GM Genuine Parts 131-71 (10190925) Engine Coolant Thermostat

Looks and feels true to type, and the seal comes in place with it as it should. Definitely seems like a real genuine Part.. would buy again,

Perfect fit! Always AC Delco whenever you can on your GM. The quality is great, it functions like it should, it was very easy to replace, it controls the temperature better now.

Exactly as described, works perfectly would definitely order again

Good

Quality OEM thermostat with gasket

Looks good 👍

This is what I got. It's not really AC Delco. It seems to be a GM part. I know AC Delco supplies parts to GM, but I don't know what the deal is with how this thing's packaged. It came with the seal and that's good because picture shows that it comes with a seal and the text says it comes with the seal. It is also stamped made in the USA. All good things. That's why I've given it five stars. I have questions, however, as to whether it's going to fit because the listing says it is 58.7 mm and it is stamped 54 mm. If it doesn't fit I will come back and certainly revise my review. Purchased for a 92 k2500 5.0 l. Edit:. It fit my truck just fine.

needed for our street rod build - work great

Excelente

ACデルコの新品と言うことで安心をしていましたが、開封して本体をよく見るとゆがんでいます。 動作確認のためにポットのお湯につけてみましたが、全く開きません！ 使えるのはサーモスッタトシールのみでした。 ACデルコに対するイメージが完全に変わりました！ 日本製が１番！！

OEM part fit perfect preformed as expected

Great that it comes with a Seal.., just make sure to get the right temp for your vehicle

Works perfectly on my 94 chevrolet k1500