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.

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.

Scroll down for all Exhaust Related Items

Fitting Nylon 3/4" NPT X 1" Barb 90 Degree For Manifold Water Drain Hose Indmar 605012 Fitting Nylon 3/4" NPT X 1" Barb 90 Degree For Manifold Water Drain Hose Indmar 605012
27%
$7.25 $9.95
90 Degree Elbow Nylon Fitting For Indmar Manifolds OEM Indmar 605012 Note: The 3/4" NPT actually measures at 1" If you need both 90° Nylon Elbows, order...
Gasket Exhaust Riser To Manifold PCM Ford - Replaces RM0002 Sierra 18-0677-1 Sold Each Gasket Exhaust Riser To Manifold PCM Ford - Replaces RM0002 Sierra 18-0677-1 Sold Each
13%
Sold Out
GASKET EXHAUST RISER TO MANIFOLD FORD + SOLD AS A 2 PACK NOW. SINGLE SIERRA® GASKETS ARE NO LONGER AVAILABLE - CLICK BELOW FOR A 2...
Fitting 1/2" NPT X 1" Barb 90 Degree For Manifold Water Drain Hose Indmar 605085
18%
$4.79 $5.86
Fitting for exhaust water drain hose - OEM Indmar 605085 NOTE! ALTERNATIVE TO THIS 60-5085 IS THE BRASS FITTING 60-5104 HERE 90 degree nylon fitting....
Gasket Exhaust Riser To Manifold PCM Ford - Replaces RM0002 Sierra Two Pack 18-0677-9 Gasket Exhaust Riser To Manifold PCM Ford - Replaces RM0002 Sierra Two Pack 18-0677-9
2%
$16.50 $16.80
GASKET EXHAUST RISER TO MANIFOLD FORD + PAIR SOLD 2 PER PACK FITS PCM FORD AND PCM GM SMALL BLOCKS ONLY!The blocked water passage goes towards the...
Gasket Riser Indmar Ford & GM 53-2010 Gasket Riser Indmar Ford & GM 53-2010
48%
$6.75 $12.95
Riser Gasket All Ford & GM Small Block Engines - All years SOLD PER SIDE - NEED TWO PER ENGINE! OEM Indmar 532010 Gasket Replaces Osco...
Manifold Elbow Kit Nylon EXT Manifold Replaces Old 1 Piece T-Fitting Indmar OEM 605012_605019 - 60-5084K
23%
$12.95 $16.89
Nylon EXT Indmar Manifold Elbow Kit - Original Indmar Replaces old 1 piece T-fitting Part# 60-5084 that is no longer available. The Kit includes: Two...
Gasket Manifold To Head - Ford - 351-302 OEM# PCM-RM0007
41%
$4.99 $8.49
GASKET MANIFOLD TO HEAD FORD Original PCM RM0007 Gasket seals between exhaust manifold and cylinder head on Ford small block marine engines PCM exhaust manifold gasket...
Manifold Exhaust PCM Ford 302 & 351 Small Block Engines PCM-R028001
13%
$320.00 $365.95
OEM Pleasurecraft Marine center rise exhaust manifold fits Ford 302 & 351 CID marine engines. SOLD EACH! PCM exhaust manifold For Pleasurecraft Marine Ford V8...
Knock Sensor GM 5.7 And 5.0L OEM Item PCM - Indmar R020027
7%
$79.00 $84.95
Fits ALL GM 5.7L, 5.0L TBI, MPI 1994 up through 2005 Indmar and 2007 PCM Engine sensor sends a signal to the ECM when abnormal ignition...
Flapper Exhaust Protector Valve 3 Inch
11%
$28.05 $31.49
3 Inch Exhaust Flapper Protective Valve With Stainless Steel Clamp Exhaust protector valve mounts on the outside of 3 in. exhaust tip to prevent backflow...
Manifold Elbow Brass 1/2 " X 1" NPT  90 Degree Hose Barb Indmar 60-5104
37%
$25.00 $39.95
Fitting for exhaust water drain hose OEM Indmar 605104 NOTE! This Brass Fitting Replaces The Indmar 60-5085 fitting! Indmar Catalyst Manifold 90 degree brass fitting. Size...
2000-2006 Muffler Mastercraft - 3.5"  Inlet w/40° Angle - 3.5" Outlet - SS19/PS190/205/209 OEM 252033 2000-2006 Muffler Mastercraft - 3.5"  Inlet w/40° Angle - 3.5" Outlet - SS19/PS190/205/209 OEM 252033
28%
$545.00 $758.36
MUFFLER MASTERCRAFT 2000 - 2006 3.5" Inlet with 40° Angle 3.5" outlet SS19/PS190/205/209/PS197 OEM 252033 Overall Length is approximately 26" Barrel Diameter is approximately 5-1/8"...
Riser Mounting Kit All 5.7L - 350 & 351 Engines Indmar OEM 49-5006
52%
$12.00 $24.95
Original Equipment Indmar Riser Complete Mounting Kit  OEM Indmar 49-5006 Mounting hardware for one Indmar 350/351 cast iron exhaust riser (3 1/2") Includes all bolts, washers, and...
2008-2012 Muffler Mastercraft - 3-1/2" Inlet 30° Angle - 3-1/2" Outlet 80° Angle Vertical X1 OEM 252023
34%
$539.00 $811.46
 2008-2012 MUFFLER MASTERCRAFT SILENT MASTER OPT. 3.5" Inlet w/80° angle - 3.5" outlet  w/30° angle Vertical X1/200/215/230/235/245/255 Euro Part# 252023 Manufactured by Ultra Marine. Easy...
Fitting 3/4" NPT X 5/8" Barb 90 Degree For Manifold Water Drain Hose Indmar 605021
41%
$5.29 $8.99
Fitting for exhaust water drain hose - OEM Indmar 90 degree nylon fitting. Size 3/4" threaded X 5/8 hose Fitting used in Indmar cast iron...
Muffler Interchangeable Angled 3-1/2 Inch 60° O.D. Inlet With 3 Inch O.D. Straight Outlet 26 Inches Long OEM UM-0429
27%
$338.00 $465.27
Ultra Marine - Muffler Aftermarket Interchangeable UM-0429 Angled 60 Degree 3-1/2" Inlet With 3" Straight Outlet 26" Tip to Tip 3-1/2" Inlet - 3" Outlet...
Pipe Plug Exhaust Manifold Drain Plug 3/4 Inch NPT PCM Or Indmar RS3533 Pipe Plug Exhaust Manifold Drain Plug 3/4 Inch NPT PCM Or Indmar RS3533
30%
$3.50 $4.99
Pipe Plug for Exhaust Manifold for Indmar OR PCM 3/4" NPT - Counter Sunk Square Head - Older style For the "newer" style BRASS, order item# RS3533A...
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
44%
$349.00 $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"...
OEM Indmar one piece exhaust manifold with catalyst exhaust element for Vortec 5.7L Monsoon & 6.2L Hammerhead marine engines.
17%
$1,595.00 $1,924.80
IF YOU CAN ADD ONE TO YOUR CART, WE HAVE ONE LEFT. IF THIS ITEM SHOWS SOLD OUT, WE ARE WATING TOO. THANK YOU MUCH!...
Exhaust Elbow Mounting Kit With Bolts PCM Ford - Riser To Manifold 18-8504
11%
$15.09 $16.89
PCM FORD EXHAUST ELBOW MOUNTING KIT - RISER TO MANIFOLD Includes gasket & mounting bolts For Pleasurecraft Marine 302 & 351 CID exhaust risers Includes...
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