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Inboard Marine Engine Exhaust Parts

Inboard Boat Exhaust Parts

Does your boat need replacement parts? At My Inboard Marine, we carry a wide range of inboard boat exhaust parts perfect for fixing or replacing worn out components within the exhaust system. At My Inboard Marine, we carry original equipment. We have everything from nuts and bolts to screws and mufflers from brand names including PCM, Indmar, Mercury, and Mercruiser. Whatever you need, we’ve got it in stock. Keep your boat running efficiently and pulling strong with our specialty marine equipment.

Allow yourself to avoid the headache of running from store to store looking for the right part. Instead, shop through our easy to navigate online store to find the right item for you boat. Browse our store and grab your inboard boat exhaust items from us today.

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Gasket Manifold All GM Small Block Engines PCM RM0287
Gasket Manifold All GM Small Block Engines PCM RM0287
$14.37 $15.48
Gasket Manifold All GM Small Block Engines PCM RM0287
$14.37 $15.48
Manifold Gasket - All years - RM0287 GASKET Replaces Crusader 98192 Original Pleasurecraft Marine RM0287 SOLD PER SIDE - NEED TWO PER ENGINE! Marine gaskets...
Gasket Manifold All GM Small Block Catalyzed Engines Special Gasket Indmar 556202SPEC
Gasket Manifold All GM Small Block Catalyzed Engines Special Gasket Indmar 556202SPEC
$38.50 $46.95
Gasket Manifold All GM Small Block Catalyzed Engines Special Gasket Indmar 556202SPEC
$38.50 $46.95
Manifold Gasket - CATALYZED ENGINES - Indmar Special Gasket All years - Original Indmar - 556202SPEC SOLD PER SIDE - NEED TWO PER ENGINE! CATALYST ENGINES...
Oxygen Sensor All PCM Engines 4 Wire OEM R020051
Oxygen Sensor All PCM Engines 4 Wire OEM R020051 Oxygen Sensor All PCM Engines 4 Wire OEM R020051
$66.00 $88.77
Oxygen Sensor All PCM Engines 4 Wire OEM R020051
$66.00 $88.77
PCM Oxygen (o2) Sensor ALL Years OEM PCM o2 4 wire Oxygen Sensor Used on all PCM Engines pre-catalyst and post-catalyst Also used on ALL GM Indmar engines...
1994-1999 Muffler Mastercraft - 3.5" Inlet w/45° Angle - 3.5" Outlet - SS19/SS190B/190/205 OEM 252026
1994-1999 Muffler Mastercraft - 3.5" Inlet w/45° Angle - 3.5" Outlet - SS19/SS190B/190/205 OEM 252026
$466.27 $765.12
1994-1999 Muffler Mastercraft - 3.5" Inlet w/45° Angle - 3.5" Outlet - SS19/SS190B/190/205 OEM 252026
$466.27 $765.12
1994-1999 MUFFLER MASTERCRAFT 3.5" Inlet  w/45° Angle - 3.5" outlet SS19/SS190B/190/205 OEM 252026 REPLACES THE NLA UM288MUFFLER MUFFLER-3.5" 45° ELBOW SS19/SS19OB/190/205 '94 - '99 26.5"...
Muffler Kit Supra Moomba Skiers Choice 3.5" Inlet W/15° Angle - 3.5" Outlet OEM 100701
Muffler Kit Supra Moomba Skiers Choice 3.5" Inlet W/15° Angle - 3.5" Outlet OEM 100701
$1,143.26 $1,503.12
Muffler Kit Supra Moomba Skiers Choice 3.5" Inlet W/15° Angle - 3.5" Outlet OEM 100701
$1,143.26 $1,503.12
MUFFLER KIT SUPRA MOOMBA SKIERS CHOICE Two 3.5" inlets w/15° angle Two 3.5" outlets Does NOT come with the 2 Rubber Elbows part number 111417 OEM...
Manifold Exhaust Mounting Kit GM 5.7L Engines Indmar OEM 49-1006
MANIFOLD EXHAUST MOUNTING KIT GM ALL 5.7L ENGINES INDMAR OEM 49-1006 Manifold Exhaust Mounting Kit GM 5.7L Engines Indmar OEM 49-1006
$22.99 $39.99
Manifold Exhaust Mounting Kit GM 5.7L Engines Indmar OEM 49-1006
$22.99 $39.99
Original Equipment Indmar Exhaust Manifold Mounting Kit OEM Indmar 49-1006 Bolt & Elbows Kit OEM Bolts & Both 90° Elbows SOLD PER SIDE - NEED TWO...
See Description For Replacement - Muffler Interchangeable Angled 3-1/2 Inch 45° O.D. Inlet With 3-1/2 Inch O.D. Straight Outlet OEM UM-288MUFFLER
See Description For Replacement - Muffler Interchangeable Angled 3-1/2 Inch 45° O.D. Inlet With 3-1/2 Inch O.D. Straight Outlet OEM UM-288MUFFLER
Sold Out
See Description For Replacement - Muffler Interchangeable Angled 3-1/2 Inch 45° O.D. Inlet With 3-1/2 Inch O.D. Straight Outlet OEM UM-288MUFFLER
Sold Out
UM288MUFFLER IS NLA - Ultra Marine - Muffler Aftermarket Interchangeable FOR REPLACEMENT - CLICK HERE Angled 45 Degree 3-1/2" Inlet With 3-1/2" Straight Outlet 26"...
Gasket Manifold Exhaust All GM Small Block Non-Catalyzed Engines Indmar CHV-47-0000
Gasket Manifold Exhaust All GM Small Block Non-Catalyzed Engines Indmar CHV-47-0000
$16.50 $17.54
Gasket Manifold Exhaust All GM Small Block Non-Catalyzed Engines Indmar CHV-47-0000
$16.50 $17.54
Manifold Exhaust Gasket - All years - Barr Original Indmar SOLD PER SIDE - NEED TWO PER ENGINE! NON-CAT ENGINES ONLY! This gasket can be...
Bolt For Exhaust Manifold Stainless Ford All Years PCM RS3945
Bolt For Exhaust Manifold Stainless Ford All Years PCM RS3945 Bolt For Exhaust Manifold Stainless Ford All Years PCM RS3945
$3.00 $4.29
Bolt For Exhaust Manifold Stainless Ford All Years PCM RS3945
$3.00 $4.29
Stainless Steel Allen Head Bolt 3/8 -16 x 1 1/8 In SOLD EACH! 8 Bolts are needed per manifold OEM Exhaust Manifold Bolt PCM Ford...
Indmar Re-Plumb Kit 5.7L EXT Catalyzed Engines Original Indmar 495180
OEM Indmar 49-5180 RE-PLUMB KIT FOR 5.7 EXT CAT
$134.00 $170.20
Indmar Re-Plumb Kit 5.7L EXT Catalyzed Engines Original Indmar 495180
$134.00 $170.20
OEM Indmar 49-5180 RE-PLUMB KIT FOR 5.7 EXT CAT This kit changes the water flow through the 5.7L ETX CAT exhaust manifolds (re-routes the cooling...
1994-1997 Muffler Mastercraft - 3.5" Offset Inlet/Outlet MS200/MS225 VRS - 17" OAL OEM 252029
1994-1997 Muffler Mastercraft - 3.5" Offset Inlet/Outlet MS200/MS225 VRS - 17" OAL OEM 252029
$498.00 $809.33
1994-1997 Muffler Mastercraft - 3.5" Offset Inlet/Outlet MS200/MS225 VRS - 17" OAL OEM 252029
$498.00 $809.33
MUFFLER MASTERCRAFT 1994 - 1997 3.5" offset  inlet/outlet MS200/MS225 VRS - 17" OAL  OEM 252029 Fits both sides - Starboard & Port MUFFLER - 3.5"...
Riser Exhaust 3.5" PCM H.O. Ford - GM OEM PCM R029011
Riser Exhaust 3.5" PCM H.O. Ford - GM OEM PCM R029011 Riser Exhaust 3.5" PCM H.O. Ford - GM OEM PCM R029011
$275.00 $310.00
Riser Exhaust 3.5" PCM H.O. Ford - GM OEM PCM R029011
$275.00 $310.00
OEM Pleasurecraft Marine HO Exhaust Elbow Riser 3.5" Riser IN STOCK FOR NOW! 3.5" PCM Exhaust Elbow Riser fits 5.7L Engines - R029011 This is...
Fitting Nylon 3/8" NPT X 5/8" Barb 90 Degree For Manifold Water Drain Hose Indmar 605019
FITTING NYLON 3/8" NPT X 5/8" BARB 90 DEGREE FOR MANIFOLD WATER DRAIN HOSE INDMAR 605019
$5.49 $8.55
Fitting Nylon 3/8" NPT X 5/8" Barb 90 Degree For Manifold Water Drain Hose Indmar 605019
$5.49 $8.55
90 Degree Elbow Nylon Fitting For Indmar Manifolds 3/8" X 5/8" OEM Indmar 605019  Sold each. Note! DO NOT replace this fitting with anything other than nylon. Replacing these...
1990-1993 Muffler Mastercraft Lift - 3" Inline Lift 60° Angle - 3" Outlet Approximate OAL 26"L OEM 252015
1990-1993 MUFFLER MASTERCRAFT LIFT - 3" INLINE LIFT 60° ANGLE - 3" OUTLET 24"L OEM 252015
$515.52 $741.05
1990-1993 Muffler Mastercraft Lift - 3" Inline Lift 60° Angle - 3" Outlet Approximate OAL 26"L OEM 252015
$515.52 $741.05
MUFFLER MASTERCRAFT LIFT 1990-1993 + 3" INLINE LIFT 60° ANGLE - 3" OUTLET APPROXIMATELY 26" OVERALL LENGTH OEM 252015 Part# 252015 3" Inlet & 3"...
Muffler Interchangeable Ultra 3 Inch Straight Inlet With 3 Inch Straight Outlet 13 Inches Long OEM UM-289-3000
Muffler Interchangeable Ultra 3 Inch Straight Inlet With 3 Inch Straight Outlet 13 Inches Long OEM UM-289-3000 Muffler Interchangeable Ultra 3 Inch Straight Inlet With 3 Inch Straight Outlet 13 Inches Long OEM UM-289-3000
$225.00 $380.73
Muffler Interchangeable Ultra 3 Inch Straight Inlet With 3 Inch Straight Outlet 13 Inches Long OEM UM-289-3000
$225.00 $380.73
Ultra Marine - Muffler Aftermarket Interchangeable UM-289-3000 13" Total length 3" inlet/outlet Also available in 3-1/2" & 4" in - out Straight 3" Inlet with...
Manifold Elbow Brass 3/4 Inch X 1 Inch NPT Hose Barb Indmar & PCM R024006A
Manifold Elbow Brass 3/4 Inch X 1 Inch NPT Hose Barb Indmar & PCM R024006A
$24.45 $26.95
Manifold Elbow Brass 3/4 Inch X 1 Inch NPT Hose Barb Indmar & PCM R024006A
$24.45 $26.95
1" X 3/4" - Brass Elbow for Manifold for Indmar OR PCM PCM BRAND Replaces Osco Fittings for 28001 Marine brass elbow for exhaust manifold inlet...
Muffler Kit Supra Moomba Skiers Choice Kit-340 Catalyst Muffler 3.5" Inlets-39° Angle 3.5" Outlets OEM 107208
MUFFLER KIT SUPRA MOOMBA SKIERS CHOICE KIT -340 Cayalist Muffler w/(2) Rubber Elbows OEM 107208
$1,197.31 $1,412.17
Muffler Kit Supra Moomba Skiers Choice Kit-340 Catalyst Muffler 3.5" Inlets-39° Angle 3.5" Outlets OEM 107208
$1,197.31 $1,412.17
MUFFLER KIT SUPRA MOOMBA SKIERS CHOICE KIT Does NOT include the 2 rubber elbows! 340 Catalyst Muffler - 3.5" In / 3.5" Out 39° Angle...
Muffler Tige' - 3" Inlet W/Extended 76° Angle - 3.5" Outlet - 27" Body Length OEM - 4087-T
MUFFLER TIGE' - 3" inlet w/extended 76° angle - 3.5" outlet - 27" body length OEM - 4087-T
$542.18 $704.01
Muffler Tige' - 3" Inlet W/Extended 76° Angle - 3.5" Outlet - 27" Body Length OEM - 4087-T
$542.18 $704.01
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!...
Exhaust Riser 4 Inch Crusader High Profile Barr Marine CR-20-29015
Exhaust Riser - 4 Inch Crusader High Profile Barr Marine CR-20-29015 Exhaust Riser 4 Inch Crusader High Profile Barr Marine CR-20-29015
$369.00 $457.00
Exhaust Riser 4 Inch Crusader High Profile Barr Marine CR-20-29015
$369.00 $457.00
Exhaust Riser Barr Marine replacement 4 inch Crusader exhaust elbow used on the center rise manifold design. New version reduces the chances of water intrusion...
Riser Block Off Plate Stainless Steel Crusader 98124
Riser Block Off Plate Stainless Steel Crusader 98124
$10.00 $12.30
Riser Block Off Plate Stainless Steel Crusader 98124
$10.00 $12.30
OEM Winged block off plate for Crusader closed cooled engines with center rise exhaust manifolds. Antifreeze Cooling Systems. Crusader exhaust riser block off plate Stainless...
Manifold Exhaust PCM GM 305 - 350 Small Block Engines PCM-R028009
Manifold Exhaust PCM GM 305 - 350 Small Block Engines PCM-R028009 Manifold Exhaust PCM GM 305 - 350 Small Block Engines PCM-R028009
$344.00 $352.29
Manifold Exhaust PCM GM 305 - 350 Small Block Engines PCM-R028009
$344.00 $352.29
OEM Pleasurecraft Marine center rise exhaust manifold fits GM 5.0L & 5.7L - 305 - 350 CID marine engines. PCM exhaust manifold For Pleasurecraft Marine GM...
Muffler Tige' - 3" Inlet w/90° Angle - 3.5" Outlet - Port - 6" Body Length OEM - UM-TB-4178-P
MUFFLER TIGE' - 3" inlet w/90°angle - 3.5" outlet - Port - 6" body length OEM - UM-TB4178-P
$470.76 $543.21
Muffler Tige' - 3" Inlet w/90° Angle - 3.5" Outlet - Port - 6" Body Length OEM - UM-TB-4178-P
$470.76 $543.21
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/Extended 90° Angle - 3.5" Outlet - 15" Body Length OEM - TB4087
Muffler Tige' - 3" Inlet W/Extended 90° Angle - 3.5" Outlet - 15" Body Length OEM - TB4087
$497.50 $589.53
Muffler Tige' - 3" Inlet W/Extended 90° Angle - 3.5" Outlet - 15" Body Length OEM - TB4087
$497.50 $589.53
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...
Manifold Exhaust For GM Small Block 305 - 350 All 5.7L Engines Manifold Only Indmar OEM 53-1051
Manifold Exhaust For GM Small Block 305 - 350 All 5.7L Engines Manifold Only Indmar OEM 53-1051 Manifold Exhaust For GM Small Block 305 - 350 All 5.7L Engines Manifold Only Indmar OEM 53-1051
$595.00 $687.48
Manifold Exhaust For GM Small Block 305 - 350 All 5.7L Engines Manifold Only Indmar OEM 53-1051
$595.00 $687.48
Original Equipment Indmar Exhaust Manifold 53-1051 Manifold ONLY - Fits Port & Starboard - Same Part Number. GM V8 Small Block Exhaust Manifold Fits Indmar GM...
Mounting kit ETX Manifold NON-CAT 53-1300 & 53-1301 Hardware Kit OEM 49-5095
Mounting kit ETX Manifold NON-CAT 53-1300 & 53-1301 Hardware Kit OEM 49-5095 Mounting kit ETX Manifold NON-CAT 53-1300 & 53-1301 Hardware Kit OEM 49-5095
$25.00 $39.99
Mounting kit ETX Manifold NON-CAT 53-1300 & 53-1301 Hardware Kit OEM 49-5095
$25.00 $39.99
Original Equipment Indmar Exhaust Manifold Mounting Kit HARDWARE KIT ETX (NON CAT ONLY) MANIFOLD MOUNTING. For manifolds that have a tee installed use the 2 supplied...
Aluminum Exhaust Manifold 8.1L GM Indmar OEM 53-1278
Aluminum Exhaust Manifold 8.1L GM Indmar OEM 53-1278
$725.00 $849.95
Aluminum Exhaust Manifold 8.1L GM Indmar OEM 53-1278
$725.00 $849.95
8.1L Aluminum Exhaust Manifold for Fuel Injected Indmar Marine Engines.  These manifolds are raw aluminum color and say Malibu on them. GM Big Block Marine Engine...
Pipe Plug Hex Head Brass Exhaust Manifold 6.0L 3/8" NPT OEM RS3557
Pipe Plug Hex Head Brass Exhaust Manifold 6.0L 3/8" NPT OEM RS3557 Pipe Plug Hex Head Brass Exhaust Manifold 6.0L 3/8" NPT OEM RS3557
$2.99 $3.99
Pipe Plug Hex Head Brass Exhaust Manifold 6.0L 3/8" NPT OEM RS3557
$2.99 $3.99
Pipe Plug for Exhaust Manifold 6.0L 3/8" NPT - Hex Head 2004 and up PCM 6.0L drain plug, 2 per manifold Also fits Indmar EXT Manifolds...
Manifold Exhaust 5.0L - 5.7L PCM OEM Port Side RA028025A
Manifold Exhaust 5.0L - 5.7L PCM OEM Port Side RA028025A
$1,024.00 $1,025.00
Manifold Exhaust 5.0L - 5.7L PCM OEM Port Side RA028025A
$1,024.00 $1,025.00
OEM Pleasurecraft Marine Aluminum Exhaust Manifold-Port SPECIAL ORDER ITEM. PLEASE ALLOW 2 - 3 WEEKS FOR DELIVERY  PCM WILL NOT SEND OUT A MANIFOLD THAT IS...
2009-2011 Muffler Mastercraft Late 2009 - 2011 - 3.5"Inlet/Outlet - Vertical Starboard 214V/MX/XS/ex.35 Use W/RTP/MCX/LY6 OEM 252063
2009-2011 Muffler Mastercraft Late 2009 - 2011 - 3.5"Inlet/Outlet - Vertical Starboard 214V/MX/XS/ex.35 Use W/RTP/MCX/LY6 OEM 252063
$547.98 $847.62
2009-2011 Muffler Mastercraft Late 2009 - 2011 - 3.5"Inlet/Outlet - Vertical Starboard 214V/MX/XS/ex.35 Use W/RTP/MCX/LY6 OEM 252063
$547.98 $847.62
MUFFLER MASTERCRAFT LATE 2009 - 2011 3.5"inlet/outlet Vertical Starboard 214V/MX/XS/ex.35 Use W/RTP/MCX/LY6 OEM 252063 MUFFLER-3.5"VERT. STARBOARD LATE 2009 - 2011 214V/MS/XS/ex.35 CLICK HERE FOR PORT...
Muffler Interchangeable Angled 3 Inch O.D. 60° Inlet With 3 Inch O.D. Straight Outlet 46 Inches Long OEM UM-288-3001
Muffler Interchangeable Angled 3 Inch O.D. 60° Inlet With 3 Inch O.D. Straight Outlet 43 Inches Long OEM UM-288-3001
$329.00 $486.95
Muffler Interchangeable Angled 3 Inch O.D. 60° Inlet With 3 Inch O.D. Straight Outlet 46 Inches Long OEM UM-288-3001
$329.00 $486.95
Ultra Marine - Muffler Aftermarket Interchangeable UM-288-3001 60 Degree Angled 3" Inlet With 3" Straight Outlet 46" Tip to Tip 35" Barrel 4-1/4" Outside Diameter...
Manifold Exhaust And Complete Install Kit With Gaskets For GM All 5.7L Engines OEM CHV-1-83
Manifold Exhaust And Complete Install Kit With Gaskets For GM All 5.7L Engines OEM CHV-1-83 Manifold Exhaust And Complete Install Kit With Gaskets For GM All 5.7L Engines OEM CHV-1-83
$389.00 $538.00
Manifold Exhaust And Complete Install Kit With Gaskets For GM All 5.7L Engines OEM CHV-1-83
$389.00 $538.00
Original Equipment 5.7L All Years. Barr CHV-1-83 For Sierra, CLICK HERE Fits Port & Starboard - Same Part Number PLEASE NOTE: - This part number...
Volvo Exhaust Temperature Sender For Riser Factory Original 3862500
Volvo Exhaust Temperature Sender For Riser Factory Original 3862500
$39.15 $41.85
Volvo Exhaust Temperature Sender For Riser Factory Original 3862500
$39.15 $41.85
OEM Volvo exhaust temperature switch activates an alarm if overheating occurs. This is the ORIGINAL VOLVO PENTA SENSOR OEM REPLACEMENT Exhaust Temperature Sensor Warns of...
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