Mishimoto Mopar Pentastar / Hemi Thermal Bypass Valve Upgrade

Mishimoto Mopar Pentastar / Hemi Thermal Bypass Valve Upgrade

Marsoni

M251S

$90.95

Get it in 3 business days with 1 day shipping. Friday, May 29

Mishimoto Mopar Pentastar / Hemi Thermal Bypass Valve UpgradeSKU: MMTC JK TBVFF UPC: 840197706091 Mishimoto Mopar Pentastar Hemi Thermal Bypass Valve Upgrade Replace the stock thermostatic bypass valve in your 2012 2018 Jeep Wrangler JK and compatible Mopar vehicles with Pentastar or Hemi engines using this Mishimoto full flow upgrade. It delivers transmission fluid to the cooler from startup eliminating flow restrictions and thermostat failures that cause overheating. Perfect for trail driving towing or hot

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This is alot like Nite Eyez but not as good but if you have never used Nite Eyez you will love this!! I have an am. staff that i take to the park at night so she can run around without the fear of a dog running up on her (she doesn't like that) and this ball is great! Stays lit and changes colors and it she cant destroy it!

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Reviewed in the United States on November 1, 2025

Verified Purchase

L. Reller

Battle Creek, US

★★★★★ 5

Works Great!

This is a new version of an old style that was the best most durable, and long lasting night time balls!!! They stay on long enough for me to find if my lab cant find it. (We have an acre backyard and in ground swimming pool) sometimes I have to retrieve it. Stays on and auto shuts off after inactivity. They ARE waterproof and we play in the pool with them on night swims. My lab is very hard on balls, very few hold hold up to his chomping on them. Great balls!!

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Reviewed in the United States on October 30, 2025

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Jacqueline M.

Boise, US

★★★★★ 1

not worth the cost

I love these balls for night time ball playing but they dont last. The last 4 Ive bought havent worked well or lasted more than a month. They were once worth the money

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Reviewed in the United States on April 1, 2026

Verified Purchase

james allen

Lexington, US

★★★★★ 3

Great Idea but they will let you down eventually

I have used these for years during the winter. The price has nearly tripled but the longevity is the same. I normally purchase three with one being a spare. Within a few weeks they start going. I switch batteries etc but normally that does not help. Its a great idea and my dogs love them but they dont hold up to 10 minutes of play each nite. We do not throw them either, I roll them or kick them as my dogs are older

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Reviewed in the United States on November 12, 2025

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Mitchell LaForest

Chelsea, US

★★★★★ 5

Great product

Very good. Hours of fun with the dog.

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Reviewed in the United States on March 3, 2026