SKU: 48676986805

Mishimoto High Temperature Thermostat 89-93 Dodge 5.9L Cummins

Sale price$58.46 Regular price$64.95
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Ships within 48 hours · Estimated delivery Jul 10 - Jul 15

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Description

Mishimoto High Temperature Thermostat 89-93 Dodge 5.9L CumminsIf you live in the north, or anywhere that gets cold, and youre tired of waiting a while for your engine to warm up, then Mishimotos high temperature thermostat for your 1989 1993 Dodge 1st Gen Cummins can help solve that problem. The 12 valve first gen Cummins in your Ram is considered one of the best diesel engines ever produced, and for good reason. Fuel efficiency, torque, and simplicity are just a few characteristics that give the Cummins its

If you live in the north, or anywhere that gets cold, and you’re tired of waiting a while for your engine to warm up, then Mishimoto’s high temperature thermostat for your 1989-1993 Dodge 1st Gen Cummins can help solve that problem. The 12-valve first-gen Cummins in your Ram is considered one of the best diesel engines ever produced, and for good reason. Fuel efficiency, torque, and simplicity are just a few characteristics that give the Cummins its stellar reputation. There are plenty of huge fans of the Cummins engine, which is why Mishimoto developed a high-temperature thermostat for the 1989-1993 5.9L 12v Cummins. This Mishimoto thermostat activates at a higher temperature (189.5°F) compared to the factory thermostat (180°F). By raising the activation temperature, coolant flows through the system later, promoting quicker engine warmup. The Mishimoto high-temperature thermostat is ideal for vehicles in cold climates, where rapid warmup and quicker in-cabin heat is vital. This thermostat includes a high-quality replacement gasket and the signature Mishimoto Lifetime Warranty.

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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.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 48676986805

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sarah
Natrona Heights, US
★★★★★ 5
Soft & fluffy. Stuffy arm rest.
Color: Purple, Color: Purple
Soft and fluffy & my fav color purps. Now I'm looking for other purple accessories to go with my 2021 Honda CRV. I don't think this cover would be be enough for a large SUV arm rest such as a Navigator... But yea, order if you want some color & funk in the ride
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Reviewed in the United States on February 25, 2026
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Amy
Fort Morgan, US
★★★★★ 1
Return refund impossible to receive also it’s tacky looking
Color: Black
First off this item said it was fit, but it did not second of all I went to return it and they could only be returned to the original payment method my credit card. My bank is not showing anything. Amazon is zero help trying to say it went back on a gift balance, which I have photo proof that both are incorrect. I tried to reach out to the seller and they were also zero help so I advise one not to buy this because it’s small and cheap looking too you can’t get your refund back.
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Reviewed in the United States on October 30, 2025
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Biff Worthington
New York, US
★★★★★ 4
It’s so so but ok
Color: Champagne
The color is good and the hair is not as silky as my car seat or seatbelt covers. Also the hairs really get matted. It may just be from elbows but it gets so matted it is hard to undo. And when you do get it good it happens right again and frankly looks bad and unkempt. Other than that it fits right and is more comfy than original so I leave it on. Even with vacuum at car wash the mats stay so it seems eventually it will be too much. I have had it about a month. Maybe a shorter pile is a better option for armrest, like shearling pile. I’ll try that when this one is too far gone. It wasn’t expensive and is still worth the money to not have a blazing hot armrest so I m good for now.
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Reviewed in the United States on April 17, 2026
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shari morgan
Carnegie, US
★★★★★ 3
🙂‍↔️
Color: Light Pink, Color: Light Pink
The color is beautiful. Is soft, but it runs very short doesn’t fit my car. I’ve had it for six months and now it looks like a dirty dog lol
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Reviewed in the United States on March 17, 2026
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Naomi
San Leandro, US
★★★★★ 5
Pop some color
Color: Purple
Cute and fun!
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Reviewed in the United States on April 7, 2026

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