Mercury Outboard Serial Number Lookup

Where can I find my Mercury outboard serial number is a question we’re asked all of the time because it is an essential piece of information when ordering parts for your outboard.

For Mercury outboard engines 8hp and higher, your engine serial number (ESN) tag can be found halfway down the transom assembly on the right (starboard) side, just below the engine’s powerhead.

For engines 6hp and lower, you can find your Mercury outboard serial number on the top of the swivel bracket. You may need to tilt the engine up and trim it to the left to see the ESN tag clearly.

We highly recommend you take a picture of your ESN tag and keep the photo on your mobile phone in case the tag becomes unreadable or if you need this information when you’re not near your boat.

**Are you looking for Mercury Outboard parts and products for your specific engine? Check out PartsVu's Mercury Maintenance Parts Library. Common maintenance parts and products are presented by engine model allowing you to easily find the parts you need.**

What About a Mercruiser Serial Number?

On a Mercruiser sterndrive or inboard engine, typically, the tag is on the block near the starter. But, sometimes, it's down by the starter on the engine block, near the flywheel, or on the flame arrestor.

All too often, the ESN tag on a Mercruiser is not the easiest to find, so definitely take a picture and save it on your cell phone.

**Are you looking for Mercruiser parts and products for your specific engine? Check out PartsVu's Mercruiser category page. We've worked to make it as easy as possible to find the parts and products you need.**

Why Do You Need to Know Your Mercury Serial Number?

mercury outboard serial number lookup - righthand side of engine shaft — *The placement of the Mercury serial number label varies a bit from engine to engine. However, it is typically located on the righthand side of the engine.*

Simply put, your Mercury serial number will allow you to identify and order the right parts for your engine model and year.

Mercury manufactures many, many different models and often variations of each model. While one thermostat might be the proper selection for some variations of a given engine model, there’s no guarantee that it will be compatible will all variations of that engine—knowing your Mercury serial number is the key.

As if matters weren’t confusing enough, sometimes Mercury will change an engine model design midway thru a given engine model year.

Therefore, Mercury Marine parts are often segmented by serial number ranges. Knowing your serial number will allow you to make sure that you are ordering the right parts, whether you are utilizing a Mercury engine schematic/Mercury outboard parts diagrams, the Mercury parts library, the complete list of Mercruiser parts library, or other resources.

Mercury Maintenance Parts Selection Tool

Mercury Outboard Resources

208 comments

I have a 25hp Mercury that I am having trouble finding the parts diagram to. The serial number badge just lists the serial number as A187507.
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PartsVu replied:
Hi Dylan, Thank you for taking the time to read and for your comment! The serial number A187507 corresponds to a 1985 motor. While we are a Mercury dealer, we unfortunately don’t have the schematics available for that specific model and aged motor. I recommend reaching out to Mercury’s customer service at 920-929-5040; they should be able to assist you further with parts and information. If you have any other questions, feel free to ask!

Need year for Mercury Marine 80hp serial number B180467
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PartsVu replied:
Hi Nicki, Thank you for reading and taking the time to reach out! I’m happy to confirm that your Mercury Marine 80hp with serial number B180467 was manufactured in 1987. If you have any additional questions or concerns, please feel free to reach out. I’m here to help! Best regards,

I have a Mercury 150 and the serial # 0A969555. I would like to know more about it.
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PartsVu replied:
Hello George,

Thank you for your inquiry! Based on the serial number 0A969555, your Mercury 150 outboard motor was manufactured on February 28, 1986. If you’re looking for more information, such as specifications, parts, or maintenance details, I’d be happy to help. Let me know what you need!

Jessica Zapatero Customer Service Manager 888-625-5460 PartsVu.com Monday – Friday 8:00 am to 5:00 pm

I have a 50 hp mercury with serial number 7134341. I would like to know year and wether I can find parts?
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PartsVu replied:
Hi Randy, Thank you for your post!. It seems the serial number you provided, 7134341, isn’t listed in our Mercury system. The correct format typically includes a letter followed by a series of numbers. If you could provide the correct serial number, I’d be more than happy to look into this for you. I apologize for any inconvenience and confusion this may have caused. Thank you again for your time and for reading!

Hey,
Can You tell me what year my 5 hp mercury is ? the serial number is 0R603152 and the model number is 1F05201EL

Thanks
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PartsVu replied:
Hi Dustin,

Thanks for reaching out! Based on the serial number 0R603152 and model number 1F05201EL, your Mercury 5 hp outboard motor was manufactured 03/13/14. If you need any further details or assistance, feel free to ask!

Jessica Zapatero Customer Service Manager 888-625-5460 PartsVu.com Monday – Friday 8:00 am to 5:00 pm

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