
M4503 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $20.00 | Condition is Used, M4503 Fuel Pump Omc, FREE SHIPPING | 99.7% |
![]() | $20.00 | Condition is Used, M4503 Fuel Pump Omc, FREE SHIPPING | 99.7% |



The OMC M4503 Fuel Pump is a high-performance, reliable solution for marine engine applications. This fuel pump is designed to deliver a consistent and efficient fuel supply to your engine, ensuring optimal performance and longevity.
The OMC M4503 Fuel Pump features a robust, corrosion-resistant construction, with its housing and impeller made of marine-grade materials. This ensures that the pump can withstand the harsh marine environment, including saltwater, UV radiation, and extreme temperatures. The pump's sturdy design also includes a durable, viton-sealed diaphragm, which provides a leak-free operation and maintains its performance even under high pressure.
The OMC M4503 Fuel Pump has a flow rate of 75 GPH (Gallons Per Hour) at 3 PSI (Pounds per Square Inch) and a maximum operating pressure of 9 PSI. This makes it suitable for a wide range of marine engines, including outboard motors, inboard engines, and even some high-performance applications.
The pump's operation is controlled by a built-in, adjustable pressure regulator, which allows you to fine-tune the fuel pressure to meet your engine's specific requirements. This feature ensures that the engine gets the right amount of fuel, preventing both fuel starvation and flooding.
Installation of the OMC M4503 Fuel Pump is straightforward, thanks to its easy-to-use, bolt-on design. It is compatible with both vertical and horizontal mounting configurations, making it a versatile choice for various marine engine installations. The pump also comes with a 1/2" NPT (National Pipe Thread) inlet and outlet, which allows for easy connection to your engine's fuel system.
In conclusion, the OMC M4503 Fuel Pump is a reliable, high-quality, and versatile fuel pump designed to meet the demands of marine engine applications. Its robust construction, efficient performance, and adjustable pressure regulator make it an excellent choice for boat owners and engine enthusiasts seeking a dependable and long-lasting fuel pump solution.
Pros of buying OMC M4503 Fuel Pump:1. Reliable Performance: The OMC M4503 fuel pump is known for its reliable performance, ensuring consistent fuel delivery to the engine.
2. Durable Design: The pump is built to withstand harsh marine environments, making it a suitable choice for boats and other watercraft.
3. Easy Installation: The OMC M4503 fuel pump is relatively easy to install, saving time and effort during the installation process.
4. High-Quality Construction: The pump is made of high-quality materials, ensuring it lasts for a long time and provides efficient fuel delivery.
Cons of buying OMC M4503 Fuel Pump:1. Price: The OMC M4503 fuel pump is on the higher end of the price range, which may be a drawback for budget-conscious customers.
2. Limited Compatibility: While the pump is compatible with a wide range of engines, it may not be suitable for all boat models. It's essential to check the compatibility before making a purchase.
3. Availability: Depending on the location, the OMC M4503 fuel pump may not be readily available in local stores, requiring online ordering or special orders.
Conclusion:The OMC M4503 fuel pump offers reliable performance, durability, and easy installation, making it a great choice for boat owners who prioritize fuel efficiency and engine performance. However, the higher price and limited compatibility may be a drawback for some customers. If budget is not a concern and the pump is compatible with your engine, the OMC M4503 fuel pump is a worthwhile investment.
Recommendation:If you're in the market for a new fuel pump for your boat, the OMC M4503 is a great option. It's important to consider the pros and cons before making a purchase and ensure that the pump is compatible with your engine. With its reliable performance and durable design, the OMC M4503 fuel pump is a solid investment for any boat owner.
Details:
specifications inboardfuel:
- brand: Omc
- mpn: M4503
- part type: Fuel Pump
offer inboardfuel:
- started: april 17, 2024
- availability: in stock
- in stock #: 2
- sold #: 30
- price: $20.00
- item condition: Used
- options: ship-to-home
shipping inboardfuel:
- carrier: usps
- class: standard
- type: fixed
- service: usps ground advantage
- transit: 3-6 days
returns inboardfuel:
- policy: no returns
seller inboardfuel:
- city: spirit lake, idaho
- # reviews: 551
- rating: 99.0%
general inboardfuel:
- category: Boat Parts > Inboard Engines Components > Intake Fuel Systems
payments inboardfuel:
- wallet: apple-pay
- credit card: visa
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