Mishimoto 2003+ Toyota 4Runner 4.0L Low-Temperature Racing Thermostat

Mishimoto 2003+ Toyota 4Runner 4.0L Low-Temperature Racing Thermostat

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$89.95
$89.95 $99.00
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A defective thermostat can result in engine overheating and potential internal damage. Improve the reliability of your 2003-2024 Toyota 4Runner 4.0L cooling system with a Mishimoto Low-Temperature Racing Thermostat and housing! This thermostat is designed as a direct-fit replacement for your aged stock unit. The Mishimoto thermostat has a lower activation temperature (71?C/160?F) compared to the factory thermostat (82?C/180?F). The lower activation temperature allows coolant to flow through the engine earlier, which reduces and maintains lower engine temperatures. This thermostat is ideal for use in warmer climates, on vehicles making more power than stock, or under extreme towing/driving conditions. The stock-style housing will provide a proper seal and installs easily. Like all our Toyota Performance parts, this thermostat and housing includes the Mishimoto Lifetime Warranty.

Engine coolant thermostat designed to regulate coolant flow and maintain optimal operating temperature. Ensures efficient warm-up, prevents overheating, and supports reliable performance with a precise fit.

  • The lower activation temperature allows coolant to flow through the engine earlier, which reduces and maintains lower engine temperatures. (71C/160F compared to the factory thermostat at 82C/180F)
  • Ideal for use in hot climates, on modified vehicles, or in extreme towing/driving conditions
  • Stock-style housing includes pre-installed low-temperature thermostat for easy install
Mishimoto 2003+ Toyota 4Runner 4.0L Low-Temperature Racing Thermostat

$89.95

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Does it come with a warranty?

Yes, most products we sell are backed by the manufacture's warranty. Warranty coverage varies by brand, so check the product listing or contact us if you have any questions before purchasing.

What happens if I don't like it?

If you're not completely satisfied, we're here to help. Eligible unused items may be returned within 30 days of delivery, subject to our return policy and applicable restocking fees.

How fast is shipping?

We process most orders within 1-2 business days. Shipping times vary by product availability and location, but most customers receive their orders within 3-7 business days after they ship.

What's the returns policy?

Returns must be requested within 30 days of purchase, Items must be new, unused, and in their original packaging. Approved returns are subject to a 30% restocking fee. Custom order, electrical, and special order items may not be eligible for return.

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