HOLIDAY ALERT

We will be closing at 12 PM EST on Friday, April 18th, in observance of Good Friday and Easter.
Any orders placed after this time will be processed on Monday, April 21st.
Have a happy Easter weekend!

Weather Closure Alert

Due to severe weather, our White House, Tennesee location will be closed Wednesday the 19th.

All shipments from this location will resume on Thursday the 20th. Thank you for your patience!

WE WANT TO HEAR FROM YOU!

We strive to make improvements that make it easier to serve your boating needs.
We’d like to know more about you and how we can do the best job possible for you.
Please take the time to complete this brief 3-5 minute survey to help us serve you better.

FREE Ground Shipping on Orders over $100!  Exceptions apply - see details.

Toggle Nav
  • Sign In
  • Create an Account
My Cart
Search
Menu
Account
Settings
Inboard & I/O Engine Parts

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. Enjoy free ground shipping on qualifying orders so your vessel is ready for adventure.

Inboard & I/O Engine Parts

Items 13-24 of 3254

Set Descending Direction
View as List Grid
Page
  1. Barr Marine FM-1-83 Ford Small Block Exhaust Manifold - 302 & 351
    302 & 351 Ford Small Block Exhaust Manifold | Barr FM-1-83
    BARR-FM-1-83
    Qty In Stock: 41
    Brand: Barr Marine
    Cast iron center rise exhaust manifold fits Ford 302 & 351 CID marine engines. Learn More
    MSRP: $577.00 $379.47
    Add to Wishlist
  2. 3.0L 4 Cylinder Delco EST Electronic Distributor Kit
    3.0L 4 Cylinder Delco HEI Distributor Kit | MMD Powerline 109134
    MMD-109134
    Qty In Stock: 7
    Brand: MMD Powerline
    Delco HEI Distributor Kit 4 Cylinder Learn More
    MSRP: $908.85 $379.07
    Add to Wishlist
  3. Small Image
    Spin-On Fuel Filter | Volvo Penta 3862228
    VOLVO-3862228
    Qty In Stock: 618
    Brand: Volvo Penta
    Replacement OEM Volvo Penta 6 micron fuel water filter fits many different Volvo Penta gasoline marine engines. Learn More
    MSRP: $16.80 $15.27
    Add to Wishlist
  4. Delco EST Replacement Distributor Kit - United Ignition Wire - GMESTV8
    GM V8 EST Electronic Distributor Kit | United Marine GMESTV8
    UIW-GMESTV8
    Qty In Stock: 323
    Brand: United Motor Products
    Electronic spark timing EST style replacement ignition kit for GM small and big block marine engine applications. Learn More
    MSRP: $838.65 $566.50
    Add to Wishlist
  5. Sierra 116-254-4000-1 4 inch Exoflex Exhaust/Water Hose, sold per foot
    4 inch Exoflex Exhaust/Water Hose, sold per foot | Sierra 116-254-4000-1
    SIERRA-116-254-4000-1
    Qty In Stock: 47
    Brand: Sierra
    Features a corrugated exterior and is internally reinforced by wire to prevent hose from collapsing. Primarily used for connections in marine wet exhaust and engine water circulation applications, especially where significant bends of hose are required. Designed to resist heat, exhaust gases, ozone, antifreeze, and saltwater Learn More
    MSRP: $37.68 $31.40
    Add to Wishlist
  6. MMD 807151A8 Mercruiser Sea Water Pump with V-Belt Pulley
    Mercruiser Sea Water Pump with V-Belt Pulley | MMD 807151A8
    MMD-807151A8
    Qty In Stock: 7

    Replacement sea water pump with v-belt pulley used on big 7.4 liter and 8.2 liter Mercruiser engine models with fuel pump mount

    Learn More
    MSRP: $557.95 $446.36
    Add to Wishlist
  7. Indmar 12-Blade Run-Dry Blue Impeller - Globe 100J
    100J Blue Run-Dry Impeller | Globe 01-12-1100
    GLOBE-01-12-1100
    Qty In Stock: 9
    Brand: Globe

    Globe self-lubricating impeller is designed to provide triple the service life of comparable rubber, nitrile or neoprene impellers. 100J Blue Impeller 12 pt Spline 12 Blade.

    Learn More
    MSRP: $99.00 $60.00
    Add to Wishlist
  8. Sierra 116-254-3000 Exoflex Hose
    3 inch Exoflex Exhaust/Water Hose, sold per foot | Sierra 116-254-3000-1
    SIERRA-116-254-3000-1
    Qty In Stock: 138
    Features a corrugated exterior and is internally reinforced by wire to prevent hose from collapsing. Primarily used for connections in marine wet exhaust and engine water circulation applications, especially where significant bends of hose are required. Designed to resist heat, exhaust gases, ozone, antifreeze, and saltwater Learn More
    MSRP: $24.59 $23.21
    Add to Wishlist
  9. Small Image
    Mercruiser 7.4L & 8.2L Delco EST Tune Up Kit | MMD Powerline M74DELCO
    MMD-M74DELCO
    Qty In Stock: 22
    Brand: MMD Powerline

    Comprehensive kit includes the items needed to tune-up Mercruiser 7.4L and 8.2L GM engines with Delco EST ignition system.

    Learn More
    MSRP: $181.53 $165.03
    Add to Wishlist
  10. Small Image
    Fuel Filter Element & Canister | Sierra 18-7861
    SIERRA-18-7861
    Qty In Stock: 63
    Brand: Sierra
    Aftermarket replacement fuel filter & canister used on many early model Crusader & OMC marine engines. Learn More
    MSRP: $37.49 $24.98
    Add to Wishlist
  11. Sierra 18-1953-2 Mercruiser GM Small Block Exhaust Manifold
    Mercruiser GM Small Block Exhaust Manifold | Sierra 18-1953-2
    SIERRA-18-1953-2
    Qty In Stock: 122
    Brand: Sierra
    Center rise exhaust manifold fits Mercruiser GM 5.0L & 5.7L CID marine engines. Learn More
    MSRP: $232.19 $205.15
    Add to Wishlist
  12. Volvo 21700445 Volvo Penta Impeller Kit
    Volvo Penta Impeller Kit | Volvo 21700445
    VOLVO-21700445
    Qty In Stock: 301
    Brand: Volvo Penta
    OEM Volvo Penta impeller kit that fits a variety of Volvo Penta gasoline marine engines with crankshaft mounted pumps. Learn More
    MSRP: $91.20 $79.73
    Add to Wishlist

Items 13-24 of 3254

Set Descending Direction
View as List Grid
Page
My Wish List
Last Added Items
  1. Add to Cart
    Remove This Item
Go to Wish List
You have no items in your wish list.
© 2025 Marine Parts Source. All Rights Reserved.