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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 Set Thermostat Housing Service Kit Mercruiser GM OEM 18-1989K
Gasket Set Thermostat Housing Service Kit Mercruiser GM OEM 18-1989K
15%
$16.05 $18.79
Gasket Set Thermostat Housing Service Kit Mercruiser GM OEM 18-1989K
$16.05 $18.79
Thermostat housing service kit for late model Mercruiser engines. Includes all gaskets & thermostat sleeve Sierra thermostat service kit Includes gaskets 18-2917, 18-2844 & 18-2554 Service...
Anode Zinc 1/4" NPT Pencil Style Martyr
Anode Zinc 1/4" NPT Pencil Style Martyr
18%
$8.99 $11.00
Anode Zinc 1/4" NPT Pencil Style Martyr
$8.99 $11.00
Replaces Crusader R168005 Pencil Anode Martyr 1/4" NPT Zinc Pencil Anode 1 3/4" Length 1/4" NPT Threads: 5/16-18 UNC Replaces Crusader 10335 Replaces Chrysler 3527906 Replaces...
Gasket Pump Cover For Sherwood Raw Water Pump OEM 10103
Gasket Pump Cover For Sherwood Raw Water Pump OEM 10103
9%
$3.20 $3.51
Gasket Pump Cover For Sherwood Raw Water Pump OEM 10103
$3.20 $3.51
Pump Cover Gasket Sherwood 10103 Seals between the cover plate and the housing of various Sherwood seawater pumps. Fits Older Style Sherwood Interceptor pumps! Sherwood...
Tune Up Kit 302-351 (86 & Prior) Prestolite - Mallory Clip Down Original PCM Item # RP173024
Tune Up Kit 302-351 (86 & Prior) Prestolite - Mallory Clip Down Original PCM Item # RP173024 Tune Up Kit 302-351 (86 & Prior) Prestolite - Mallory Clip Down Original PCM Item # RP173024
20%
$71.27 $88.95
Tune Up Kit 302-351 (86 & Prior) Prestolite - Mallory Clip Down Original PCM Item # RP173024
$71.27 $88.95
1986 & PRIOR V8 CLIP DOWN CAP ORIGINAL PCM Not Aftermarket Breaker Point Standard Ignition Tune Up Kit Includes Cap, Rotor, Points and Condenser. CLIP DOWN TYPE CAPClips...
Impeller Kit Double Flat Shaft Mercruiser Bravo Sierra Brand 18-3016-1
Impeller Kit Double Flat Shaft Mercruiser Bravo Sierra Brand 18-3016-1
11%
$34.00 $37.99
Impeller Kit Double Flat Shaft Mercruiser Bravo Sierra Brand 18-3016-1
$34.00 $37.99
IMPELLER KIT This impeller has a flat on each side of the shaft. Includes Seal! Aftermarket direct replacement impeller for Mercruiser Bravo marine engines with...
Raw Water Pump Crusader PCM Belt Driven Sherwood PCM# RA057031
Raw Water Pump Crusader PCM Belt Driven Sherwood PCM# RA057031
23%
$859.00 $1,118.12
Raw Water Pump Crusader PCM Belt Driven Sherwood PCM# RA057031
$859.00 $1,118.12
Sherwood direct replacement bronze sea water pump for Crusader RA057031 XCLBR 2002 - 2004 P101 & P105  Sherwood Engine Specified sea water pump Pulley driven...
Hose Exhaust Hose Corrugated With Wire 3-1/2 Inch I.D. MPI® Brand 252-3120
Hose Exhaust Hose Corrugated With Wire 3-1/2 Inch I.D. MPI® Brand 252-3120
25%
$35.50 $47.64
Hose Exhaust Hose Corrugated With Wire 3-1/2 Inch I.D. MPI® Brand 252-3120
$35.50 $47.64
Exhaust Hose Corrugated With Wire 3.5" I.D. MPI® Brand Great for tight radius applications. Over a 20° bend. 116-252-3120-1 Sold per foot. We also have Shield's®...
Wire Set Spark Plug 8.1L High Performance Spark Plug Wire Set United Marine UIW-116
Wire Set Spark Plug 8.1L High Performance Spark Plug Wire Set United Marine UIW-116
14%
$137.95 $159.67
Wire Set Spark Plug 8.1L High Performance Spark Plug Wire Set United Marine UIW-116
$137.95 $159.67
8.1L Spark Plug High Performance Wire Set Replaces Crusader/Pleasurecraft Marine RK120019 Replaces Mercury 84-881698 Replaces Volvo Penta 3861295 Replaces Indmar 756003 Replaces Indmar 75-6003
Sending Unit Oil Pressure Dual Station1/8-27 NPT 80 PSI PCM R020006 Sierra® OP24891
Sending Unit Oil Pressure <b>Dual Station</b>1/8-27 NPT 80 PSI PCM R020006 Sierra® Brand OP24891
9%
$42.05 $46.19
Sending Unit Oil Pressure Dual Station1/8-27 NPT 80 PSI PCM R020006 Sierra® OP24891
$42.05 $46.19
Engine oil pressure sending unit sends signal from 1 engine to 2 separate 80 PSI oil pressure gauges. Sierra® Brand OP24891 Dual Oil Pressure Sending...
Flapper Exhaust Protector Valve With Clamp "5 & 6" SIERRA-18-4458 - CLEARANCED
Flapper Exhaust Protector Valve With Clamp "5 & 6" SIERRA-18-4458 - CLEARANCED Flapper Exhaust Protector Valve With Clamp "5 & 6" SIERRA-18-4458 - CLEARANCED
4%
$70.00 $72.99
Flapper Exhaust Protector Valve With Clamp "5 & 6" SIERRA-18-4458 - CLEARANCED
$70.00 $72.99
Exhaust protector valve mounts on the outside of 5 in. & 6 in. exhaust tip to prevent backflow of water into the exhaust. For 5...
Mounting Kit For Aluminum Manifold Indmar Big Block Riser 545 - 502 - 8.1 OEM 49-5141
Mounting Kit For Aluminum Manifold Indmar Big Block Riser 545 - 502 - 8.1 OEM 49-5141 Mounting Kit For Aluminum Manifold Indmar Big Block Riser 545 - 502 - 8.1 OEM 49-5141
31%
$33.32 $47.95
Mounting Kit For Aluminum Manifold Indmar Big Block Riser 545 - 502 - 8.1 OEM 49-5141
$33.32 $47.95
Indmar OEM Mounting Kit Sold Each For Manifold Indmar 53-1278 Big Block 8.1 Aluminum Manifold 545 - 502 - 8.1
Hose Fuel Feed Fill - Vent Hose 1/2 Inch I.D. Type A1 Marine Grade 350-0120
Hose Fuel Feed Fill - Vent Hose 1/2 Inch I.D. Type A1-A2 Marine Grade 250 Feet Roll
35%
$3.49 $5.35
Hose Fuel Feed Fill - Vent Hose 1/2 Inch I.D. Type A1 Marine Grade 350-0120
$3.49 $5.35
Fuel Feed Hose - 1/2" I.D. Sold per foot - Price is per foot 2002 and up Malibu and Supra normally use this hose. 1/2...
Adjustable GM Alternator Strap Pleasurecraft Marine R099009
Adjustable GM Alternator Strap Pleasurecraft Marine R099009
6%
$21.50 $22.96
Adjustable GM Alternator Strap Pleasurecraft Marine R099009
$21.50 $22.96
ALTERNATOR ADJUSTMENT STRAP BRACKET Original PCM R099009 305 & 350 Engines Used with part number R090075 Alternator Bracket - click HERE
4 Inch. Exhaust Tips With Flapper Corsa® Performance 11050
4 Inch. Exhaust Tips With Flapper Corsa® Performance 11050 4 Inch. Exhaust Tips With Flapper Corsa® Performance 11050
4%
$374.00 $389.99
4 Inch. Exhaust Tips With Flapper Corsa® Performance 11050
$374.00 $389.99
Pair of polished stainless steel exhaust tips fit inboard boats with 4 in. exhaust. ONE PAIR 90 degree flange exhaust tips Full 6 inch diameter...
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®
23%
$39.45 $50.99
Switch Ignition Key Switch 3 Position Terminal Off-Run-Start Brass Sierra®
$39.45 $50.99
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...
Seal Rear Velvet Drive Late Model Reduction Drive Oil Seal Velvet Drive OEM R047125
Seal Rear Velvet Drive Output Shaft Seal Reduction Gear 1:52-1 New Style Reduction Unit Oil Seal OEM R047125 Seal Rear Velvet Drive Output Shaft Seal Reduction Gear 1:52-1New Style Reduction Unit Oil SealNew Style Reduction Unit Oil Seal OEM R047175
10%
$16.00 $17.81
Seal Rear Velvet Drive Late Model Reduction Drive Oil Seal Velvet Drive OEM R047125
$16.00 $17.81
New Style Reduction Unit Oil Seal 1.52-1 Output Shaft Seal Replaces Crusader 1012766 and 25618 Replaces Pleasurecraft R047125 Replaces Velvet Drive 1000-044017 New Style Reduction...
Aluminum Anti-Siphon Valve 1/4" NPT Thread X 3/8' I.D. Hose Barb Moeller Marine MO-033801-10
Aluminum Anti-Siphon Valve 1/4" NPT Thread X 3/8' I.D. Hose BarbAluminum Anti-Siphon Valve 1/4" NPT Thread X 3/8' I.D. Hose Barb Moeller
23%
$13.00 $16.99
Aluminum Anti-Siphon Valve 1/4" NPT Thread X 3/8' I.D. Hose Barb Moeller Marine MO-033801-10
$13.00 $16.99
Aluminum Anti-Siphon Valve 1/4" NPT Thread X 3/8' I.D. Hose Barb Moeller Marine MO-033801-10 Coast Guard industry standards require anti-siphon protection on all gasoline powered...
Gasket Exhaust Riser Elbow Gasket Crusader CRU-98127
Gasket Exhaust Riser Elbow Gasket Crusader 98127
9%
$15.45 $16.91
Gasket Exhaust Riser Elbow Gasket Crusader CRU-98127
$15.45 $16.91
OEM Gasket seals between manifold, riser, & elbow on Crusader center rise exhaust manifolds. Crusader center rise elbow gasket For Crusader V8 small block 305...
Riser Shim Plate Stainless Steel Crusader 98124A
Riser Shim Plate Stainless Steel Crusader 98124A
4%
$8.95 $9.29
Riser Shim Plate Stainless Steel Crusader 98124A
$8.95 $9.29
OEM Winged pass-thru plate for Crusader raw water cooled engines with center rise exhaust manifolds. Crusader exhaust riser pass-thru plate Stainless steel shim located between...
Exhaust Elbow 4 Inch Center Rise Crusader R029015 CR-20-29015
Exhaust Elbow 4 Inch Center Rise Crusader R029015
14%
$324.00 $378.75
Exhaust Elbow 4 Inch Center Rise Crusader R029015 CR-20-29015
$324.00 $378.75
We also have the High Rise BARR Version click HERE. Crusader exhaust elbow with 4 inch inch hose connection used on the center rise manifold...
Injector Fuel - Indmar OEM Injector 63-6050
Injector Fuel - Indmar OEM Injector 63-6050 Injector Fuel - Indmar OEM Injector 63-6050
7%
$39.00 $42.15
Injector Fuel - Indmar OEM Injector 63-6050
$39.00 $42.15
Indmar OEM Fuel Injector 4 BAR (EV-14) - 636050 OEM Fuel injector used on 5.7L engines with Indmar/E-Control ECMs. 4 BAR (EV-14) fuel injector.  Injector...
Rear Main Seal 351 Right Hand One Piece 1983 Up OEM R047041A
Rear Main Seal 351 Right Hand One Piece 1983 Up OEM R047041A Rear Main Seal 351 Right Hand One Piece 1983 Up OEM R047041A
44%
$61.40 $109.99
Rear Main Seal 351 Right Hand One Piece 1983 Up OEM R047041A
$61.40 $109.99
Seal Rear Main 351 Right Hand One Piece OEM R047041A Replaces Indmar 594106 RIGHT HAND ROTATION! For 1983 and up right hand rotation Ford 351...
Mount Stud Trunnion Locking Stud For PCM And Indmar OEM R095020
Mount Stud Trunnion Locking Stud For PCM And Indmar OEM R095020
49%
$3.90 $7.59
Mount Stud Trunnion Locking Stud For PCM And Indmar OEM R095020
$3.90 $7.59
This fits PCM and Indmar motor and transmission mounts and locks the horizontal trunnion in place. Lock washer Part# RS2181 sold separately HERE Nut Part#...
Marine Vapor Lock Pump Kit Indmar - 49-5137
Marine Vapor Lock Pump Kit Indmar - 49-5137
3%
$635.00 $655.98
Marine Vapor Lock Pump Kit Indmar - 49-5137
$635.00 $655.98
Marine Vapor Lock Pump Kit 49-5137 For Indmar EFI Engines With Single Fuel Pump Do not use on engines that already have 2 fuel pumps....
Fuel Filter Quicksilver 35-802893Q01
Fuel Filter Quicksilver 35-802893Q01
29%
$13.49 $18.99
Fuel Filter Quicksilver 35-802893Q01
$13.49 $18.99
Fuel Filter - Quicksilver® is temporarily out of stock on this item with a long backorder. PLEASE CONSIDER THE SIERRA REPLACEMENT BELOW: 18-7844 - CLICK...
Hose Formed Indmar 1-1/4" x 4.5" Long OEM Indmar 81-1102D
Hose Formed Indmar 1-1/4" x 4.5" Long OEM Indmar 81-1102D Hose Formed Indmar 1-1/4" x 4.5" Long OEM Indmar 81-1102D
31%
$13.00 $18.95
Hose Formed Indmar 1-1/4" x 4.5" Long OEM Indmar 81-1102D
$13.00 $18.95
Indmar formed hose Molded hose 1 1/4 inches by 4.5 inches with an approximately 45 degree bend.
Flame Arrestor 5.7 L - 4-Bolt Throttle Body R145027
Flame Arrestor 5.7 L - 4-Bolt Throttle Body R145027 Flame Arrestor 5.7 L - 4-Bolt Throttle Body R145027
3%
$66.63 $68.99
Flame Arrestor 5.7 L - 4-Bolt Throttle Body R145027
$66.63 $68.99
Flame Arrestor 4 Bolt Throttle Body for 5.7L Engine
Fuel Water Separator Filter 10 Micron Short Sierra 18-7944
Fuel Water Separator Filter 10 Micron Short Sierra 18-7944
11%
$9.30 $10.49
Fuel Water Separator Filter 10 Micron Short Sierra 18-7944
$9.30 $10.49
FUEL WATER SEPARATOR FILTER SIERRA 18-7944 Replacement spin-on fuel filter fits many Mercury & Mercruiser marine engines to remove contaminants & water from incoming fuel. Many...
Belt Serpentine 5.7L With Johnson Crank Driven Raw Water Pump PCM Crusader R066039
Belt Serpentine 5.7L With Johnson Crank Driven Raw Water Pump PCM Crusader R066039 Belt Serpentine 5.7L With Johnson Crank Driven Raw Water Pump PCM Crusader R066039
25%
$42.00 $55.99
Belt Serpentine 5.7L With Johnson Crank Driven Raw Water Pump PCM Crusader R066039
$42.00 $55.99
PCM Crusader Serpentine Drive Belt With Modular Raw Water Pump- OEM R066039 BELT,SERPENTINE DRIVE 5.7L PCM/Crusader 5.7 engines only These belts were used around 2016...
Hose Exhaust Hose Hardwall Corrugated With Wire 4 Inch I.D. Shield's Brand Hose 252-4000
Hose Exhaust Hose Hardwall Corrugated With Wire 4 Inch I.D. Shield's Brand Hose 116-252-4000-1
18%
$45.00 $54.84
Hose Exhaust Hose Hardwall Corrugated With Wire 4 Inch I.D. Shield's Brand Hose 252-4000
$45.00 $54.84
Exhaust Hose Hardwall WITH Wire - Corrugated 4" I.D. SHIELD'S Brand 116-252-4000-1 4 in. Corrugated Marine Exhaust Hose 16 inch bending radius Price per foot Wet exhaust connections...
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...
Spud For Remote Oil Filter Original Indmar 601021
Spud For Remote Oil Filter Original Indmar 601021
19%
$3.45 $4.25
Spud For Remote Oil Filter Original Indmar 601021
$3.45 $4.25
ORIGINAL INDMAR REMOTE OIL FILTER SPUD 60-1021 For the Remote Oil Filter Locator, order part number 53-1091E HERE.
Items 449 to 480 of 1354 total