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Spare parts reviews ➔ All comparisons ➔ MOPAR ➔ AISIN

Thermostat MOPAR or AISIN

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MOPAR
AISIN
MOPAR › Thermostat
NotoriousSouthpaw
  • Overheating:
Rating 4.0

The Mopar stats (mfg by Motorad) can be had from Rockauto, and are generally well regarded, if more expensive than generic parts store units.

Pros: generally well regarded
Cons: more expensive
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MOPAR › Thermostat
squeekyball
  • Slow warm-up:
  • Overheating:
Rating 4.0

I got a Mopar thermostat from the dealer a few months ago. Works much better than the previous two aftermarket units

Pros: works much better
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MOPAR › Thermostat
DerpiestDave
  • Slow warm-up:
Rating 5.0

In case anyone else comes across this post, it was the aftermarket thermostat. I managed to get a hold of a mopar one yesterday and the gasket around it was just slightly larger than the aftermarket one and needed a little bit of resistance to seat it. Now my truck is getting up to temperature quickly and working great.

Pros: truck working great
Cons: aftermarket thermostat bad
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MOPAR › Thermostat
flyin-lowe
Rating 5.0

I replaced the thermostat in my wifes 2014 journey with the V6. It was an easy and straight forward job.

Pros: easy and straight forward
Vehicle: Dodge Journey
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MOPAR › Thermostat
InitialBackground555
  • Overheating:
Rating 4.0

I highly suggest only getting genuine mopar. Myself and others have had issues with the generic part store thermostats that were fixed by using mopar.

Pros: genuine Mopar fixed issues
Cons: generic part store issues
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MOPAR › Thermostat
browning1396
  • Overheating:
Rating 3.0

I just bought one off RockAuto. I have to overhaul my entire coolant system and through some searching on this subreddit I saw a lot of people saying the Motorad brand kept failing after a few months. I didn\u2019t want to risk it so I opted for the Mopar thermostat from RockAuto for $35.

Cons: Motorad brand kept failing
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MOPAR › Thermostat
WTFpe0ple
  • Slow warm-up:
  • Overheating:
Rating 3.0

Yep, these are a known bitch to bleed out the air, as well as aftermarket thermostat's not working well after replacement. I have seen some go thru a few to get one that works.

Cons: thermostat not working well
Vehicle: Jeep
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MOPAR › Thermostat
healthyspecialk
  • Slow warm-up:
  • Overheating:
Rating 1.0

The thermostat failed twice. Once at like 80k miles and again at 115k miles. The second time it failed I replaced it with an aftermarket one that had a metal stem instead of plastic. It made it until we traded it in.

Pros: aftermarket lasted
Cons: failed twice, plastic stem
Vehicle: Jeep Renegade
Mileage: 80000 km
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Which thermostat to choose — MOPAR or AISIN?

If choosing thermostat across many manufacturers, check the part ranking. If your choice is down to two brands, the PartReview part comparisons help.

We compare thermostat across these categories:

Comparison of thermostat MOPAR and AISIN
  1. PR Score.
  2. Overall ranking.
  3. Vote balance.
  4. Average rating.
  5. Number of reviews.
  6. Feature ratings.
  7. Car owners’ choice.

Which thermostat are better — AISIN or MOPAR?

In March 2026 on PartReview, thermostat MOPAR were overall better than AISIN.

  1. MOPAR received a PR Score of 73 out of 100, and AISIN scored 83 points.
  2. MOPAR ranked 4 in the overall ranking, and AISIN ranked 5.
  3. The average rating is higher for AISIN (4.3) than for MOPAR (3.8).
  4. Thermostat AISIN have better feature ratings than MOPAR:
    • Slow warm-up - owners believe, that this property for AISIN is better than MOPAR.
    • Overheating - drivers claim, that this property for AISIN is outperforms MOPAR.
    • Cabin heat - reviews suggest, that this property for MOPAR is preferred to AISIN.

Which thermostat are more popular — MOPAR or AISIN?

In March 2026 on PartReview, thermostat MOPAR were overall more popular than AISIN.

By vote balance, thermostat MOPAR surpassed AISIN:

  • For MOPAR, the ratio of positive (42) to negative (15) votes is 27 votes.
  • For AISIN, the ratio of positive (26) to negative (5) votes is 21 vote.

By number of reviews, thermostat MOPAR surpassed AISIN:

Which thermostat do car owners prefer — MOPAR or AISIN?

In March 2026, according to PartReview, thermostat MOPAR led more car-specific ratings than AISIN:

MOPAR are chosen by owners of cars such as: Jeep Wrangler, and others.

Thermostat AISIN have not yet taken leading positions in car-specific ratings. You can help by adding a review and specifying your car.

Other comparisons of thermostat

If this comparison didn’t fully answer your question, there are many others on PartReview.

For example, comparisons of thermostat MOPAR with: MotoRad, Wahler, OEM Volkswagen, Mahle, OEM Mazda, MISHIMOTO, Gates, OEM BMW, OEM Nissan, OEM Audi.

Also available: comparisons of thermostat AISIN with: MotoRad, Wahler, OEM Volkswagen, Mahle, OEM Mazda, MISHIMOTO, Gates, OEM BMW, OEM Nissan, OEM Audi.

You can also see who is better among other thermostat manufacturers: Wahler or MotoRad, OEM Volkswagen or MotoRad, Mahle or MotoRad, OEM Mazda or MotoRad, MOPAR or MotoRad.

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