Merten Marine
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It is our fundamental philosophy to find a perfect solution and fixes to boating issues that will maximize your enjoyment whether it is fishing, recreational, sport, or high-performance racing; a lifestyle important to you.

Our continued involvement in new product development, developing new ways to fine tune fuel efficiency and performance to boaters' need, a lifetime engagement in boat racing, and promoting the boat industry through legislation gives us an edge when consulting each situation to achieve the ultimate best for your type of boat and engine.
Services
Established in 1983, Merten Marine LTD is a second-generation family business. The primary business is marine maintenance, service, and repairs located in Oshkosh, Wisconsin, specialized in boat propeller design and alterations. The business expanded into an online shopping website in 2006 of Mercury Marine products.
Reviews (8)
Kathleen Weber
Kathleen Weber
Aug 25, 2021
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DON'T bring your motor here to be repaired. Jim had our motor for 8 full weeks this summer; not because it took that long to fix, but because his priority was working on motors related to his racing business. He promised it would be done several times, then when we went to pick it up, he said it wasn't ready. He is knowledgable about motors, but his work is very slow and his delays cost us the use of our boat for the whole summer. Take your motor repair to someone who will care about customer satisfaction.
Brian George
Brian George
Apr 03, 2021
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I buy parts from them. They have new and some used Mecury parts. Knowledgeable staff.
Matthew Jeanquart
Matthew Jeanquart
Jan 29, 2021
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I went through my boat last spring checking compression, DVA readings carb cleaning, fuel & filters and so on I brought it someplace else to get it fixed. After 2 stints to get it repaired elsewhere, I talked with our mechanics at work and both directed me to Merten. I was frustrated enough I was about ready to purchase a new motor to the tune of $11K. Merten asked me to write down all the things I had already done and any readings I had. Within a couple days the motor was diagnosed, I approved the repair and the boat was ready by the time returned from my work trip. When I went to pick it up Jim
David Lecapitaine
David Lecapitaine
Oct 02, 2020
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These guys are amazing. They sure know how to keep my boats on the water. Thank you John. 😁😎
Blaine Bigger
Blaine Bigger
Jan 01, 2020
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Bought a rubber grommet for my outboard cowling. Sent a description of the item i needed with the purchase of the grommet. Before shipping the item, Merten sent me back pictures with a tape measure for exact measurements. Installed grommet this weekend, awesome fit.
A+ on the online purchase and communication.
K. Seymer
K. Seymer
Dec 04, 2018
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Nice folks and very knowledgable about Mercury engines. I wish I didn't always seem gasp so hard though when the invoice gets tallied. Still, there is no where else I'd rather take my Mercury engines for service and repair.
Noah Uecker
Noah Uecker
Dec 31, 2017
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WARNING!!!!! Do NOT use Merten Marine!!! --I am not one to ever post slander online but others need to know--Long story short, took my boat there to get fixed, they lied to me, refused to give me a quote, and then charged me two thirds what I originally paid for my boat when I picked it up! (All labor- parts where only about $200) this is after repeated attempts to find out an estimate or hours worked on the boat. (Understandable that boat repairs are costly), however, I was never quoted with a ball park price-parts needed- or even what was wrong. (As I specifically requested in writing) I called
Lynn Favors
Lynn Favors
Jul 04, 2017
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I have nothing but good experience with Jim. He has sent me parts very fast when I was down, and has took time after hours to answer questions to help me out to get me back on the water. Thank you Jim for being there and God bless