OMC Timer Base Sensor Nos 0581251

( Brand: Omc ), ( Part Type: Timer Sensor ), ( Warranty: 30 Days ), ( Manufacturer Part Number: 581251 ), ( Country Of Origin: United States )

Review OMC New Johnson Evinrude Timer Base Sensor Assy Genuine Oem Nos

The OMC 581251 Johnson Evinrude Timer Base Sensor is an essential component for the proper functioning of your marine engine's ignition system. This sensor plays a crucial role in providing accurate timing information to your engine, ensuring optimal performance and fuel efficiency.

The sensor is designed with a robust and durable construction, making it ideal for the demanding marine environment. It features a high-quality ceramic element that ensures precise and consistent resistance readings, even after prolonged exposure to saltwater and extreme temperatures.

The OMC 581251 sensor is a replacement for the original equipment manufacturer (OEM) part, ensuring a perfect fit and function in your engine. It is engineered to meet or exceed the specifications of the original sensor, providing you with the peace of mind that comes with using a genuine OEM replacement part.

This sensor is designed to work with the Johnson Evinrude 2-stroke outboard engines, specifically those that use a timing system based on a timer and a crankshaft position sensor. It is important to note that this sensor is not compatible with 4-stroke outboard engines or engines using a different timing system.

The installation of the OMC 581251 sensor is relatively straightforward and can be done by following the instructions provided in your engine's service manual. It is recommended that you consult with a certified marine technician or your engine dealer if you have any doubts or concerns about the installation process.

In summary, the OMC 581251 Johnson Evinrude Timer Base Sensor is an essential replacement part for your marine engine's ignition system. It is designed with a robust and durable construction, ensuring precise and consistent resistance readings even in harsh marine environments. This sensor is engineered to meet or exceed the specifications of the original sensor, providing you with the peace of mind that comes with using a genuine OEM replacement part.

The OMC (Outboard Marine Corporation) 581251 Johnson Evinrude Timer Base Sensor is an essential component for the proper functioning of your Evinrude outboard engine's fuel delivery system. This sensor monitors the engine's running time and sends the data to the engine's fuel control module to ensure the correct fuel mixture is delivered. Here are some pros and cons of purchasing this sensor:

1. Improved Engine Performance: A faulty or malfunctioning Timer Base Sensor can cause poor engine performance, rough idling, or even engine stalling. Replacing the sensor with a new one can help improve the overall performance of your Evinrude outboard engine.

2. Prevent Engine Damage: A faulty Timer Base Sensor can also lead to engine damage if the fuel mixture is not delivered correctly. Replacing the sensor can prevent costly engine repairs.

3. Easy Installation: The OMC 581251 Timer Base Sensor is relatively easy to install, and most boat owners can do it themselves with basic tools. The sensor is typically located near the fuel pump or in the engine's wiring harness.

4. OEM Quality: The OMC 581251 Timer Base Sensor is an original equipment manufacturer (OEM) part, which means it is made to the same specifications as the sensor that came with your Evinrude outboard engine. Using an OEM part can help ensure proper fitment and function.

1. Cost: The OMC 581251 Timer Base Sensor can be relatively expensive, especially when compared to aftermarket alternatives. However, using an OEM part can help ensure proper fitment and function, which can save you money in the long run.

2. Availability: The OMC 581251 Timer Base Sensor may not be readily available at local marine parts stores, and you may need to order it online. This can add to the wait time before you can install the new sensor.

In conclusion, while the OMC 581251 Johnson Evinrude Timer Base Sensor may come with a higher price tag than aftermarket alternatives, using an OEM part can help ensure proper fitment and function. The sensor's easy installation and potential for improved engine performance and prevention of engine damage make it a worthwhile investment for Evinrude outboard engine owners. If you are experiencing issues with your engine's fuel delivery system, replacing the Timer Base Sensor with a new OEM part is a recommended solution.

Details:

I was a factory certified technician for Johnson/Evinrude all through the 90's. There may be other part numbers that preceded or followed this number. This is a new OEM part, never installed. I also am an instructor at a Technical College in the Marine program.

You can message me a picture of your model /serial number tag and i'verify fitment to application. I've been an outboard technician since 1994, with certifications in Mercury, Yamaha and OMC. New Old Stock OMC Johnson Evinrude Timer Base Sensor Assay 581251 0581251 Genuine OEM.

part #: 581251 prices

• $58.50-$498.97

specifications vesselveep:

• for makes: Johnson, Evinrude, Omc
• brand: Omc
• part type: Timer Sensor
• warranty: 30 Days
• manufacturer part number: 581251
• country of origin: United States

payments vesselveep:

• credit card: Discover
• other
• wallet: Google-pay

offer vesselveep:

• sold: 0
• started: April 2, 2026
• availability: In Stock
• best offers: True
• quantity: 1
• options: Ship-to-home

returns vesselveep:

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

general vesselveep:

• condition: New
• Parts Accessories > Boat Parts > Other

seller vesselveep:

• city: Menomonie, Wisconsin
• # reviews: 524
• rating: 100.0%

shipping vesselveep:

• class: Standard
• service: USPS Ground Advantage
• type: Calculated
• transit: 4-9 Days
• carrier: USPS
• cost: $6.68

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