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!

Muffler Supra Moomba Skiers Choice 0437 - 3.5" In/Out Inline Approx 15" Overall Length OEM 101422
14%
$374.00 $435.75
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 Supra Moomba Skiers Choice 3.5" Inlet W/60° - 3.5" Outlet OEM 104425
13%
$528.22 $606.57
MUFFLER SUPRA MOOMBA SKIERS CHOICE + 3.5" inlet w/60° Angle 3.5" outlet Overall Length Approximately 26" OEM 104425 Shipping Dimensions: 30x14x11 Manufactured by Ultra Marine....
Muffler Supra Moomba Skiers Choice 3.5" Inlet W/60° Angle  - 3" Outlet OEM 100700
16%
$455.20 $542.69
MUFFLER SUPRA MOOMBA SKIERS CHOICE 3.5" inlet w/60° angle 3" Outlet Shipping Dimensions: 30x14x11 OEM 100700 Manufactured by Ultra Marine. Easy to install! Ultra Marine...
Muffler Supra-Moomba 104378 Interchangeable Angled 3-1/2 Inch 60° O.D. Inlet 3 Inch O.D. Straight Outlet 34 Inches OEM 4207 Muffler Supra-Moomba 104378 Interchangeable Angled 3-1/2 Inch 60° O.D. Inlet 3 Inch O.D. Straight Outlet 34 Inches OEM 4207
45%
$345.00 $621.69
Ultra Marine - Muffler Supra-Moomba 104378 Muffler Number: 104378 Supra-Moomba Interchangeable - PORT or STARBOARD UM-4207 Angled 60 Degree 3-1/2" Inlet With 3" Straight Outlet 33"...
Ultra Marine - Muffler Supra-Moomba BOOMERANG! Part Number: 100270
23%
$401.03 $521.93
Ultra Marine - Muffler Supra-Moomba BOOMERANG! Part Number: 100270 Muffler Number: 100270 Supra-Moomba Boomerang UM-100270 Angled 60 Degree 3" Inlet With 3" Straight Outlet 3" in...
MUFFLER TIGE' - 3" inlet w/90°angle - 3.5" outlet - Port - 6" body length OEM - UM-TB4178-P
14%
$452.86 $525.31
MUFFLER TIGE' - PORT - LEFT SIDE 3" inlet w/90°angle 3.5" outlet Port 6" body length OEM TB4178-P Shipping Dimensions: 30x14x11 Manufactured by Ultra Marine....
MUFFLER TIGE' - 3" inlet w/90° angle - 3.5" outlet - Starboard - 5.5" body length OEM - UM-TB4178-S
14%
$452.86 $525.31
MUFFLER TIGE' - STARBOARD SIDE 3" inlet w/90° angle 3.5" outlet Starboard 5.5" body length OEM - TB4178-S Shipping Dimensions: 30x14x11 Manufactured by Ultra Marine....
MUFFLER TIGE' - 3" inlet w/extended 76° angle - 3.5" outlet - 27" body length OEM - 4087-T
38%
$419.00 $680.83
MUFFLER TIGE 3" inlet w/extended 76° angle 3.5" outlet 27" body length OEM - 4087-T Shipping Dimensions: 12x12x48 Manufactured by Ultra Marine. Easy to install!...
Muffler Tige' - 3" Inlet W/Extended 90° Angle - 3.5" Outlet - 15" Body Length OEM - TB4087
16%
$477.05 $569.09
MUFFLER TIGE' 3" inlet w/extended 90° angle 3.5" outlet 15" body length OEM TB4087 Shipping Dimensions: 12x13x38 Manufactured by Ultra Marine. Easy to install! Ultra...
Muffler Tige' - 3" Inlet W/Extended 90° Angle - 3.5" Outlet OEM - UM-4178-T Muffler Tige' - 3" Inlet W/Extended 90° Angle - 3.5" Outlet OEM - UM-4178-T
24%
$402.86 $531.80
MUFFLER TIGE' 3" inlet w/extended 90° angle 3.5" outlet OEM - UM-4178-T Shipping Dimensions: 12x13x37 Manufactured by Ultra Marine. Easy to install! Ultra Marine Fine...
Muffler Tige' - D4028 - Silent Rider V-Drive Dual 4" Inlets  - Dual 3.5" Outlets OEM - D4028
20%
$1,279.00 $1,599.00
MUFFLER TIGE' CUSTOM Dual 4" Inside Diameter Inlets - Dual 3.5" Inside Diameter Outlets The outlets are extended approx. 13" out from the main cylinder....
Needle Bearing Velvet Drive VD-1000132055
6%
$31.05 $33.09
Needle Bearing for Velvet Drives
Needle Beraring OEM VD-4840D
12%
$19.00 $21.60
Needle Bearing Bearing Replaces Crusader R067003 Replaces Pleasurecraft Marine R067003
Neoprene Exhaust Tip Gasket Corsa® Performance 10197
20%
$9.95 $12.49
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...
O-Ring Control Valve Velvet Drive OEM 1000141123
6%
$58.75 $62.56
O-Ring Control Valve for Velvet Drive Borg Warner series gears.
O-RING FRONT PUMP COVER BORG WARNER TRANSMISSION O-RING WITH GASKET PCM # RM0008
5%
$17.61 $18.60
O-RING FRONT PUMP COVER WITH GASKET BORG WARNER 71C & 72C TRANSMISSIONS PCM # RM0008 This is an Original Pleasurecraft Marine Item RM0008 O-RING, FRONT COVER...
O-Ring Large PCM All 40A - 40 I Transmissions OEM R047187 O-Ring Large PCM All 40A - 40 I Transmissions OEM R047187
18%
$5.75 $6.99
PCM Front Pump Cover O-Ring LARGE R047187 O-Ring for ALL PCM 40 I and 40 A transmissions Original Pleasurecraft Marine
O-Ring Shift Spool Borg Warner Transmissions 71C - 72C Velvet Drive Alto 010210B
$1.45
SHIFT SPOOL O-RING BORG WARNER 71C & 72C TRANSMISSIONS Fits 71C and 72C  Alto 010210B This replaces PCM / Crusader R047010
Oil Cooler 12 Inch Barrel X 1-1/4 Inch Barbs OEM R147006 Oil Cooler 12 Inch Barrel X 1-1/4 Inch Barbs OEM R147006
5%
$211.65 $221.66
PCM CRUSADER OIL COOLER TRANSMISSION 12" Barrel x 1-1/4" Barbs 15 in. overall length 2 in. diameter bundle 1 1/4 in. water hose connections Original...
Oil Cooler 9 Inch Barrel X 1-1/4 Inch Barbs OEM R147005 Oil Cooler 9 Inch Barrel X 1-1/4 Inch Barbs OEM R147005
14%
$182.10 $210.98
OIL COOLER TRANSMISSION 9" Barrel x 1-1/4" Barbs This is for Indmar Ford & GM with Powerslot Will also fit Mercruiser GM - 3/8" NPT...
Oil Cooler Transmission Seakamp 9 Inch X 1-1/4 Inch Oil Cooler Seakamp SK-29134
7%
$164.00 $175.62
SEAKAMP BRAND OIL COOLER TRANSMISSION 9" Barrel x 1-1/4" Barbs This is for Indmar Ford & GM with Powerslot Will also fit Mercruiser GM -...
Oil Cooler 9 Inch X 1-1/4 Inch 6.0L Engine OEM R147049
1%
$209.00 $212.06
OEM dual oil cooler fits a variety of Crusader engine applications. 14 in. overall length 2 in. diameter bundle 1 1/4 in. water hose connections...
Oil Cooler 9 Inch X 1-1/4 Inch SeaKamp OEM  SK-29144
8%
$174.00 $189.95
2 in. diameter standard oil cooler accepts 1 1/4 in. water hoses and 1/2 in. NPTF oil connections. Seakamp universal cooler fits many engine oil...
Products Oil Cooler Transmission Indmar OEM 5 Inch Oil Cooler With O-Ring Adaptors for 3/8" Fittings 1-1/4 Inch O.D. OEM 49-5150
24%
$122.39 $159.99
OIL COOLER TRANSMISSION 5" STANDARD COOLER INDMAR BRAND 5 inch Standard Cooler with 3/8" Fittings Replaces Crusader 97112 Replaces Marine Power 0440-001 Replaces Pleasurecraft Marine...
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