Cast 1000C803 Rudder Algonac Cast 1000C803
$1,145.00 $1,490.09
Rudder Algonac Cast 1000C803
$1,145.00 $1,490.09
REPLACEMENT RUDDER - POST AND RUDDER ONLY - KEYED FOR STARBOARD We can add an additional key for 99.00 USD Please call for additional keying....
Strut Bushing Set 1 Inch I.D. X 1-1/2 Inch O.D. Brass Bearings SB1.0X1.5
Strut Bushing Set 1 Inch I.D. X 1-1/2 Inch O.D. Brass Bearings SB1.0X1.5 Strut Bushing Set 1 Inch I.D. X 1-1/2 Inch O.D. Brass Bearings SB1.0X1.5
$145.00 $169.95
Strut Bushing Set 1 Inch I.D. X 1-1/2 Inch O.D. Brass Bearings SB1.0X1.5
$145.00 $169.95
STRUT BEARING SET 1" I.D. x 1-1/2" O.D. Fits some of the late model 1970's & 1980's Mastercrafts with the 1:1 Velvet Drive transmission. These...
Strut - 16 Degree Centruion 1998 & Up - 1 Inch Shaft 6 Hole Bolt Pattern STSL-16 Includes Strut Bearings MHSTRUTSTSL16-10
Strut - 16 Degree Centruion 1998 & Up - 1 Inch Shaft 6 Hole Bolt Pattern STSL-16 Includes Strut Bearings MHSTRUTSTSL16-10
$576.54 $798.69
Strut - 16 Degree Centruion 1998 & Up - 1 Inch Shaft 6 Hole Bolt Pattern STSL-16 Includes Strut Bearings MHSTRUTSTSL16-10
$576.54 $798.69
Fits boats with 1" (ONE INCH) driveshaft and 6 bolt mounting pattern 16 degree - 1" Shaft Has 6 Mounting Holes and includes brass shelled...
1-1/8" X 5" Inboard Shaft System With Inverted Hurth Steel Coupler Dual Taper 50.00" Assembled Length
1-1/8" X 5" Inboard Shaft System With Inverted Hurth Steel Coupler Dual Taper 55.750 Assembled Length 1-1/8" X 5" Inboard Shaft System With Inverted Hurth Steel Coupler Dual Taper 55.750 Assembled Length
$610.00 $828.77
1-1/8" X 5" Inboard Shaft System With Inverted Hurth Steel Coupler Dual Taper 50.00" Assembled Length
$610.00 $828.77
1-1/8" X 5" A.R.E Inboard Shaft System With Inverted 5" Face Diameter Hurth Steel Coupler Dual Taper Shaft length is 52.250 Long Assembled Length with...
Strut Bushing Set 1-1/8 Inch I.D. X 1-3/8 Inch O.D. Brass Bearings OEM Marine Hardware
Strut Bushing Set 1-1/8 Inch I.D. X 1-3/8 Inch O.D. Brass Bearings OEM Marine Hardware
$159.05 $199.00
Strut Bushing Set 1-1/8 Inch I.D. X 1-3/8 Inch O.D. Brass Bearings OEM Marine Hardware
$159.05 $199.00
1-1/8" I.D. x 1-3/8" O.D. MARINE HARDWARE OEM STRUT BEARING SET Fits most Malibu 1993 and up with 1-1/8" drive shafts, direct drive and the...
Glide Strut Bearing Set | Bushing 1-1/8" Shaft Diameter | 1-1/2 Outside Diameter | 2" Length Each Bearing OEM 1.125X1.500X2.000
Glide Strut Bearing | Bushing 1-1/4" Shaft Diameter OEM 1.250X1.500X2.000 Glide Strut Bearing | Bushing 1-1/4" Shaft Diameter OEM 1.250X1.500X2.000
$45.00 $57.00
Glide Strut Bearing Set | Bushing 1-1/8" Shaft Diameter | 1-1/2 Outside Diameter | 2" Length Each Bearing OEM 1.125X1.500X2.000
$45.00 $57.00
GLIDE® STRUT BEARING | BUSHING SET 1-1/8" - 1-1/8 Inch Shafts Shaft Diameter: 1-1/8" Strut Inside Diameter: 1-1/2" Bearing Length: 2.00" Each Set: Comes with...
Glide Strut Bearing Set | Bushing 1-1/8" Shaft Diameter | 1-3/8 Outside Diameter | 2" Length Each Bearing OEM 1.125X1.375X2.000
Glide Strut Bearing | Bushing 1-1/4" Shaft Diameter OEM 1.250X1.500X2.000 Glide Strut Bearing | Bushing 1-1/4" Shaft Diameter OEM 1.250X1.500X2.000
$45.00 $57.00
Glide Strut Bearing Set | Bushing 1-1/8" Shaft Diameter | 1-3/8 Outside Diameter | 2" Length Each Bearing OEM 1.125X1.375X2.000
$45.00 $57.00
GLIDE® STRUT BEARING | BUSHING SET 1-1/8" - 1-1/8 Inch Shafts Shaft Size-Diameter: 1-1/8" Strut Inside Diameter: 1-3/8" Bearing Length: 2.00" Each Set: Comes with...
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