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

Gasket Manifold Corner All GM Small Block Catalyst Engines PCM RM0285 Gasket Manifold Corner All GM Small Block Catalyst Engines PCM RM0285
10%
$12.95 $14.36
Manifold Corner CAT Gasket - All years - RM0285 PCM Port & Starboard Manifold to Corner gasket Sold individually
Riser Exhaust 3" PCM Ford - GM OEM PCM R029001
9%
$205.00 $225.15
OEM Pleasurecraft Marine Exhaust Riser 3" Riser - R029001 OEM exhaust riser fits many PCM GM & Ford V8 small block marine engines Generally used...
Drain Hose Exhaust Drain Hose With Coupler Indmar 816058 Drain Hose Exhaust Drain Hose With Coupler Indmar 816058
30%
$35.00 $49.99
Exhaust Drain Hose With Coupler OEM Indmar This is a great kit! Indmar 5/8" Inside Diameter Exhaust Drain Hose Replaces the old style plastic connectors...
Gasket ETX Exhaust Manifold Dump Gasket OEM 76-5006
18%
$11.85 $14.50
GASKET EXHAUST EXT INDMAR OEM Gasket located between the Indmar ETX catalyst aluminum exhaust manifold to stainless steel elbow (dump). Indmar EXTCAT exhaust manifold elbow (dump)...
Gasket Big Block Riser To Manifold Indmar Indmar Original 53-1017
54%
$6.75 $14.80
Exhaust Riser To Manifold Gasket Indmar Big Block Engines - All years SOLD PER SIDE - NEED TWO PER ENGINE Note: If you have FRESH WATER...
Manifold Exhaust EXT CAT Exhaust Aluminum <b> Starboard Side</b> Indmar 53-1400HL OEM Indmar Manifold Exhaust EXT CAT Exhaust Aluminum Port Side Indmar 53-1401HL OEM Indmar
17%
$1,750.00 $2,115.36
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!...
Fitting 1/2" NPT X 5/8" Barb Straight For Manifold Water Drain Hose Indmar 60-5004
47%
$3.99 $7.58
Fitting for exhaust water drain hose - H.O. OEM Indmar 605004 Straight nylon fitting. Size 1/2" threaded X 5/8" hose Fitting used in Indmar cast...
Gasket Manifold All GM Small Block Engines PCM RM0287
7%
$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...
Muffler Supra Moomba Skiers Choice 3.5" Inlet W/60° Angle  - 3" Outlet OEM 100700
12%
$493.99 $561.68
MUFFLER SUPRA MOOMBA SKIERS CHOICE - REPLACES UM-0429 3.5" inlet w/60° angle 3" Outlet OEM 100700 Angled 60 Degree 3-1/2" Inlet With 3" Straight Outlet...
Oxygen Sensor All PCM Engines 4 Wire OEM R020051 Oxygen Sensor All PCM Engines 4 Wire OEM R020051
26%
$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...
Muffler Kit Supra Moomba Skiers Choice 3.5" Inlet W/15° Angle  - 3.5" Outlet OEM 100701
24%
$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...
1994-1999 Muffler Mastercraft - 3.5" Inlet  w/45° Angle  - 3.5" Outlet - SS19/SS190B/190/205 OEM 252026
39%
$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"...
Gasket Manifold All GM Small Block Catalyzed Engines Special Gasket Indmar 556202SPEC
18%
$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...
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
43%
$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
24%
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
6%
$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...
OEM Indmar 49-5180 RE-PLUMB KIT FOR 5.7 EXT CAT
1%
$169.00 $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
38%
$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"...
1990-1993 MUFFLER MASTERCRAFT LIFT - 3" INLINE LIFT 60° ANGLE - 3" OUTLET 24"L OEM 252015
30%
$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
41%
$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...
Riser Exhaust 3.5" PCM H.O. Ford - GM OEM PCM R029011 Riser Exhaust 3.5" PCM H.O. Ford - GM OEM PCM R029011
11%
$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...
Bolt For Exhaust Manifold Stainless Ford All Years PCM RS3945 Bolt For Exhaust Manifold Stainless Ford All Years PCM RS3945
30%
$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...
FITTING NYLON 3/8" NPT X 5/8" BARB 90 DEGREE FOR MANIFOLD WATER DRAIN HOSE INDMAR 605019
36%
$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...
MUFFLER KIT SUPRA MOOMBA SKIERS CHOICE KIT -340 Cayalist Muffler w/(2) Rubber Elbows OEM 107208
15%
$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...
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