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!

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
20%
$3,485.30 $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....
Transmission Cooler Hose 45 Inches OEM 81-1145
28%
$35.00 $48.32
Replacement Hose For Transmission Oil Cooler - OEM Indmar 811145 45 inch long transmission hose with screw on fittings.  
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
23%
$679.00 $886.22
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 Supra Moomba Skiers Choice 0437 - 3.5" In/Out Inline Approx 15" Overall Length OEM 101422
11%
$398.32 $450.07
MUFFLER SUPRA MOOMBA SKIERS CHOICE 0437 3.5" inlet and 3.5" outlet inline Approx 15" overall length OEM 101422 Shipping Dimensions: 8x8x17 Manufactured by Ultra Marine....
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...
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