HIMARKLIF thermostat with gasket for Johnson/Evinrude engines, precise temperature control.
HIMARKLIF seal detail showing thicker NBR gasket for durable sealing.
HIMARKLIF copper and stainless construction supports heat and corrosion resistance.
HIMARKLIF replacement parts compatible with 5005440 and 8330720.
HIMARKLIF easy installation for Johnson/Evinrude outboards.
HIMARKLIF 60°C activation temperature helps regulate engine temperature.
HIMARKLIF thermostat with gasket for Johnson/Evinrude engines, precise temperature control.
HIMARKLIF seal detail showing thicker NBR gasket for durable sealing.
HIMARKLIF copper and stainless construction supports heat and corrosion resistance.
HIMARKLIF replacement parts compatible with 5005440 and 8330720.
HIMARKLIF easy installation for Johnson/Evinrude outboards.
HIMARKLIF 60°C activation temperature helps regulate engine temperature.

HIMARKLIF Thermostat with Gasket for Johnson/Evinrude Outboard Motors 5-235 HP | Replace 5005440 8330720 777260

Overview and what to expect HIMARKLIF presents a thermostat kit designed for a broad range of Johnson...
Vendor: HIMARKLIF
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HIMARKLIF thermostat with gasket for Johnson/Evinrude engines, precise temperature control.

HIMARKLIF Thermostat with Gasket for Johnson/Evinrude Outboard Motors 5-235 HP | Replace 5005440 8330720 777260

£29.30
HIMARKLIF thermostat with gasket for Johnson/Evinrude engines, precise temperature control.
HIMARKLIF seal detail showing thicker NBR gasket for durable sealing.
HIMARKLIF copper and stainless construction supports heat and corrosion resistance.
HIMARKLIF replacement parts compatible with 5005440 and 8330720.
HIMARKLIF easy installation for Johnson/Evinrude outboards.
HIMARKLIF 60°C activation temperature helps regulate engine temperature.

HIMARKLIF Thermostat with Gasket for Johnson/Evinrude Outboard Motors 5-235 HP | Replace 5005440 8330720 777260

£29.30
Description
Description
x

Overview and what to expect

HIMARKLIF presents a thermostat kit designed for a broad range of Johnson and Evinrude outboards, from classic 5 hp models up to mid-range power units. Crafted with durable stainless steel and copper, it delivers efficient heat transfer while standing up to marine exposure. The mid-seal uses a thicker NBR compound to improve sealing against oil and moisture, helping to keep the system reliably sealed over time.

Materials and sealing that endure

  • High-quality stainless steel and copper provide strong thermal conductivity and durability under marine conditions.
  • The thicker NBR seal enhances sealing performance against oil, heat, and saltwater intrusion.

Part numbers and broad compatibility

  • Replaces: 5005440, 8330720, 777260, 0377148, 393659, 434841, 378065, 59434841, 508626.
  • Fitment covers a wide spectrum of Johnson & Evinrude engines, including various HP ranges listed in the product notes.

Function, temperature control, and performance

The thermostat activates at 60°C, helping to regulate temperature within the cooling system. While results can vary by setup, maintaining steady temperatures may contribute to consistent engine behavior and potential efficiency gains during typical boating sessions.

Ease of installation and long-lasting use

Manufactured to precise specifications, this kit is designed for straightforward installation and reliable long-term use. The robust build aims to resist heat and corrosion, supporting durability in regular marine environments.

Real-world use cases

  • Ideal as a replacement for aging thermostats in classic Johnson/Evinrude outboards.
  • Suitable for boaters restoring engines and seeking dependable, factory-aligned temperature control.

FAQ

Q: Is this thermostat compatible with my Johnson or Evinrude outboard 5-235 HP?

A: The kit lists broad compatibility across Johnson and Evinrude models, including many 5 HP to over 100 HP engines; verify the included part numbers: 5005440, 8330720, 777260.

Q: What benefits can I expect from replacing the thermostat?

A: The design emphasizes precise temperature control and durable sealing with corrosion- and heat-resistant materials, which may support steady engine temperatures and potentially help with efficiency in everyday use.

Shipping & Return
Shipping & Return
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Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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