Skip to content

Mishimoto In-Line Oil Thermostat

Marsoni M251S
Sale price$166.95
Pay 4 payments of $41.74 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Mishimoto In-Line Oil ThermostatLooking for ideal fluid temperature regulation for your next project? Mishimoto has the answer with our innovative, ingenious in line oil thermostat. This sleek unit features a perfect blend of both form and function, and is precision engineered to properly regulate engine oil, transmission fluid, or any other driveline fluid. The Mishimoto In Line Oil Thermostat is CNC machined from a single piece of billet 6061 aluminum. This component is ideal for
Easy Shipping

Quick Dispatch:

Your Mishimoto In-Line Oil Thermostat orders ship within 1-2 business days.

Delivery Options:

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

Order Tracking:

You'll receive a tracking link by email once your Mishimoto In-Line Oil Thermostat ships.

Need Help?
Questions about Mishimoto In-Line Oil Thermostat, sizing, or delivery? We're just an email away.

Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for Mishimoto In-Line Oil Thermostat in your area.

Get Shipping Estimates

Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
4.9 ★★★★★
Based on 1734 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
M
Verified Purchase
Molly A.
Natrona Heights, US
★★★★★ 5
Great product
Style: Mineral, Pattern Name: Gallon - 1 Pack
Very reliable oil I have been using it for years and never had any problems with it
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
A
Verified Purchase
Albert B Matthews
Charlottesville, US
★★★★★ 5
Quality product
Style: Mineral, Pattern Name: Quart - 6 Pack
Quality product at a reasonable price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 15, 2025
R
Verified Purchase
Roy Roldan
Alexandria, US
★★★★★ 5
Great product ,price delivery and seller
Style: Mineral, Pattern Name: Gallon - 1 Pack
Perfect, great item and seller
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 3, 2026
J
Verified Purchase
Jared
Battle Creek, US
★★★★★ 4
Not brand name, but oil is oil for generators
Style: Mineral, Pattern Name: Gallon - 1 Pack
Good value. Used in generators for me. Change every 30 hours of run time. No qualms.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 5, 2025
C
Verified Purchase
4cams
Omaha, US
★★★★★ 5
OEM recommended.
Style: Mineral, Pattern Name: Quart - 1 Pack
It is the OEM recommended oil for my 2017 9.9 outboard. Arrived quickly and in a sealed plastic bag. No leaks. This is 32 oz and the motor only calls for 27 oz so enough for topping up in needed.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 23, 2026

recommand products