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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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Mercruiser GM V6 Exhaust Manifold | Barr MC-1-99746
Mercruiser GM V6 Exhaust Manifold | Barr MC-1-99746 Mercruiser GM V6 Exhaust Manifold | Barr MC-1-99746
$245.41 $590.00
Mercruiser GM V6 Exhaust Manifold | Barr MC-1-99746
$245.41 $590.00
Mercruiser GM V6 Exhaust Manifold | Barr MC-1-99746 Direct replacement, water cooled, center discharge MerCruiser exhaust manifold. Replaces MerCruiser part #'s #399746A3 and #99746A8. Direct...
3 inch Mercruiser Exhaust Riser | Barr MC-20-98504
3 inch Mercruiser Exhaust Riser | Barr MC-20-98504 3 inch Mercruiser Exhaust Riser | Barr MC-20-98504
$236.48 $350.00
3 inch Mercruiser Exhaust Riser | Barr MC-20-98504
$236.48 $350.00
3 InchExhaust Riser BARR-MC-20-98504 Direct replacement, water cooled, center discharge MerCruiser exhaust riser. Replaces MerCruiser part #B-98504A3. Uses 3" I.D. exhaust hose. 15 degree angle....
Mercruiser GM V8 Small Block Exhaust Manifold OEM Barr MC-1-87114
Mercruiser GM V8 Small Block Exhaust Manifold OEM Barr MC-1-87114
$428.99 $517.00
Mercruiser GM V8 Small Block Exhaust Manifold OEM Barr MC-1-87114
$428.99 $517.00
Original Equipment Cast iron center rise exhaust manifold fits Mercruiser 898R, 228R, & 260R marine engines. Includes bolts and gaskets for riser and manifold; full...
Valve Stem Seal 454 Set of 16 | R047182
Valve Stem Seal 454 | OEM Crusader R047182
$147.04 $205.99
Valve Stem Seal 454 Set of 16 | R047182
$147.04 $205.99
Valve Stem Seal - SOLD PER SET OF 16 Replaces Crusader 30241 Replaces Pleasurecraft R047182
2014 Muffler Mastercraft - Prostar 5.7 For Port or Starboard 2500391
2014 Muffler Mastercraft - Prostar 5.7 For Port or Starboard 2500391
$496.75 $697.22
2014 Muffler Mastercraft - Prostar 5.7 For Port or Starboard 2500391
$496.75 $697.22
Mastercraft Muffler - 2014 5.7L ULTRA-2500391 Part# 2500391 Fits Port OR Starboard Side SOLD EACH Main Barrel is 4" Diameter - 28" not including inlet...
Gasket Intake Manifold Gasket GM Small Block 305-350 OEM 55-6099
Gasket Intake Manifold Gasket GM Small Block 305-350 OEM 55-6099 Gasket Intake Manifold Gasket GM Small Block 305-350 OEM 55-6099
$76.25 $82.11
Gasket Intake Manifold Gasket GM Small Block 305-350 OEM 55-6099
$76.25 $82.11
Intake gasket used in GM 5.7 liter Generation 1 Plus. 2 gaskets required for inatallation. SOLD EACH - You will need to order 2 of...
Manifold Gasket Armored Airgap Gasket Gen 3 76-1501
Manifold Gasket Armored Airgap Gasket Gen 3 76-1501
$15.18 $16.35
Manifold Gasket Armored Airgap Gasket Gen 3 76-1501
$15.18 $16.35
GASKET EXHAUST EXT. armored airgap gasket for Gen 3 engine OEM Indmar  
Drain Hose Exhaust With Tee & Drain Plug Indmar 81-5900
Drain Hose Exhaust With Tee & Drain Plug Indmar 81-5900
$41.17 $44.34
Drain Hose Exhaust With Tee & Drain Plug Indmar 81-5900
$41.17 $44.34
Exhaust Drain Hose Tee OEM Indmar 605904 Plastic T that fits 5/8" hose with threaded drain hole For Plastic Tee Fitting - CLICK HERE For...
Exhaust Manifold To Head Gasket 8.1LCrusader RM0294
Exhaust Manifold To Head Gasket 8.1LCrusader RM0294
$10.92
Exhaust Manifold To Head Gasket 8.1LCrusader RM0294
$10.92
Manifold Exhaust Gasket - GM Big Block - Barr Original Indmar SOLD PER SIDE - NEED TWO PER ENGINE! EXHAUST MANIFOLD GASKET Original equipment Crusader exhaust manifold...
Manifold to Cylinder Head Bolt 3/8-16 x 1-1/2 Crusader 90348150
Manifold to Cylinder Head Bolt - 3/8-16 x 1-1/2 Crusader 90348150
$2.25
Manifold to Cylinder Head Bolt 3/8-16 x 1-1/2 Crusader 90348150
$2.25
Used to mount Crusader MP5.7 and MP7.4 center style exhaust manifold to cylinder head. Replaces Crusader 21307 and 186628 If you need the other, Gold...
Verna Ski Inline Muffler - 3 Inch Centek Industries 1000216
Verna Ski Inline Muffler - 3 Inch Centek Industries 1000216
$309.33 $350.72
Verna Ski Inline Muffler - 3 Inch Centek Industries 1000216
$309.33 $350.72
Fiberglass wet exhaust muffler is designed to reduce the noise of gasoline inboard engines in ski boats. Centek Verna Ski muffler Fiberglass construction 45 degree...
Elbow Exhaust 6.0L PCM ZR Engines 3-1/2 Non Crusader PCM R029016
Elbow Exhaust 6.0L PCM ZR Engines 3-1/2 Non Crusader PCM R029016 Elbow Exhaust 6.0L PCM ZR Engines 3-1/2 Non Crusader PCM R029016
$365.55
Elbow Exhaust 6.0L PCM ZR Engines 3-1/2 Non Crusader PCM R029016
$365.55
OEM Pleasurecraft Marine Exhaust Elbow- R029016 Original equipment PCM 6.0L exhaust elbow Elbow is painted PCM black color Exhaust hose connection is 3 1/2 inches...
Intake Gasket GT 40 Upper Intake Gasket OEM PCM-RM0236
Intake Gasket GT 40 Upper Intake Gasket OEM PCM-RM0236
$60.19
Intake Gasket GT 40 Upper Intake Gasket OEM PCM-RM0236
$60.19
Upper Intake Gasket GT 40 OEM PCM-RM0236 Replaces OMC/Johnson/Evinrude 3853636 Replaces Volvo Penta 3853636
Crusader 8 Inch Riser Mounting Package Barr Marine CR-20-97169P
Crusader 8 Inch Riser Mounting Package Barr Marine CR-20-97169P
$57.78 $69.00
Crusader 8 Inch Riser Mounting Package Barr Marine CR-20-97169P
$57.78 $69.00
Mounting package for Crusader 97169 exhaust riser includes needed gaskets, studs, nuts & washers. Barr Crusader riser hardware kit For Crusader 97169 & Barr CR-20-97169...
Formed Exhaust Hose With Stops OEM Indmar 84-7050
Formed Hose 3 inch to 3.5 inch diameter formed exhaust hose with stops. OEM INDMAR 847050 Formed Hose 3 inch to 3.5 inch diameter formed exhaust hose with stops. OEM INDMAR 847050
$82.88 $89.25
Formed Exhaust Hose With Stops OEM Indmar 84-7050
$82.88 $89.25
Formed Hose 3 inch to 3.5 inch diameter formed exhaust hose with stops. OEM INDMAR 847050
Black Exhaust Thru Hull with Flapper - 3 Inch Centek 1200299
Black Exhaust Thru Hull with Flapper - 3 Inch Centek 1200299 Black Exhaust Thru Hull with Flapper - 3 Inch Centek 1200299
$155.22
Black Exhaust Thru Hull with Flapper - 3 Inch Centek 1200299
$155.22
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...
Riser Mercruiser 3 InchExhaust Riser Barr Marine MC-20-76771
Riser Mercruiser 3 InchExhaust Riser Barr Marine MC-20-76771
$294.00 $394.00
Riser Mercruiser 3 InchExhaust Riser Barr Marine MC-20-76771
$294.00 $394.00
3 InchExhaust Riser BARR-MC-20-76771 Barr Mercruiser inboard exhaust riser Fits Mercruiser 198, 228, 255, 260, 898, 188, 215, 225, 233, 255, and 888 model marine...
GM Small Block Exhaust Manifold Barr OMC-1-914035
GM Small Block Exhaust Manifold Barr OMC-1-914035
$433.00 $552.00
GM Small Block Exhaust Manifold Barr OMC-1-914035
$433.00 $552.00
The Barr OMC-1-914035 cast iron center rise exhaust manifold fits OMC & Volvo Penta 5.7L 350 CID marine engines. Comes with gaskets and mounting hardware...
Bolt 12 Point Hd Bolt 3/8-16 X 1 1/4 RS0460
Bolt 12 Point Hd Bolt 3/8-16 X 1 1/4 RS0460
$2.45
Bolt 12 Point Hd Bolt 3/8-16 X 1 1/4 RS0460
$2.45
BOLT 3/8 16 X 1 1/4 - RS0460 SOLD EACH! Bolt, Torque HD 3/8-16 X 1-1/4 RS0460 3/8 16 X 1-1/4 12 POINT HD Replaces...
Bolt For Exhaust Manifold RS0456 - HHCS, GR.8 3/8-16 X 2-1/2 RS0456
Bolt For Exhaust Manifold RS0456 - HHCS, GR.8 3/8-16 X 2-1/2 RS0456
$1.10
Bolt For Exhaust Manifold RS0456 - HHCS, GR.8 3/8-16 X 2-1/2 RS0456
$1.10
BOLT 3/8 16 X 2 1/2 - RS0456 SOLD EACH! HHCS, GR.8 3/8-16 X  2-1/2 6 Bolts are needed per manifold OEM Exhaust Manifold Bolt
Neoprene Exhaust Tip 4 Inch Gasket Corsa® Performance 10197
Neoprene Exhaust Tip Gasket Corsa® Performance 10197
$12.00 $14.48
Neoprene Exhaust Tip 4 Inch 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...
4 Inch Angle Cut Transom Exit Exhaust Tips Set of 2 With Flapper Corsa Performance 11000
4 Inch Angle Cut Transom Exit Exhaust Tips With Flapper Corsa Performance 11000 4 Inch Angle Cut Transom Exit Exhaust Tips With Flapper Corsa Performance 11000
$394.00 $399.99
4 Inch Angle Cut Transom Exit Exhaust Tips Set of 2 With Flapper Corsa Performance 11000
$394.00 $399.99
Pair of polished stainless steel thru hull exhaust tips fit inboard boats with 4 in. exhaust. 90 degree flange exhaust tips Sold as a pair...
Manifold Exhaust Kit Port Side For Indmar OEM Indmar 4953401
Manifold Exhaust Kit Port Side For Indmar OEM Indmar 4953401 Manifold Exhaust Kit Port Side For Indmar OEM Indmar 4953401
Sold Out
Manifold Exhaust Kit Port Side For Indmar OEM Indmar 4953401
Sold Out
Indmar 6.0L Manifold Kit with Clamps & Gasket PORT SIDE with CAT 49-53401 Indmar Marine Engines 6.0L Manifold Kit with Clamps & Gasket.Port Side Chevrolet...
OBDM Lamp Only - No Hardware OEM R179009
OBDM Lamp Only - No Hardware OEM R179009
$138.04
OBDM Lamp Only - No Hardware OEM R179009
$138.04
OBDM Lamp Only No Hardware OEM R179009 Original PCM FOR LAMP AND HARDWARE - CLICK HERE FOR PART NUMBER RK179009
Volvo Penta Center Rise Exhaust Elbow Barr Marine OMC-20-913784
Volvo Penta Center Rise Exhaust Elbow Barr Marine OMC-20-913784
$243.72 $326.00
Volvo Penta Center Rise Exhaust Elbow Barr Marine OMC-20-913784
$243.72 $326.00
Direct replacement riser for many Volvo Penta & OMC marine engines with center rise exhaust manifolds. Barr OMC exhaust riser elbow Fits Volvo Penta and...
Muffler Mastercraft - 3.0" Offset Inlet/Outlet 17" OAL OEM 252019
Muffler Mastercraft - 3.0" Offset Inlet/Outlet 17" OAL OEM 252019
Sold Out
Muffler Mastercraft - 3.0" Offset Inlet/Outlet 17" OAL OEM 252019
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...
Gasket Exhaust Manifold To Head GM V-6 - 18-2909-9
Gasket Exhaust Manifold To Head GM V-6 - 18-2909
$22.94 $23.89
Gasket Exhaust Manifold To Head GM V-6 - 18-2909-9
$22.94 $23.89
Manifold To Head Gasket - PACK OF 2 Gasket seals exhaust manifold to cylinder head on GM 3.8L & 4.3L CID marine engines. Exhaust manifold...
Manifold Exhaust Indmar Fresh Water Cooled Port Side Indmar 531296FW OEM Indmar
OEM INDMAR - LQ9 MANIFOLD PORT - LEFT SIDE MANIFOLD
$1,119.04 $1,205.12
Manifold Exhaust Indmar Fresh Water Cooled Port Side Indmar 531296FW OEM Indmar
$1,119.04 $1,205.12
OEM INDMAR - LQ9 MANIFOLD PORT - LEFT SIDE MANIFOLD- FRESH WATER COOLED - NOT RAW WATER COOLED! CLICK HERE For Raw Water Cooled part number 531296 FRESH WATER...
Manifold Exhaust Indmar Fresh Water Cooled Starboard Side Indmar 531297FW OEM Indmar
Manifold Exhaust Indmar Fresh Water Cooled <b>Starboard Side</b> Indmar 531297FW OEM Indmar Manifold Exhaust Indmar Fresh Water Cooled <b>Starboard Side</b> Indmar 531297FW OEM Indmar
$1,119.04 $1,205.12
Manifold Exhaust Indmar Fresh Water Cooled Starboard Side Indmar 531297FW OEM Indmar
$1,119.04 $1,205.12
OEM INDMAR - LQ9 MANIFOLD STARBOARD - RIGHT SIDE MANIFOLD-FRESH WATER COOLED - NOT RAW WATER COOLED! CLICK HERE For Raw Water Cooled part number 531297...
Muffler Mastercraft Angled 3-1/2" Offset Inlet At 10° For LY6 Outside Starboard Mufflers 252001
Mastercraft Muffler Silent Master for LY6 Part# 252001 - Outside
$395.00 $635.26
Muffler Mastercraft Angled 3-1/2" Offset Inlet At 10° For LY6 Outside Starboard Mufflers 252001
$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...
Muffler Mastercraft Angled 3-1/2" Offset Inlet At 10° For LY6 Inside Port Muffler 252000
Mastercraft Muffler Silent Master for LY6 - INSIDE Part# 252000 - Inside
$455.05 $635.26
Muffler Mastercraft Angled 3-1/2" Offset Inlet At 10° For LY6 Inside Port Muffler 252000
$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...
Crankshaft Sensor LQ4 - For 6.0L OEM Crusader- PCM Item R020044
Crankshaft Sensor LQ4 - For 6.0L OEM Crusader- PCM Item R020044
$178.20
Crankshaft Sensor LQ4 - For 6.0L OEM Crusader- PCM Item R020044
$178.20
6.0 CRANKSHAFT SENSOR OEM PCM CRUSADER R020044 Replaces Indmar 55-1360
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