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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.

Delivery Options:

  • 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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4.0 ★★★★★
Based on 2006 reviews
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swwkennyg
Whiting, US
★★★★★ 5
Perfect sucks
Size: Medium, Color: (001) Black / Black / Castlerock
Wonderful socks . The weight is perfect !! These do not slip when in a shoe they stay out !!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026
M
Verified Purchase
Monica Alzate
Omaha, US
★★★★★ 4
Amazing but quality changed
Size: Large, Color: (002) Black / Black / Halo Gray
Love these socks so much, been buying them for about 4 years now!! Not giving them 5 stars anymore because the quality is different and not as good, durable and thick as before.
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Reviewed in the United States on July 10, 2025
H
Verified Purchase
Heather260
Waukegan, US
★★★★★ 5
The best no show socks
The only no show socks I have ever found that do not slide down. These are very comfortable and the extra tab on the back provides comfort by keeping shoes from rubbing the back of your foot. The top of the sock also comes up high enough to cushion the top of your foot all while still remaining hidden while wearing tennis shoes or even with my hey dudes.
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Reviewed in the United States on November 30, 2025
N
Verified Purchase
Nick
Louisville, US
★★★★★ 5
Great quality and fast shipping
Size: Medium, Color: (001) Black / Black / Castlerock
These socks are tight but after the first wash and dry , they fit perfect and NEVER slide off , ordered a second pack
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Reviewed in the United States on March 24, 2026
B
Verified Purchase
Bargain Rig
Massapequa, US
★★★★★ 5
Comfortable, Durable, and Stylish
Perfect gift choice! Excellent quality socks with a variety of colors to match any wardrobe.
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Reviewed in the United States on November 30, 2025

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