ENGINE PARTS

Inboard Boat Motor Parts for Sale

Keep your boat’s engine running smoothly with our high-quality inboard boat motor parts for sale. At My Inboard Marine, we carry many items for your engine including impellers, mufflers, muffler kits, starters, belts, brackets, engine drains, engine mounts, and far more. You can rest assured that we carry all the necessary boat engine parts needed for your marine project. We carry products from the leading manufacturers which include PCM, Indmar, Mercury, and Mercruiser.

My Inboard Marine strives to provide all customers with the best possible solution to their motorboat and motorsport needs. We’ve been in the marine industry for over 30 years, demonstrating we are experts in the boating business. We are committed to serving you!

Shop through our incredible store and purchase our boat motor parts today.

Scroll down for all Engine Items

Belt Alternator V-Belt Marine Power 260515
$23.95 $24.99
Marine Power Alternator V-Belt - alternator belt fits various Marine Power GM small block marine engines. Volvo & Marine Power alternator v-belt For Marine Power...
Hose Formed Indmar Circulation Pump To Thermostat Housing OEM Indmar And PCM 84-5040
$66.00 $71.28
Formed Hose CIRCULATION PUMP TO THERMOSTAT HOUSING OEM INDMAR 84-5040 - This replaces the 84-2001 CONSIDER THE METAL UPGRADE KIT! CLICK HERE FOR 49-5174 Formed...
Dipstick Tube Indmar 5.7 - 350 OEM 55-1059 - 551040
$54.64
Engine Oil Dipstick Tube Indmar 5.7L Original Indmar 55-1040 - REPLACED with Part # 55-1059 Used on all Indmar 5.7L 350's Fits Monsoon, MCX, Carb...
Fuel Water Separator Filter PCM Spin On 2011 And Up OEM R077019 Fuel Water Separator Filter PCM Spin On 2011 And Up OEM R077019
$32.08
FUEL FILTER  WATER SEPARATOR PCM SPIN ON 2011 AND UP R077019 PCM High performance fuel - water separating filter, 90 GPH 10 micron filtration over...
4 Inch ID Blower | Air Vent Hose 4 Inch Inside Diameter White 5 Foot Length Each OEM MPI-400-4000
$4.99 $12.75
Air Vent - Blower Hose - 4" Color WHITE - Sierra Brand This is A FIVE FOOT Length of Hose! Price is per 5 foot...
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
$544.00 $780.12
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"...
Belt Indmar V-Belt With Teeth Ford 351 & GM 454 OEM 72-5015 Belt Indmar V-Belt With Teeth Ford 351 & GM 454 OEM 72-5015
$17.76
V-BELT FORD 351 & GM 454 INDMAR ORIGINAL PART This is an Indmar OEM Belt and not the NAPA 25-7440! Indmar Factory Single Belt Drive...
Hose Fuel Feed 3/8 Inch I.D Low Permeation Shield's Brand - 116-368-0386 Hose Fuel Feed 3/8 Inch I.D Low Permeation Shield's Brand - 116-368-0386
$3.00 $3.07
Fuel Feed Hose - 3/8" I.D. Shield's Brand Low Permeation Sold per foot - Price is per foot Note - Quantity is total length ordered...
Gasket Manifold Corner All GM Small Block Catalyst Engines PCM RM0285 Gasket Manifold Corner All GM Small Block Catalyst Engines PCM RM0285
$14.36
Manifold Corner CAT Gasket - All years - RM0285 PCM Port & Starboard Manifold to Corner gasket Sold individually
Pipe Plug Exhaust Manifold Drain Plug 3/4 Inch NPT PCM Or Indmar RS03533 Pipe Plug Exhaust Manifold Drain Plug 3/4 Inch NPT PCM Or Indmar RS03533
$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...
2008-2012 Muffler Mastercraft - 3-1/2" Inlet 30° Angle - 3-1/2" Outlet 80° Angle Vertical X1 OEM 252023
$525.00 $834.96
 2008-2012 MUFFLER MASTERCRAFT SILENT MASTER OPT. This muffler fits Port & Starboard Sides 3.5" Inlet w/80° angle - 3.5" outlet  w/30° angle Vertical X1/200/215/230/235/245/255 Euro...
Spark Plug Set Ford 351 HO - GT-40 NGK-7060 Set Of 8 Plugs Replaces PCM RP030007 Spark Plug Set Ford 351 HO - GT-40 NGK-7060 Set Of 8 Plugs Replaces PCM RP030007
$44.59 $48.02
NGK Spark Plug Set - Replaces PCM - RP030007 PCM Spark plugs for 351's, GT-40 engines Includes 8 Plugs 285 HP & Up Carbureted Plug gap...
OEM Indmar one piece exhaust manifold with catalyst exhaust element for Vortec 5.7L Monsoon & 6.2L Hammerhead marine engines. Manifold Exhaust EXT CAT Exhaust Aluminum Port Side Indmar 53-1401HL OEM Indmar
$2,120.50
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!...
Muffler Supra-Moomba 104378 Interchangeable Angled 3-1/2 Inch 60° O.D. Inlet 3 Inch O.D. Straight Outlet 34 Inches OEM UM-104378 Muffler Supra-Moomba 104378 Interchangeable Angled 3-1/2 Inch 60° O.D. Inlet 3 Inch O.D. Straight Outlet 34 Inches OEM UM-104378
$395.41 $698.99
Ultra Marine In-Line Silencer (Moomba Direct Drive) The UM-107378 is a high-performance fiberglass silencer designed specifically for marine environments. Utilizing fine fiberglass and highly fire-retardant...
Knock Sensor Adapter Flat Response OEM PCM and Indmar | R095043A Knock Sensor Adapter Flat Response OEM PCM and Indmar | R095043A
$17.00
Adapter For Flat Response Knock Sensor Indmar 2006 & up Indmar and PCM Engines 5.7L and PCM 2008 & up 5.7L & 5.0L Engines with...
Gasket ETX Exhaust Manifold Dump Gasket OEM 76-5006
$11.95 $12.99
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)...
Thermostat 143 Degree PCM Ford 351-302 Raw Water Cooled With Gasket Sierra Brand -18-3671 Thermostat 143 Degree PCM Ford 351-302 Raw Water Cooled With Gasket Sierra Brand -18-3671
$33.00 $36.89
Thermostat used on raw water cooled PCM Ford 302 and 351 cu. in. marine engines Sierra Brand Replaces Pleasurecraft Marine RP026002E Replaces Mallory 9-43154 Fits...
Bushing Transmission Rear Mount Indmar 53-6007 The Old Number Is 53-6004 Bushing Transmission Rear Mount Indmar 53-6007 The Old Number Is 53-6004
$10.95 $15.60
Replacement bushing for Indmar transmission mounts Indmar 53-6007 OLD NUMBER Superseded from 53-6004 Indmar transmission mount bushing 536007 Two required per mount (top and bottom)...
Temperature Sender Water Temp PCM | Indmar | Some PCM GM 1/2 Inch NPT OEM R020003 Temperature Sender Water Temp PCM | Indmar | Some PCM GM 1/2 Inch NPT OEM R020003
$43.35
OEM PCM Ford - GM & INDMAR Ford - GM R020003 Engine temperature sending unit sends signal to temperature gauge 1/2 in. NPT Single Station Temperature Sender...
Gasket PCM And Indmar Lower Thermostat Housing To Intake PCM OEM# RM0121
$8.95 $9.95
GASKET PCM LOWER THERMOSTAT HOUSING TO INTAKE OEM# RM0121 5.0L and 5.7L Thermostat Original Crusader Not Aftermarket Fits Fresh AND Raw Water Cooled Pleasure Craft Marine...
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