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  • Products & ServicesParts & Components
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      • Cummins Custom Exhaust Flange Kit
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      • SMX Exhaust Turbo Flange for Yanmar 6LPA
      • SMX Exhaust Turbo Flange for Yanmar 6LYA 370/440
      • SMX Exhaust Turbo Flange for Volvo D4
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      • SMX Back to Back Marine Exhaust Flange Kit
      • Custom Marine Exhaust Design
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        • SmartCraft Displays
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      • Analog Instrument Panels
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    • Seaboard Specialty Kits
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      • ZF220A & ZF220V Shift Valve Lever Repair Kit
      • Borg Warner Velvet Drive to Cummins 5.9 HD Adapter Kit
      • Cummins Custom Exhaust Flange Kit
      • Fuel Cooler Removal Kit
      • SMX Mechanical Oil Pressure Gauge Kit
    • General Boat Parts
      • Split Hub Propeller Shaft Couplings
      • Cutlass Bearings
      • Fittings & Extras
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        • Custom Power Take Off (PTO) Fabrication
        • Custom Engine & Stringer Brackets
    • Used Parts / Classifieds
  • Marine TransmissionsZF & DMT Transmissions
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Product Search

Seaboard Marine stocks a full-line of Cummins Marine Diesel Engines, ZF Marine Transmissions, and Specializes in Parts & Service for Cummins Marine.

Seaboard Marine Featured Products

SMX 1 7/8" Hose Universal Seawater Pump
SMX 1 7/8" Hose Universal Seawater Pump
SMX 1 7/8″ Hose Universal Seawater Pump
not rated $595.00 Add to cart
SMX 1.5" 003 Seawater Pump
SMX 1.5" 003 Seawater Pump
SMX 1.25″ Hose Universal Seawater Pump
not rated $495.00 Add to cart
SMX 12V Electric Clutch
SMX 12V Electric Clutch
not rated $345.00 Add to cart
SMX 1.5 Universal Wash Down Water Pump
SMX 1.5 Universal Wash Down Water Pump
SMX 1.5″ Universal Wash Down Water Pump
not rated $395.00 Add to cart
Cummins QSM11 Marine Turbo to Exhaust Manifold Stud & Nut Kit
Cummins QSM11 Marine Turbo to Exhaust Manifold Stud & Nut Kit
not rated $65.00 Add to cart
Cummins Marine Turbo to Exhaust Manifold Stud & Nut Kit
Cummins Marine Turbo to Exhaust Manifold Stud & Nut Kit
not rated $45.00 Add to cart
Cummins QSM11 Exhaust Flange
Cummins QSM11 Exhaust Flange
Cummins QSM11 Custom Exhaust Flange Kit
not rated $225.00 Add to cart
Cummins Marine Powered by QSC 8.3 Decal
Cummins Marine QSC 8.3 Engine Sticker
not rated $8.00 Add to cart
Cummins Marine Powered by QSB 5.9 Decal
Cummins Marine QSB 5.9 Engine Sticker
not rated $8.00 Add to cart
Cummmins 330B Diamond Performance Series Decal
Cummins 330B/370B/450C Diamond Performance Series Engine Decal
not rated $8.00 Select options
SMX Digital Voltage Monitor
SMX Digital Voltage Monitor Faceplates
SMX Digital Voltage Monitor
not rated $19.00 Add to cart
Cummins Marine Diamond Performance Series Engine Sticker
Cummins Marine Diamond Performance Series Engine Sticker
not rated $12.00 Add to cart

Recent Tony’s Tips Articles

Cummins Marine 6BT Fuel Shutoff Solenoid Location Proper Exhaust Spill over point QSB Water in Fuel Sensor Location Bosch Fuel lever tied up for testing QSB 5.9 Fuel connections & Parts-Ver 2.0 Custom manifold is gravity fed with 1.25" ID hose from the forward main fuel tank 30 feet forward of the engines. This manifold feeds 2 x QSM 630's and 2 x 20Kw gensets with #10 hose for the main and #8 hose for the generators ZF Troll valve Safety Switch & Control Lever QSC & QSL9 Pressure test 100psi 100% Genuine Cummins complete Aftercooler for Cummins B Series Engine Understanding the 6BTA 5.9 Combo Block Manifold QSM11 Wet Exhaust Riser Test Port Location (EGT, Pyro) New Turbo vs 27000 hours turbo Always On Power Studs for SmartCraft v1.0 Engines Oil cooler with transducers location Boost Fitting Locations for 6CTA 450 Diamond Cummins 450 Diamond Removing and Installing the QSM11 Exhaust Manifold QSB HPCR Fuel Rail Sensor Blowby Chart for Mid-Range Marine Diesel Engines Aftercooler Condensation Drain Port Typical Signs of a Sherwood Seawater or Raw Water Pump Leakage A Clogged aftercooler does this Cummins Fuel Shutoff Solenoid Wiring What causes white smoke? Cummins QSB 380 in a 27 ft Farallon - 4" dry to 5" mixer. Under 25" H2O at WOT. The fitting/plug shown is the best place to bleed air from your "Quantum" fuel system. New style Belt Wrap on early 4BT/6BT Cummins .070" clearance between the edge and that bolt-hole? Use the thinner O-ring Propeller Disc Area Ratio (DAR) Starter & Mag Switch Wiring Cummins SmartCraft DieselView Display QSB 6.7 Fuel GPH vs BHP Proper Relay Mounting QSB WIF Plug Location QSB 24SI Alternator Cummins 4BT Turbo at 33000+ hours — from a 47Kw Custom SMX generator Remember, small holes to small holes and large holes to large holes. It is possible to flip the gasket the wrong way which will result in serious leakage

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What We Do

Seaboard Marine delivers “Guaranteed Better Than Factory” Performance, Parts, Design, and Engineering for Cummins and other Marine Diesel applications. We’ve been serving the local Ventura and Oxnard areas of California since 1980 as a custom boat builder, repower specialist, designer, and supplier of equipment to builders, commercial fishermen, and recreational users. Seaboard also ships Internationally every day to support the Cummins Marine brand across the globe.

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Repower Projects

"Windstone" is owned by David Sharabani of Santa Maria, California. He's an electrical contractor that is trying to find time to go fishing now that he's got a serious fish machine that can run with the best of them! The vessel has the typical " Seaway" look. A little commercial, but still has those lines that appeal to so many. Don't know if you are aware of the Seaway heritage, but just about all of the "Baywatch" boats, here in So. Cal. were made by them...... Widgeon Repower SHOOTER The 4 Year 40 Knot 31 Foot Bertram Odyssey

Featured Articles

  • A "Low Hour" Engine “Marine Age” the REAL age of a Marine Diesel Engine January 10, 2018
  • Propellers Move Boats, Engines Just Turn Them January 8, 2018
  • Cummins QSB 380 in a 27 ft Farallon - 4" dry to 5" mixer. Under 25" H2O at WOT. Everything you Need to Know About Marine Exhaust Systems January 6, 2018
  • Cummins QSB 5.9 Continuous Duty – A Different Perspective January 4, 2018
  • Understanding Low Power Troubleshooting January 2, 2018
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