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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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4.2 ★★★★★
Based on 2162 reviews
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Doraiky
West Palm Beach, US
★★★★★ 5
Bueno
Size: 5 Quarts
Bueno
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 3, 2026
E
Verified Purchase
E.B.
Phoenix, US
★★★★★ 5
switched from Mobil 1
Size: 5 Quarts
always used Mobil 1, my 2003 accord v6 always burned a little bit of oil, switched to this and it barely burns any at all now. will continue to use this from now on.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 27, 2026
J
Verified Purchase
Joe S
Fort Morgan, US
★★★★★ 4
ITS GOOD OIL
Size: 5 Quarts
OVERALL NOT BAD BUT USING IT TO SEASON A CAST IRON WILL CREATE A BIT TOO DARK OF A SHEEN. WISH THE MANUFACTURER MENTIONED THAT
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Reviewed in the United States on April 8, 2025
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patricia
Omaha, US
★★★★★ 5
buenos
Size: 5 Quarts
Siempre compro de este aceite y es buenisimo me gusta
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Reviewed in the United States on May 5, 2026
B
Verified Purchase
Booktroll
Chelsea, US
★★★★★ 5
Well researched, disturbing, engaging.
Format: Paperback
I was amazed at how indepth and involved this history was. Very interesting, engaging and also very disturbing.
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Reviewed in the United States on April 1, 2026

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