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!

Muffler Mastercraft - 3.5" Inlet/Outlet 2008 LY6 280 OAL Approx 12.25 OEM 252003
$550.00 $784.33
MUFFLER MASTERCRAFT 2008 ONLY AND ONLY FOR THE LY6 3.5" Inlet & Outlet OEM 252003 Fits both sides - Starboard & Port MUFFLER - 3.5" STRAIGHT...
Transmission Kit Ford 80I 1:1 Ratio Pleasurecraft Marine RF157016-26
$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...
Pump Drive Key Woodruff Key 71C 72C
$2.00 $4.99
Pump Drive Key Woodruff Key 71C 72C Woodruff key 71C 72C Pump Drive Key Replaces Crusader 1012721 Replaces Westerbeke 22392
Tube For Velvet Drive Dipstick Velvet Drive VD-2001034003
$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
$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
$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
$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
$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
$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
$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
$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...
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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
$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
$395.00 $635.26
Mastercraft Muffler Silent Master for LY6 Part# 252001 - Outside - STARBOARD 10 ° Angled 3-1/2" Offset Inlet with 3-1/2" Outlet These are the mates to the...
Mastercraft Muffler Silent Master for LY6 - INSIDE Part# 252000 - Inside
$455.05 $635.26
Mastercraft Muffler Silent Master for LY6 - INSIDE Part# 252000 - Inside - PORT 10 ° Angled 3-1/2" Offset Inlet with 3-1/2" Outlet  These are the mates to...
Gasket - Seal Kit Transmission 71C - 72C Velvet Drive Brand OEM PCM RK173018 Gasket - Seal Kit Transmission 71C - 72C Velvet Drive Brand OEM PCM RK173018
$153.73 $156.99
PCM kit includes all gaskets & seals needs to reseal Velvet Drive 71C & 72C marine transmissions. Gasket & Seal Kit - All 71C and...
OIL COOLER TRANSMISSION SEAKAMP 5 INCH X 1-1/4 INCH OIL COOLER
$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
$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
$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
$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...
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