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!

2013 MUFFLER MASTERCRAFT - Port 3.5"inlet w/68° angle tilted 15° - 90° outlet  OEM 252089P
$909.49 $1,138.57
MUFFLER MASTERCRAFT 2013 - 2014 PORT SIDE Port 3.5" inlet w/68° angle tilted 15° 90° outlet OEM 252089P MUFFLER - PORT SIDE  - 2013 -...
Gasket - Seal Kit Transmission 71C - 72C Velvet Drive 023801B
$69.50 $83.56
OEM kit includes all gaskets & seals needs to reseal Velvet Drive 71C & 72C marine transmissions. Gasket & Seal Kit - All 71C and...
Gasket - Oil Seal Kit Transmission 40A and 40I PCM Transmissions OEM PCM RK173058
$220.65
PCM Gasket and Oil Seal Kit PCM Transmission Gasket and Seal Kit Includes the gaskets and seals needed to rebuild PCM brand transmissions For PCM...
1998-2006 Muffler Kit Mastercrfaft - TBI VRS 205V/210/230 /Xstar/200/X1/215 - 06)  OEM 253000
$1,353.06 $1,915.33
MUFFLER MASTERCRAFT KIT 1998-2006 TBI VRS 205V/210/230 /Xstar/200/X1/215 - 06 Does NOT include the rubber elbows! OEM 253000 Inlets are straight Inlet holes are center...
4 Inch. Exhaust Tips With Flapper Corsa® Performance 11050 4 Inch. Exhaust Tips With Flapper Corsa® Performance 11050
$325.91 $359.00
Pair of polished stainless steel exhaust tips fit inboard boats with 4 in. exhaust. ONE PAIR 90 degree flange exhaust tips Full 6 inch diameter...
Transmission Oil Cooler 5 Inch Barrel X 1-1/4 Inch O.D. Barbs CRU-97112
$162.68
Transmission Oil Cooler - OEM Crusader / PCM 8 inch overall length 1-1/4 inch water hose connections Original Crusader Replaces Marine Power 0440-001 If you...
Damper Plate Standard Plate GM 5.7 - 5.0 - Hurth OEM R140019 OEM Crusader damper plate fits 262, 305, 350, 454, and 502 cu. in. marine engines to ZF Hurth and Velvet Drive 5000 series transmissions. OEM Crusader damper plate R140019Damper Plate Standard Plate GM 5.7 - 5.0 - Hurth OEM R140019
$334.26
OEM Crusader damper plate fits 262, 305, 350, 454, and 502 cu. in. marine engines to ZF Hurth and Velvet Drive 5000 series transmissions. OEM...
Gasket - Seal Kit Transmission Hurth - ZF - 630 V OEM MMD-3312199020
$135.18 $148.69
Replacement gasket & Seal kit Complete ZF 63IV / 630V Transmission Gasket & Seal Kit Includes new filter & all gaskets/seals needed to reseal ZF 630V...
Flapper Exhaust Protector Valve 4 Inch Flapper Exhaust Protector Valve 4 Inch
$32.05 $36.99
4 Inch Exhaust Flapper Protective Valve With Clamp Exhaust protector valve mounts on the outside of 4 in. exhaust tip to prevent backflow of water...
MUFFLER TIGE' - 3" inlet w/90° angle - 3.5" outlet - Starboard - 5.5" body length OEM - UM-TB4178-S
$470.76 $543.21
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 Supra Moomba Skiers Choice 3.5" Inlet W/60° - 3.5" Outlet OEM 104425
$585.00 $657.84
MUFFLER SUPRA MOOMBA SKIERS CHOICE & SOME MASTERCRAFT AND OTHERS 3.5" inlet w/60° Angle 3.5" outlet Overall Length Approximately 26" OEM 104425 Shipping Dimensions: 30x14x11...
2013-2014 Muffler Mastercraft - 3.5"Inlet/Outlet - Starboard Universal  OEM 252087S
$725.00 $1,037.39
MUFFLER MASTERCRAFT 2013 - 2014 3.5"inlet/outlet Starboard Universal OEM 252087S MUFFLER - STARBOARD SIDE 2013 - 2014  Manufactured by Ultra Marine. Easy to install! Ultra Marine...
Muffler Interchangeable Straight 3 Inch O.D. Inlet & 3 Inch O.D. Straight Outlet 41 Inches Long OEM UM-288-3000
$265.00 $427.70
Ultra Marine - Muffler Aftermarket Interchangeable UM-288-3000 Straight 3" Inlet With 3" Straight Outlet 41" Tip to Tip 35" Barrel Length The O.D. of the...
Muffler Interchangeable 13" Ultra Straight 3-1/2 Inch O.D. Inlet With 3-1/2 Inch O.D. Straight Outlet 13 Inches Long OEM UM-289-3120
$265.00 $413.67
Ultra Marine - Muffler Aftermarket Interchangeable UM-289-3120 Ultra Straight 3-1/2" Inlet With 3-1/2" Straight Outlet 13" Tip to Tip 3-1/2" in - 3-1/2" out Some...
PCM 1:1 80S V-Drive GM Transmission Kit Pleasurecraft RF157015-25 PCM 1:1 80S V-Drive GM Transmission Kit Pleasurecraft RF157015-25
$4,100.00
Transmission update kit to replace PCM 40IS model 1:1 ratio with 80S transmission used in combination with the PCM PowerPlus v-drive on GM engines.  Conversion...
Transmission Oil Cooler 5 Inch Barrel X 1" - One Inch O.D. Barbs OEM Crusader R147003 Transmission Oil Cooler 5 Inch Barrel X 1" - One Inch O.D. Barbs OEM Crusader R147003
$158.89
Transmission Oil Cooler - OEM Crusader / PCM OIL COOLER, 5 INCH X 1 INCH with 3/8" NPT Fitting
Muffler Interchangeable Angled 3 Inch O.D. 60° Inlet With 3 Inch O.D. Straight Outlet 46 Inches Long Custom Built OEM UM-288-3001-46
$329.00 $486.95
Ultra Marine - Muffler Aftermarket Interchangeable UM-288-3001-46 - CUSTOM SIZE 60 Degree Angled 3" Inlet With 3" Straight Outlet 46" Tip to Tip - NOTE...
Gasket - Seal Kit Transmission Hurth - ZF - 630 IV OEM 316807AB Gasket - Seal Kit Transmission Hurth - ZF - 630 IV OEM 316807AB
$205.00 $220.80
Seal and gasket kit used on the Hurth 630V1 and ZF 63IV v-drive transmission models Includes pump and control valve gasket, necessary o-rings, input shaft...
2008-2012 Muffler Mastercraft Angled 3-1/2" Offset Inlet At 20° Angle Vertical 280-MCX 252002
$472.50 $699.99
Mastercraft Muffler Silent Master for MCX 2008 - 2012 Part# 252002 20 ° Angled 3-1/2" Offset Inlet Manufactured by Ultra Marine. Easy to install! Ultra Marine Fine...
Rubber Elbow Set For Muffler Kit Supra Moomba Skiers Choice 3.5" Inlet W/15° Angle - 3.5" Outlet OEM 100701 Rubber Elbow Set For Muffler Kit Supra Moomba Skiers Choice 3.5" Inlet W/15° Angle - 3.5" Outlet OEM 100701
$415.00 $549.00
RUBBER ELBOWS ONLY FOR THE UM-100701 MUFFLER KIT SUPRA MOOMBA SKIERS CHOICE One Set of 2 Rubber Elbows part number 111417 Lead Time To Ship...
Hose Stuffing Box Hose 1-3/4" I.D. X 3.3" Hose Stuffing Box Hose 1-3/4" I.D. X 3.3"
$18.00 $27.99
STUFFING BOX HOSE Includes 2 Stainless Steel Clamps - 1-3/4" Inside Diameter X 3.3" Long.    
Damper Plate GM PCM 80 Series ZF And Velvet Drive OEM R140023
$399.50
Transmission damper drive plate used with 80 series PCM transmission, ZF Hurth and Velvet Drive transmissions on GM engines with 14" diameter flywheel. Damper drive...
TRANSMISSION COMPLETE BORG WARNER 1:1 VELVET DRIVE 71 C
$8,495.00 $9,995.00
TRANSMISSION COMPLETE BORG WARNER 1:1 VELVET DRIVE 72 C This is a NEW transmission not Rebuilt. This is a NEW 72C (10-18) transmission for 454 Big...
TRANSMISSION COMPLETE BORG WARNER 1:1 VELVET DRIVE 71 C Transmission Complete Borg Warner 1:1 Velvet Drive 71 C 1017-000-004
$4,825.00 $5,390.00
TRANSMISSION COMPLETE BORG WARNER 1:1 VELVET DRIVE 71 C This is a NEW transmission not Rebuilt! Inline Borg Warner marine transmission Direct drive 1:1 ratio 71C...
Outlet Exhaust 3-1/2" Straight Flange Exhaust No Baffle-Muffler Outlet Stainless Steel No Flapper Needed
$218.90 $273.90
45° Straight Cut Pipe Exhaust Outlet With Straight Flange 3-1/2" NO BAFFLE! SOLD EACH! 3-1/2" 304 Stainless Steel Straight Thru Hull - NO INTERNAL BAFFLE...
2004-2006 Muffler Kit Mastercraft - MCX 205V/X2/210/X10/230/X30/280/X80/Xstar/X1 OEM 253010A
$1,309.22 $1,801.79
MUFFLER KIT MASTERCRAFT 2004-2006 MCX 205V/X2/210/X10/230/X30/280/X80/Xstar/X1 OEM 253010A Does NOT include the rubber elbows! Inlets are tilted outwards towards the end caps Inlet holes are...
Fitting Transmission Cooler 90 Degree OEM 89-5002
$8.02 $9.95
Replacement Fitting For Transmission Oil Cooler - OEM Indmar 895002  
Transmission Cooler Hose 1/2 x 35.5 LENGTH OEM 81-1105
$69.00 $72.32
Replacement Hose For Transmission Oil Cooler - Indmar 811105 & PCM RA045007H Hose 1/2 X 35 1/2 OAL Flex Loc Replaces PCM RA045007H
Transmission Cooler Hose 45 Inches OEM 81-1145
$45.32 $48.32
Replacement Hose For Transmission Oil Cooler - OEM Indmar 811145 ONE LEFT THEN THIS ITEM WILL BE NO LONGER AVAILABLE. IF YOU CAN ADD ONE...
Flapper Exhaust Protector Valve With Clamp "5 & 6" SIERRA-18-4458 - CLEARANCED Flapper Exhaust Protector Valve With Clamp "5 & 6" SIERRA-18-4458 - CLEARANCED
$70.00 $83.79
Exhaust protector valve mounts on the outside of 5 in. & 6 in. exhaust tip to prevent backflow of water into the exhaust. For 5...
Oil Pump Gasket Borg Warner Transmissions 71C - 72C Velvet Drive VD-3-61
$17.95 $20.18
Oil Pump Gasket Borg Warner Transmissions 71C - 72C Velvet Drive VD-3-61
2013-2014 Muffler Mastercraft- 3.5" Inlet/Outlet - Port Universal  OEM 252087P
$708.68 $1,037.30
MUFFLER MASTERCRAFT 2013 - 2014 3.5"inlet/outlet Port Universal OEM 252087P MUFFLER - PORT SIDE 2013 - 2014 Manufactured by Ultra Marine. Easy to install! Ultra...
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