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ENGINE PARTS

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 several 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 20 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 for sale today.

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Gasket Manifold Exhaust All GM Small Block Exhaust Manifold to Head Gasket 18-2902-1
Gasket Manifold Exhaust All GM Small Block Exhaust Manifold to Head Gasket 18-2902-1
6%
$17.89 $18.99
Gasket Manifold Exhaust All GM Small Block Exhaust Manifold to Head Gasket 18-2902-1
$17.89 $18.99
Gasket seals exhaust manifold to cylinder head on GM V8 small block marine engines. Exhaust manifold gasket For GM V8 283, 305, 307, 327, 350,...
Switch Ignition Key Switch 3 Position Terminal Off-Run-Start Brass Sierra®
Switch Ignition Key Switch 3 Position Terminal Off-Run-Start Brass Sierra® Switch Ignition Key Switch 3 Position Terminal Off-Run-Start Brass Sierra®
15%
$49.45 $58.18
Switch Ignition Key Switch 3 Position Terminal Off-Run-Start Brass Sierra®
$49.45 $58.18
Conventional Off, Run & Start 7/8" Mounting Hole Sierra Marine's replacement engine components are manufactured to meet or exceed OEM requirements. This ignition switch has...
12" For 13" Tank Depth Fuel Tank Sender 316 Stainless Steel KUS-SSL-12
12" Fuel Tank Sender 316 Stainless Steel KUS-SSL-12
20%
$46.75 $58.52
12" For 13" Tank Depth Fuel Tank Sender 316 Stainless Steel KUS-SSL-12
$46.75 $58.52
12" Length for use in a 13" Tank Depth KUS sensors can be used with all gauge brands that have compatible ohms. Made of Stainless...
Gasket Manifold Exhaust To Head - All GM Big Block Indmar CHVA-47-0000
Gasket Manifold Exhaust To Head - All GM Big Block Indmar CHVA-47-0000
26%
$16.95 $22.79
Gasket Manifold Exhaust To Head - All GM Big Block Indmar CHVA-47-0000
$16.95 $22.79
Manifold Exhaust Gasket - GM Big Block - Barr Original Indmar SOLD PER SIDE - NEED TWO PER ENGINE! Replaces Mercruiser 27-46820 Replaces Volvo Penta 3852472 Replaces...
Aluminum Exhaust Riser 8.1L GM Indmar OEM 53-1077
Aluminum Exhaust Riser 8.1L GM Indmar OEM 53-1077
15%
$585.00 $689.98
Aluminum Exhaust Riser 8.1L GM Indmar OEM 53-1077
$585.00 $689.98
Direct Indmar replacement aluminum exhaust riser. Designed for the fuel injected big block 8.1 Liter GM marine engine. Direct Indmar replacement aluminum exhaust riser. Designed...
Pipe Plug 1/2 Inch NPT Brass Pipe Plug Indmar OEM 60-5034
Pipe Plug 1/2 Inch NPT Brass Pipe Plug Indmar OEM 60-5034 Pipe Plug 1/2 Inch NPT Brass Pipe Plug Indmar OEM 60-5034
25%
$6.00 $7.95
Pipe Plug 1/2 Inch NPT Brass Pipe Plug Indmar OEM 60-5034
$6.00 $7.95
1/2 inch NPT pipe plug made of brass Used when replacing your No Longer Available thermostat housing part number 53-1402 with the new style Indmar...
Fuel Filter Quicksilver 35-802893Q01 See Description For Replacement
Fuel Filter Quicksilver 35-802893Q01
$20.99
Fuel Filter Quicksilver 35-802893Q01 See Description For Replacement
$20.99
Fuel Filter - Quicksilver® is temporarily out of stock on this item with a long backorder. 18-7844 - CLICK HERE FOR CORRECT SIERRA REPLACEMENT Fuel/Water...
Anode Zinc Anode Drain Plug Indmar SkiVee V-Drive Transmission Indmar Brand OEM 90-5150
Anode Zinc Anode Drain Plug Indmar SkiVee V-Drive Transmission Indmar Brand OEM 90-5150 Anode Zinc Anode Drain Plug Indmar SkiVee V-Drive Transmission Indmar Brand OEM 90-5150
33%
$64.00 $95.99
Anode Zinc Anode Drain Plug Indmar SkiVee V-Drive Transmission Indmar Brand OEM 90-5150
$64.00 $95.99
For all Indmar engines 2007 and up that are outfitted with the Skivee V-drive transmission. Original Indmar 90-5150 Pencil Anode Drain Plug Anode Zinc For Indmar Drain...
Manifold Exhaust Indmar Raw Water Cooled Port Side Gen 3 Indmar 531296 OEM Indmar
GEN 3 - RAW WATER COOLED - NON CATALYZED 1 PIECE EXHAUST MANIFOLD "L" SERIES CHEVROLET ENGINES PORT SIDE FOR SALT WATER SERIES.
16%
$969.20 $1,149.95
Manifold Exhaust Indmar Raw Water Cooled Port Side Gen 3 Indmar 531296 OEM Indmar
$969.20 $1,149.95
OEM INDMAR - LQ9 MANIFOLD PORT - LEFT SIDE MANIFOLD RAW WATER COOLED - NOT FRESH WATER COOLED! CLICK HERE For FRESH Water Cooled part number 531296FW GEN 3 -...
Tune Up Kit Mercruiser 5.7 Liter Delco EST Tune Up Kit
Comprehensive kit includes everything needed to tune-up Vortec Mercruiser 5.7L engines with Delco EST electronic distributors.
11%
$180.00 $201.67
Tune Up Kit Mercruiser 5.7 Liter Delco EST Tune Up Kit
$180.00 $201.67
Comprehensive kit includes everything needed to tune-up Vortec Mercruiser 5.7L engines with Delco EST electronic distributors. For Mercruiser 5.7 liter 350 cu. in. EFI engines...
Fuel Pressure Regulator Original Crusader - PCM R088003
Fuel Pressure Regulator Original Crusader - PCM R088003 Fuel Pressure Regulator Original Crusader - PCM R088003
5%
$182.05 $192.60
Fuel Pressure Regulator Original Crusader - PCM R088003
$182.05 $192.60
Fuel Pressure Regulator PCM R088003 Fuel Pressure Regulator Maintains the proper fuel delivery pressure at the fuel injectors Replaces Crusader R088003 Replaces GM 17113536
Conversion Kit Pertronix Ignitor II Clip or Screw Down Caps IG-1581LS
Conversion Kit Pertronix Ignitor II Clip or Screw Down Caps IG-1581LS
20%
$199.05 $249.65
Conversion Kit Pertronix Ignitor II Clip or Screw Down Caps IG-1581LS
$199.05 $249.65
PerTronix "Ignitor II" Electronic Ignition conversion kit for EITHER the Prestolite clip/screw down caps. Fits both screw down and clip down caps! Ignition conversion kit...
Mount Assembly Indmar Left Side Hurth Transmission Mount Assembly Complete OEM Indmar 53-5015L
MOUNT ASSEMBLY INDMAR <b>LEFT SIDE</b> TRANSMISSION MOUNT ASSEMBLY COMPLETE OEM 53-1015L
10%
$239.00 $264.98
Mount Assembly Indmar Left Side Hurth Transmission Mount Assembly Complete OEM Indmar 53-5015L
$239.00 $264.98
OEM Indmar transmission mount - Complete LEFT SIDE Complete left side transmission mount (1.5 and V-D) Original Indmar 53-5015L HURTH 630 V TRANSMISSION MOUNT W/BRACKET...
Conversion Kit Pertronix Igniter Prestolite Clip Down Kit IG-91581
CONVERSION KIT PERTRONIX IGNITER PRESTOLITE CLIP DOWN KIT IG-1581
10%
$144.05 $160.35
Conversion Kit Pertronix Igniter Prestolite Clip Down Kit IG-91581
$144.05 $160.35
Pertronix Ignitor Electronic Ignition Conversion Kit 1581 NEW NUMBER IS IG-1581LS - CLICK HERE Upgrades conventional Prestolite V8 clip down cap distributors to breakerless electronic...
Distributor Cap Mallory V8 Flat Cap 18-5375
DISTRIBUTOR CAP MALLORY V8 FLAT CAP
18%
$74.00 $90.35
Distributor Cap Mallory V8 Flat Cap 18-5375
$74.00 $90.35
Crab style cap fits V8 marine engines with Mallory flat cap distributors. Used with 18-5411 Rotor - Click HERE for ROTOR Mallory V8 Flat Distributor...
Gasket Mono Valve Indmar 4 Bolt Gasket For Indmar Mono Valve OEM 76-5004
GASKET MONO VALVE INDMAR 4 BOLT GASKET FOR INDMAR MONO VALVE OEM
21%
$3.91 $4.95
Gasket Mono Valve Indmar 4 Bolt Gasket For Indmar Mono Valve OEM 76-5004
$3.91 $4.95
MONO VALVE GASKET FOR INDMAR MONO VALVE Fits Indmar Monovalve SKU# 55-1391P Original Indmar
Hose Water Hose Soft Wall No Wire - 1-3/4" I.D. X 4 Foot Stick - OEM R045005
HOSE WATER HOSE SOFTWALL NO WIRE 1-3/4" I.D. X 4 FEET OEM PCM BRAND R045005
20%
$48.00 $59.99
Hose Water Hose Soft Wall No Wire - 1-3/4" I.D. X 4 Foot Stick - OEM R045005
$48.00 $59.99
Water Hose Soft Wall No Wire 1- 3/4" Inch Inside Diameter FOUR (4') FOOT STICK NOTE: PCM has been shipping MPI Hose or Shield's Hose when...
SWITCH WATER TEMP SENSOR– 3/8 INCH NPT – INDMAR BRAND 64-5003
SWITCH WATER TEMP SENSOR– 3/8 INCH NPT – INDMAR BRAND 64-5003
29%
$26.95 $37.72
SWITCH WATER TEMP SENSOR– 3/8 INCH NPT – INDMAR BRAND 64-5003
$26.95 $37.72
OEM Indmar Water Temperature Switch Water Temperature Switch – 3/8 inch NPT –  Indmar engines water temperature sensor Product Specs:Brass sensor (Marine) to help avoid corrosion...
Outlet Exhaust 3-1/2" Straight Flange Exhaust No Baffle-Muffler Outlet Stainless Steel No Flapper Needed
Outlet Exhaust 3-1/2" Straight Flange Exhaust <b>No Baffle-Muffler</b> Outlet Stainless Steel No Flapper Needed
20%
$199.00 $249.00
Outlet Exhaust 3-1/2" Straight Flange Exhaust No Baffle-Muffler Outlet Stainless Steel No Flapper Needed
$199.00 $249.00
45° Straight Cut Pipe Exhaust Outlet With Straight Flange 3-1/2" NO BAFFLE! SOLD EACH! 3-1/2" 304 Stainless Steel Straight Thru Hull - NO INTERNAL BAFFLE...
Alternator 75 Amp Mando With 2" Mounting Foot For Serpentine 6 Groove Pulley
ALTERNATOR 75 AMP UPGRADE INDMAR LT1 - LTR REPLACES 55 AMPS WITH 75 AMPS ALTERNATOR 75 AMP UPGRADE INDMAR LT1 - LTR REPLACES 55 AMPS WITH 75 AMPS
13%
$262.55 $301.19
Alternator 75 Amp Mando With 2" Mounting Foot For Serpentine 6 Groove Pulley
$262.55 $301.19
Mando 75 amp marine alternator with 2 in. mounting foot and 6 groove serpentine pulley Fits Mercruiser marine engines too. New 75 amp 12 volt...
Lock Washer 7/16" Stainless Steel PCM RS2181
Lock Washer 7/16" Stainless Steel PCM RS2181
9%
$1.49 $1.64
Lock Washer 7/16" Stainless Steel PCM RS2181
$1.49 $1.64
Lock Washer 7/16" Stainless Steel Washer - Lock 7/16" Replaces Crusader 103322, 120383, 93400000 Replaces Mercury/Mercruiser 13-32993 Replaces Pleasurecraft Marine RS2181 Replaces Velvet Drive 103322...
Bracket Kit Shift Cable Warner Gear Velvet Drives PCM RK090057
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
10%
$44.87 $49.95
Bracket Kit Shift Cable Warner Gear Velvet Drives PCM RK090057
$44.87 $49.95
SHIFT CABLE BRACKET KIT Original PCM RK090057 Fits Velvet Drive 1:1 AND 1.52:1 transmissions Anodized Steel
Belt PCM Serpentine GEN-5 H5 - H6 R066040
Belt PCM Serpentine GEN-5 H5 - H6 R066040 Belt PCM Serpentine GEN-5 H5 - H6 R066040
21%
$62.98 $79.64
Belt PCM Serpentine GEN-5 H5 - H6 R066040
$62.98 $79.64
PCM R066040 Serpentine engine belt PCM Item R066040 53 Inches Long OD PCM Alternator Serpentine For Pleasurecraft Marine 305 and 350 cu. in. engines Used on H5...
Hose Formed Right Hand GM 5.7L Fresh Water Cooled Crank Pump To Heat Exchanger
Hose Formed Right Hand GM 5.7L Fresh Water Cooled Crank Pump To Heat Exchanger
20%
$35.51 $44.56
Hose Formed Right Hand GM 5.7L Fresh Water Cooled Crank Pump To Heat Exchanger
$35.51 $44.56
Formed Hose for Right Hand GM 5.7L Fresh Water Cooled (antifreeze) crank pump to the heat exchanger
2009-2011 Muffler Mastercraft Late 2009 - 2011 - 3.5" Inlet/Outlet- Vertical Port 214V/MX/XS/ex.35 use W/RTP/MCX/LY6 OEM 252062
2009-2011 Muffler Mastercraft Late 2009 - 2011 - 3.5" Inlet/Outlet- Vertical Port 214V/MX/XS/ex.35 use W/RTP/MCX/LY6 OEM 252062
38%
$545.00 $873.26
2009-2011 Muffler Mastercraft Late 2009 - 2011 - 3.5" Inlet/Outlet- Vertical Port 214V/MX/XS/ex.35 use W/RTP/MCX/LY6 OEM 252062
$545.00 $873.26
MUFFLER MASTERCRAFT LATE 2009 - 2011 3.5" inlet/outlet Vertical Port 214V/MX/XS/ex.35 Use W/RTP/MCX/LY6 OEM 252062 MUFFLER-3.5" VERT. PORT LATE '09-'11 214V/MS/XS/ex.35 USE W/RTP/MCX/LY6 CLICK HERE...
2009-2011 Muffler Mastercraft - 4" Inlet w/60° Angle - 3.5" Outlet w/ 80° Angle - Vertical 8.1 Liter 235/245/255/XS OEM 252050
2009-2011 Muffler Mastercraft - 4" Inlet w/60° Angle - 3.5" Outlet w/ 80° Angle - Vertical 8.1 Liter 235/245/255/XS OEM 252050 2009-2011 Muffler Mastercraft - 4" Inlet w/60° Angle - 3.5" Outlet w/ 80° Angle - Vertical 8.1 Liter 235/245/255/XS OEM 252050
40%
$521.64 $873.28
2009-2011 Muffler Mastercraft - 4" Inlet w/60° Angle - 3.5" Outlet w/ 80° Angle - Vertical 8.1 Liter 235/245/255/XS OEM 252050
$521.64 $873.28
MUFFLER MASTERCRAFT 2009 - 2011 4" Inlet with 60° angle 3.5" Outlet with 80° angle Vertical 8.1 Liter 235/245/255/XS OEM 252050 MUFFLER-4 > 3.5 FG...
Exhaust Hardware Ford 302 & 351 1 Side
Exhaust Hardware Ford 302 & 351 1 Side Exhaust Hardware Ford 302 & 351 1 Side
20%
$85.00 $105.99
Exhaust Hardware Ford 302 & 351 1 Side
$85.00 $105.99
OEM Pleasurecraft Marine complete engine set for ONE side of engine. Either side. Includes bolts for 3" & 3-1/2" riser for one side of engine. Includes...
Manifold Exhaust For Indmar Ford 351 - 302 Engines With Mounting Kit & Gasket Indmar BARR FM-1-83
Manifold Exhaust For Indmar Ford 351 - 302 Engines With Mounting Kit & Gasket Indmar BARR FM-1-83
24%
$439.00 $577.00
Manifold Exhaust For Indmar Ford 351 - 302 Engines With Mounting Kit & Gasket Indmar BARR FM-1-83
$439.00 $577.00
Barr Manifold With Install Kit Ford 351 & 302 Engines - All years SOLD PER SIDE - NEED TWO PER ENGINE! Manufactured by Barr. Includes...
Wire Harness Pigtail 12 Inches Male To Female Original PCM# R121002A
Wire Harness Pigtail 12 Inches Male To Female Original PCM# R121002A Wire Harness Pigtail 12 Inches Male To Female Original PCM# R121002A
12%
$37.77 $42.95
Wire Harness Pigtail 12 Inches Male To Female Original PCM# R121002A
$37.77 $42.95
One foot harness extension with 8 prong rectangular male to 8 prong rectangular female connections. R121002A It can be cut in half and spliced to...
Switch Water Temp Alarm Ford-GM-EFI-Water Temperature Switch -1/2 Inch NPT – PCM GT40 And APEX MPI OEM# R020014A
Switch Water Temp Alarm Ford-GM-EFI-Water Temperature Switch -1/2 Inch NPT – PCM GT40 And APEX MPI OEM# R020014A
8%
$64.50 $69.96
Switch Water Temp Alarm Ford-GM-EFI-Water Temperature Switch -1/2 Inch NPT – PCM GT40 And APEX MPI OEM# R020014A
$64.50 $69.96
Water Temperature Switch - 1/2 inch NPT – PCM GT40 & APEX MPI R020014A Activates a buzzer or light when engine temps reach dangerous levels 95...
Alternator 51 Amp GM Mando PCM And Indmar 1/2" V-Belt Pulley OEM RA097006A
Alternator 51 Amp GM Mando PCM And Indmar 1/2" V-Belt Pulley OEM RA097006A Alternator 51 Amp GM Mando PCM And Indmar 1/2" V-Belt Pulley OEM RA097006A
9%
$257.00 $283.34
Alternator 51 Amp GM Mando PCM And Indmar 1/2" V-Belt Pulley OEM RA097006A
$257.00 $283.34
GM Mando Alternator 51 Amp 12 volt OEM RA097006A Replaces the old 51 Amp Style Alternator with a 1/2" pulley! Measure the flat part of...
Ignition Module Delco EST Replaces PCM R116014 Sierra® 18-5107-1
Ignition Module Delco EST Replaces PCM R116014 Sierra® 18-5107-1 Ignition Module Delco EST Replaces PCM R116014 Sierra® 18-5107-1
11%
$137.00 $153.99
Ignition Module Delco EST Replaces PCM R116014 Sierra® 18-5107-1
$137.00 $153.99
Sierra Brand Ignition Module for Delco EST Distributor Delco Ignition Module Sierra ignition module For Delco EST 4, 6, and 8 cylinder distributors Replaces Mercury...
Items 449 to 480 of 1420 total