Inboard & I/O Engine Parts
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MerCruiser 4.3L Vortec Thunderbolt Tune Up Kit | MMD Powerline M43TBOLTGENMMD-M43TBOLTGENQty In Stock: 15MSRP: $142.41 $129.47 -
Mercruiser 3.0 Liter Delco EST Tune-Up Kit | MMD Powerline M30LXDELCOESTMMD-M30LXDELCOESTQty In Stock: 23MSRP: $106.31 $96.64 -
1/8 inch NPT Single Station Temperature Sender | Faria F90401FARIA-F90401Qty In Stock: 7MSRP: $26.06 $18.21 -
Aluminum Fuel Shut-Off Valve | EVM S/V 130-3838EVM-S/V 130-3838Qty In Stock: 18MSRP: $27.96 $23.25 -
Prestolite V8 Spark Plug Wire Set | Volvo Penta 3857168VOLVO-3857168Qty In Stock: 7MSRP: $146.00 $128.51 -
Keyed Diesel Ignition Switch | Volvo Penta 3587072VOLVO-3587072Qty In Stock: 5MSRP: $353.00 $337.37 -
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Volvo OMC Exhaust Manifold | Barr OMC-1-3858850BARR-OMC-1-3858850Qty In Stock: 19MSRP: $827.00 $540.28 -
Mallory 4 Cylinder Distributor Cap | Sierra 18-5397SIERRA-18-5397Qty In Stock: 8MSRP: $72.19 $46.06 -
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Ford Gear Reduction Clockwise Marine Starter | Arco 70125ARCO-70125Qty In Stock: 10MSRP: $219.38 $155.79 -
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Mercruiser SB GM V8 Thunderbolt Pre-Vortec Tune-Up Kit | MMD Powerline M57TBOLTMMD-M57TBOLTQty In Stock: 19MSRP: $158.23 $143.85 -
Gen III Cool Fuel Module Kit | Quicksilver 8M0047215QS-8M0047215Qty In Stock: 1MSRP: $1,994.49 $1,879.49 -
F35B-8027 Bronze Raw Water Pump for Westerbeke Generators | Johnson Pump 10-35038-9JP-10-35038-9Qty In Stock: 11MSRP: $428.99 $244.92 -
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Ignition Module O.E. Delco | United Motor Products M-1965AUIW-M-1965AQty In Stock: 5MSRP: $288.66 $226.54 -
F35 Johnson Pump Impeller Kit | Johnson Pump 09-808B-1JP-09-808B-1Qty In Stock: 40MSRP: $44.14 $26.92 -
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GM Big Block Center Rise Exhaust Manifold | Barr CHVA-1-84BARR-CHVA-1-84Qty In Stock: 17MSRP: $629.00 $423.41 -
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Water Pressure Sensor | Quicksilver 71-8M0157742QS-71-8M0157742Qty In Stock: 5MSRP: $209.99 $179.49 -
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5-1/8 inch Heat Exchanger End Cap Gasket | Seakamp SK5500SK-SK5500Qty In Stock: 220MSRP: $8.20 $7.07 -
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Ford Small Block Damper Plate | Pleasurecraft Marine R140001PCM-R140001Qty In Stock: 11MSRP: $339.03 $339.03 -
F6 Extra Flow Crankshaft Pump | Johnson Pump 10-24946-01JP-10-24946-01Qty In Stock: 107MSRP: $325.82 $188.64 -
10W-40 Full Synthetic Marine Engine Oil, Gallon | Volvo Penta 21681795VOLVO-21681795Qty In Stock: 255MSRP: $61.40 $47.24 -
Crank Driven Raw Water Pump | Volvo Penta 21212799VOLVO-21212799Qty In Stock: 39MSRP: $628.00 $542.14 -
Mercruiser & OMC Mechanical Fuel Pump | Recmar REC86246TRECMAR-REC86246TQty In Stock: 4MSRP: $101.99 $90.67 -
Thunderbolt Big Block Spark Plug Wire Set | United Motor Products 102UIW-102Qty In Stock: 16MSRP: $92.67 $65.67 -
Chrysler Small Block Fuel Pump | Sierra 18-7254SIERRA-18-7254Qty In Stock: 6MSRP: $184.99 $120.07 -
Inboard Marine Engine Parts and Accessories
As the largest online dealer of inboard boat parts, Marine Parts Source will help you find the right engine parts you need for any project. We’re here to assist with seasonal maintenance, major repairs and more so you can get back on the water. Use our convenient categories to browse our collection — or if you know the part number you need, enter it into the search bar. From oil and fuel filters to spark plugs, exhaust manifolds, bell housings, starters and alternator belts, we supply boat owners from coast to coast.
You can always count on quality and knowledge when you shop with us. We’re an authorized dealer of the leading OEM and aftermarket performance inboard marine brands, including J&N Electric, Sierra, Arco Marine, Volvo Penta and Crusader. If you have a question, our sales associates have the technical expertise to answer it. Call us toll-free at 866-388-0390 or use our contact form. Enjoy free ground shipping on qualifying orders so your vessel is ready for adventure.
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