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.

DRIVETRAIN

Boat Drivetrain

My Inboard Marine is your go-to supply for all your boat drivetrain needs. We carry a variety of inboard mufflers, inboard transmissions and parts ideal for fitting a diverse option of boats, including Mastercraft Mufflers, Borg Warner and Pleasurecraft boat transmission parts. Allow yourself and others to enjoy the sound of the waves as opposed to a noisy boat. Our huge inventory of boat mufflers gives you several choices to decide on. We carry only high-quality products while offering affordable pricing.

We carry interchangeable mufflers, muffler kits, outlet exhausts, and flapper exhaust protector valves as well. We ship products inside and outside the United States. Grab your boat drivetrain products from My Inboard Marine today and experience the difference with our boating solutions.

More Drivetrain Items Coming Soon!

Verna Ski Inline Muffler - 3 Inch Centek Industries 1000216
16%
$294.00 $350.72
Fiberglass wet exhaust muffler is designed to reduce the noise of gasoline inboard engines in ski boats. Centek Verna Ski muffler Fiberglass construction 45 degree...
Forward Clutch Plate Supercedes 5C-A66A OEM VD-3000166001
7%
$21.99 $23.67
Forward Clutch Plate Velvet Drive VD-3000166001 Bronze Forward Clutch Plate fits Velvet Drive 70, 71, 72, and 73 series 0.061 inch width approximate and 5.250 O/D...
Needle Beraring OEM VD-4840D
10%
$20.88 $23.18
Needle Bearing Bearing Replaces Crusader R067003 Replaces Pleasurecraft Marine R067003
Thrust Washer OEM 4806B
9%
$32.63 $35.68
$32.63 $35.68
Thrust Washer Bushing Style Case  
Bronze Reverse Clutch Plate .115 Inch OEM VD-72-A66B
7%
$48.25 $52.08
Reverse Friction Clutch Plate Bronze Reverse Clutch Plate 0.115 inch width approximate and 7.500 inch O/D Fits Velvet Drive 70, 71, 72 and 73 series...
Snap Lock Ring Green For Velvet Drive 050-.054 10-18 OEM VD-4768
18%
$14.00 $16.99
Snap Lock Ring Green For Velvet Drive 050-.054 10-18 OEM VD-4768
Snap Lock Ring Orange For Velvet Drive .074-.078 OEM VD-4768A
15%
$11.00 $12.95
Snap Lock Ring Orange For Velvet Drive .074-.078 OEM VD-4768A
Transmission Kit Ford 80I 1:1 Ratio Pleasurecraft Marine RF157016-26
14%
$3,735.00 $4,364.58
Transmission update kit to replace PCM 40I model 1:1 ratio with 80I model on FORD engines and includes all necessary parts for the conversion. Conversion kit...
Tube For Velvet Drive Dipstick Velvet Drive VD-2001034003
20%
$46.11 $57.38
Tube For Velvet Drive Dipstick Velvet Drive VD-2001034003 Tube For Oil Dipstick Replaces Velvet Drive 1004-034002
Dipstick Threaded Design Direct Drive Velvet Drive 1018559001
24%
$19.00 $24.95
Dipstick for late model 72C direct drive transmissions with the threaded in design. Velvet Drive Transmission threaded dipstick with o-ring Used on late design model...
Black Exhaust Thru Hull with Flapper - 3 Inch Centek 1200299 Black Exhaust Thru Hull with Flapper - 3 Inch Centek 1200299
6%
$155.22 $165.22
Centek Thru Hulls are constructed from compression-molded fiberglass and will not corrode like conventional fitting made from bronze or stainless steel. A weighted rubber flap...
Clamp Upper Part B For Oil 5" Oil Cooler OEM 88-5024
24%
$19.00 $24.95
UPPER CLAMP FOR TRANSMISSION OIL COOLER TRANSMISSION FITS 5" STANDARD COOLER INDMAR OEM This is PART A the upper half of a transmisson cooler bracket. CLICK...
Clamp Lower Part A For Oil 5" Oil Cooler OEM 88-5023
24%
$19.00 $24.95
LOWER CLAMP FOR TRANSMISSION OIL COOLER TRANSMISSION FITS 5" STANDARD COOLER INDMAR OEM This is PART A the upper half of a transmisson cooler bracket....
Neoprene Exhaust Tip Gasket Corsa® Performance 10197
17%
$12.00 $14.48
The gasket is made to seal between Corsa 4 in. exhaust tip & the boat's transom. Thru hull exhaust tip gasket For 4 inch exhaust...
Seal Oil Seal Output For 5000 V-Drive Velvet Drive Brand OEM VD-2000044004 Seal Oil Seal Output For 5000 V-Drive Velvet Drive Brand OEM VD-2000044004
7%
$65.00 $69.67
Output Seal Velvet Drive Oil Seal For Velvet Drive 5000 series V-drives Need the INPUT Seal? Order the Input seal HERE
Dipstick Screw In Hurth 630A OEM 90-3027
13%
$95.00 $108.99
This dipstick fits most Hurth 630-A Transmissions with screw-in dipsticks. ONLY 3 LEFT - THEN WILL BECOME NLA - If you can add one to your...
Muffler Mastercraft - 3.0" Offset Inlet/Outlet 17" OAL OEM 252019
30%
Sold Out
MUFFLER MASTERCRAFT STRAIGHT 17" Overall Length. 3.0" offset  inlet/outlet - Note: 3" (3 Inch Inlet/Outlet) 17" OAL  OEM 252019 Manufactured by Ultra Marine. Easy to...
Oil Cooler Transmission Seakamp 12 Inch X 1-1/4 Inch Oil Cooler Seakamp SK-212134
4%
$179.00 $186.32
OIL COOLER TRANSMISSION SEAKAMP 212134 2 in. diameter standard oil cooler accepts 1 1/4 in. water hoses and 3/8 in. NPTF oil connections. Seakamp universal...
Mastercraft Muffler Silent Master for LY6 Part# 252001 - Outside
32%
$435.00 $635.26
Mastercraft Muffler Silent Master for LY6 Part# 252001 - Outside 10 ° Angled 3-1/2" Offset Inlet with 3-1/2" Outlet These are the mates to the UM-252000 Mufflers...
Mastercraft Muffler Silent Master for LY6 - INSIDE Part# 252000 - Inside
28%
Sold Out
Mastercraft Muffler Silent Master for LY6 - INSIDE Part# 252000 - Inside 10 ° Angled 3-1/2" Offset Inlet with 3-1/2" Outlet  These are the mates to the UM-252001...
Dipstick Screw In Hurth 450 - 650 - ZF45 And 63 OEM 90-3064
19%
$83.72 $103.95
This dipstick fits Hurth 450 and 630, ZF 45 and 63 Transmissions with screw-in dipsticks For Hurth 630v and ZF 63 IV transmission 45C, 63C...
OIL COOLER TRANSMISSION SEAKAMP 5 INCH X 1-1/4 INCH OIL COOLER
4%
$145.00 $151.00
OIL COOLER TRANSMISSION SEAKAMP 5 INCH X 1-1/4 INCH OIL COOLER Seakamp universal cooler fits many engine oil or transmission fluid cooling applications 5 in....
OIL PUMP FOR BORG WARNER TRANSMISSIONS 71C - 72C BORG WATER BRAND # VD-3000508001 Oil Pump For Borg Warner Transmissions 71C - 72C Borg Warner Brand VD-3000508001
15%
$774.05 $912.81
OIL PUMP FOR BORG WARNER TRANSMISSIONS 71C - 72C VD-3000508001 OEM Velvet Drive Part NEW Style - Better protection against blowing the seal. Velvet Drive...
Muffler Interchangeable Angled 3-1/2 Inch 60° O.D. Inlet With 3-1/2 Inch O.D. Straight Outlet 43 Inches Long OEM UM-288-3535
27%
$353.00 $481.68
Ultra Marine - Muffler Aftermarket Interchangeable UM-288-3535 Angled 60 Degree 3-1/2" Inlet With 3-1/2" Straight Outlet 43" Tip to Tip 3-1/2" Inlet - 3-1/2" Outlet Used...
2014 Muffler Mastercraft - 5.7 Standard X2 Starboard Side 250044BS
17%
$505.65 $605.69
Mastercraft Muffler 2014 5.7L Standard Starboard Side Muffler X2 Part# 250044BS Click HERE for Full Kit Part# 250044B includes both mufflers. Manufactured by Ultra Marine. Easy...
2014 Muffler Mastercraft - 5.7 Standard X2 Port Side 250044BP
17%
$505.65 $605.69
Mastercraft Muffler 2014 Prostar 5.7L Standard X2 Port Side Muffler X2 Part# 250044BP Full Kit Part# 250044B includes both mufflers. Manufactured by Ultra Marine. Easy to install! Ultra...
2011-2012 Muffler Mastercraft - 3.5" Inlet/Outlet Port 6.0/6.2 Liter OEM 252082
32%
$620.83 $907.97
MUFFLER MASTERCRAFT 2011 - 2012 3.5" inlet/outlet Port 6.0/6.2 Liter OEM 252082 MUFFLER - PORT 6.0/6.2 Manufactured by Ultra Marine. Easy to install! Ultra Marine...
2011-2012 MUFFLER MASTERCRAFT - 3.5" inlet/outlet -Starboard 5.7 L ILMOR Engine OEM 252071
17%
$478.15 $573.20
MUFFLER MASTERCRAFT 2011 - 2012 3.5" inlet/outlet Starboard 5.7 L ILMOR Engine OEM 252071 The body is approx. 6-1/8” in diameter and is 9-1/4” long...
Heat Exchanger 6.0L OEM PCM RA147047
8%
$4,350.00 $4,718.76
High Performance PCM Brand New OEM Transmission 80S HO 30-16-M01 - Set up for a V-Drive - Manual Shift! 1:1 Ratio CLICK HERE For Engine...
Transmission Dipstick 1.23:1 | Pleasurecraft Marine R041059A
16%
$43.75 $52.37
Threaded In style dipstick for PCM 40A transmission models. Thread In style dipstick with O-Ring Used on 40A 1.23:1 Ration Transmission Model This is 6"...
Transmission Cooler Hose 1/2 x 51.5" Length RA045007H
11%
$58.95 $66.06
Replacement Hose For Transmission Oil Cooler - RA045007N Hose 1/2 (.406) X 42" OAL Crusader .406 X 36 in. Oil Hose Assembly Original Crusader Replaces...
Transmission Cooler Hose 45 Inches OEM PCM RA045120
13%
$75.04 $86.03
OEM Crusader 45 inch oil hose runs from oil filter adapter to remote oil filter mount on specific engine models 45 Inches Long O-Ring fitting...
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