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OMAX Thermostat to suit Mercury Mariner & Tohatsu F2.5, F3.5, F4, F5 & F6 replacing Pt. No. 804540 / 3H6-01030-0

Marsoni M251S
Sale price$19.95
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Get it in 3 business days with 1 day shipping. Friday, May 29
OMAX Thermostat to suit Mercury Mariner & Tohatsu F2.5, F3.5, F4, F5 & F6 replacing Pt. No. 804540 / 3H6-01030-0This is a genuine OMAX Thermostat to replace Mercury Mariner Pt No: 804540 and Tohatsu Pt. No. 3H6 01030 0. It will fit the following four stroke outboard models: Mercury Mariner 4hp 4 Stroke 5hp 4 Stroke 6hp 4 Stroke Tohatsu 4 Stroke MFS2A MFS2B MFS2. 5A MFS2. 5B MFS3. 5A MFS3. 5B MFS4A2 (12183 ) MFS4B MFS4C MFS5A2 (19757 ) MFS5B MFS5C MFS6A2 (01751 ) MFS6B MFS6C OMAX is a premium outboard parts supplier manufacturing and sourcing the highest quality
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Your OMAX Thermostat to suit Mercury Mariner & Tohatsu F2.5, F3.5, F4, F5 & F6 replacing Pt. No. 804540 / 3H6-01030-0 orders ship within 1-2 business days.

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  • Standard: 3-7 business days
  • Fast: 2-3 business days
  • Express: 1-2 business days

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You'll receive a tracking link by email once your OMAX Thermostat to suit Mercury Mariner & Tohatsu F2.5, F3.5, F4, F5 & F6 replacing Pt. No. 804540 / 3H6-01030-0 ships.

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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
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4.3 ★★★★★
Based on 1012 reviews
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Verified Purchase
Starcrescendo
Carnegie, US
★★★★★ 4
Sock it to me
Number of Items: 6, Color: White/Graphite (6-pairs), Size: Medium
These socks are super comfortable. They are really soft and cozy and fit well. However, they were advertised as "no show" socks and I even recently bought Under Armor shoes and they definitely show. I personally do not care about that in the slightest but thought I should mention it. It seems weird they advertise it that way but then it is not the case.. Anyway my only fault with the product is that these socks are THICC. Like these aren't cheap socks at all they feel luxurious but are quite thick in the shoes. I'm assuming this will be great once I start running since it should help absorb the impact, but otherwise it makes shoes feel a little tight. That's my only complaint with an otherwise high-quality product. Update: I don't know what in the world people are doing to them but I have had and washed them multiple times for months since I bought them and they have fared fine. You could maybe wash them inside out but I don't particularly do that and they have been fine. I separate white laundry from colors, are people being lazy and forgetting to do so? Don't blame the product...
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 17, 2019
K
Verified Purchase
Kendall Williams
Lake Worth, US
★★★★★ 5
A gift
Number of Items: 6, Color: White/Graphite (6-pairs), Size: Large
I ordered these as a gift for someone, he was really happy with items ordered off his wishlist.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 9, 2026
M
Verified Purchase
Manny
Louisville, US
★★★★★ 5
Loved this product!
Number of Items: 6, Color: Black/Graphite (6-pairs), Size: Large
I wear a size 8.5 or 9 in men shoes and this socks fit perfectly for me. They have the right amount of cushioning and support that I was looking for. Not too much that makes wearing shoes uncomfortable and not too little that feels like I’m not wearing anything. Will buy another set
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 27, 2023
J
Verified Purchase
Jeffrey Moffitt
Draper, US
★★★★★ 5
Heels wear out fast.
Number of Items: 6, Color: Black/Graphite (6-pairs), Size: Large
The heels wear out quickly. Disappointing. I’m retired and don’t put undue stress on my clothes. I wouldn’t buy them again.
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Reviewed in the United States on August 3, 2025
A
Verified Purchase
A
Bozeman, US
★★★★★ 5
Nice.
Size: Medium, Color: Prime Pink/White Assorted
These were great quality and perfect fit. They held up. Under Armour seems to make the better quality socks than others.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 5, 2026

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