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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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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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4.4 ★★★★★
Based on 358 reviews
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Verified Purchase
G'Wood
Chelsea, US
★★★★★ 4
Rain Wipes
Size: 24" and 19", Style: Pack of 2
Nearly does the trick, where there's a better model option. Wished I had purchase the higher grade model, for this model doesn't wipe as well during moderate and heavy rain. However, for the price I got what I paid for, with my history of this brand, knowing it will have a bit of useable life. It was a fit...Actual replacement. Easy to install. Smooth wipe, for there's no squecking.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
S
Verified Purchase
Spike
Louisville, US
★★★★★ 5
Prefect fit
Size: 22", Style: Pack of 1
Fit my 2013 Toyota Tacoma exactly. It was easy to install and I'd recommend it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
M
Verified Purchase
Momzilla4
Alexandria, US
★★★★★ 5
Efficient and affordable
Size: 26" and 20", Style: Pack of 2
These were a perfect fit for a 2023 Toyota Sienna. They clean the windshield with no streaks, exactly as they should and I don’t notice any additional noise. Installation took about 3 minutes, and was a little tricky but not impossible.
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Reviewed in the United States on May 24, 2026
F
Verified Purchase
Flawless
Lexington, US
★★★★★ 5
Affordable Blades That Works!
Size: 24" and 21", Style: Pack of 2
The wiper blades were easy to install and is doing an awesome job thus far. The fit is perfect and they glide smoothly across my window. Great material and was definitely a good purchase.
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Reviewed in the United States on April 25, 2026
J
Verified Purchase
John Rec
Dallas, US
★★★★★ 5
Pricing
Size: 22", Style: Pack of 2
Fit my F150 perfectly and what an easy installation, no issues @ a great price vs the Auto stores
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Reviewed in the United States on May 11, 2026

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