1. Used Automotive Fuel Pumps & Sending Units Offers
  2. sku: 9700063761859622
  3. YANMAR 729121-51350

YANMAR 729121-51350 Inline Fuel Injection Pump

729121-51350 Yanmar Inline Fuel Injection Pump Parts Used

( Brand: Yanmar ), ( Type: Fuel Pump ), ( Manufacturer Part Number: 729121-51350 ), ( Fuel Type: Diesel )

Review YANMAR Inline Fuel Injection Pump Parts Used

The Yanmar 729121-51350 inline fuel injection pump is a precision engineered component designed to deliver optimal fuel injection for Yanmar marine diesel engines. This fuel pump is an essential part of the engine's fuel system, supplying fuel at the required pressure and volume to the engine's injectors.

The 729121-51350 model is a diaphragm type inline fuel pump, which means that it utilizes a flexible diaphragm to create the pressure needed for fuel injection. This design offers several advantages, including quieter operation, increased durability, and improved efficiency compared to other types of fuel pumps.

The pump housing is made of cast iron, a material known for its superior strength and resistance to corrosion. This ensures that the pump can withstand the rigors of marine environments while providing reliable and consistent fuel delivery. The diaphragm and other internal components are made of high-quality, wear-resistant materials, ensuring long-lasting performance.

The Yanmar 729121-51350 inline fuel injection pump features a compact design, which makes it easy to install and integrate into the engine's fuel system. It is also compatible with various fuel types, including diesel, biodiesel, and bio-ethanol blends, making it a versatile solution for a wide range of applications.

The fuel pump is capable of delivering fuel pressure ranging from 1.5 to 5.5 bar (21.8 to 81.6 psi), depending on the specific engine application. It operates at a speed of approximately 3500 RPM, providing the required fuel volume for smooth and efficient engine operation.

The Yanmar 729121-51350 inline fuel injection pump comes with a built-in fuel filter, which helps to prevent contaminants from entering the fuel system and damaging the engine. It also features a fuel priming function, which ensures that the pump is properly primed with fuel before starting the engine.

In summary, the Yanmar 729121-51350 inline fuel injection pump is a high-performance, reliable, and durable component designed to deliver optimal fuel injection for Yanmar marine diesel engines. Its diaphragm type design offers quieter operation, increased durability, and improved efficiency, while its compact size, compatibility with various fuel types, and built-in fuel filter make it a versatile and convenient solution for marine applications.

Buying a Yanmar 729121-51350 inline fuel injection pump comes with several pros and cons that every potential buyer should consider before making a purchase decision.

Pros:

1. Fuel Efficiency: This fuel injection pump is designed to optimize fuel efficiency by delivering precise amounts of fuel to the engine at the right time. This results in reduced fuel consumption and lower operating costs over time.

2. Improved Engine Performance: The fuel injection system ensures that the engine receives a consistent fuel supply, which helps to improve overall engine performance. This translates to smoother operation, better power output, and reduced emissions.

3. Durability: Yanmar is known for manufacturing high-quality marine engines and components, including fuel injection pumps. The Yanmar 729121-51350 pump is built to withstand the rigors of marine applications and is designed to last for many years with proper maintenance.

4. Easy Installation: The inline design of this fuel injection pump makes it easy to install and integrate with the engine system. It can be installed without the need for complicated modifications or customizations, making it a popular choice among boat owners.

Cons:

1. Cost: The Yanmar 729121-51350 inline fuel injection pump can be more expensive compared to some aftermarket or generic alternatives. However, the investment in a high-quality, reliable fuel injection pump can save money in the long run through improved fuel efficiency and reduced maintenance costs.

2. Limited Compatibility: This fuel injection pump is specifically designed for use with Yanmar marine engines. It may not be compatible with other engine brands or models, so it's essential to ensure that it's the right fit for your specific application before making a purchase.

3. Complex Repair: If the fuel injection pump fails, it may require professional repair or replacement. The cost and complexity of repairing or replacing the pump can be a disadvantage for some boat owners, especially those who prefer to do their own maintenance.

In conclusion, the Yanmar 729121-51350 inline fuel injection pump offers several advantages, including improved fuel efficiency, engine performance, durability, and easy installation. However, it comes with some drawbacks, such as a higher cost, limited compatibility, and potential complexity of repair.

If you are a Yanmar engine owner looking for a reliable fuel injection pump that delivers optimal performance and longevity, the Yanmar 729121-51350 is an excellent choice. However, if you're on a tight budget or prefer a more universal solution, you may want to consider other options before making a decision.

Recommendation:

If you're a Yanmar engine owner and you're looking for a high-quality, reliable fuel injection pump that delivers optimal performance and longevity, the Yanmar 729121-51350 inline fuel injection pump is a great investment. It may come with a higher upfront cost, but the long-term benefits, such as improved fuel efficiency and reduced maintenance costs, make it a worthwhile investment for serious boat owners.

Details:

part #: 72912151350 prices

  • $225.00-$900.00

specifications pumpunite:

  • brand: Yanmar
  • type: Fuel Pump
  • manufacturer part number: 729121-51350
  • fuel type: Diesel

general pumpunite:

  • condition: New
  • Car Truck Parts Accessories > Air Fuel Delivery > Fuel Pumps Sending Units

shipping pumpunite:

  • type: Calculated
  • service: USPS Ground Advantage
  • transit: 5-11 Days
  • carrier: USPS
  • cost: $29.15
  • class: Standard

offer pumpunite:

  • quantity: 1
  • options: Ship-to-home
  • availability: In Stock
  • started: September 4, 2025
  • sold: 0
  • best offers: True

returns pumpunite:

  • paid by: Seller
  • policy: Returns Accepted
  • time: 30 Days

payments pumpunite:

  • other
  • wallet: Google-pay
  • credit card: Diners-club

seller pumpunite:

  • rating: 98.8%
  • city: Elm City, North Carolina
  • # reviews: 2940
type: fuel pump, fuel type: diesel,
category: auto parts > car truck parts accessories > air fuel delivery > fuel pumps sending units, sku: 9700063761859622,

Yanmar 729121-51350 Is Similar To:

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2 offers $225.00–$900.00 USD
  • New – Open box. Offer #1 priced at $900.00 + $0.00 delivery = $900.00* total. FREE SHIPPING
  • Used. Offer #2 priced at $225.00 + $33.30 delivery = $258.30* total. +$33.30 shipping

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