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Automotive water pumps vs. LC pumps

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post #1 of 13 (permalink) Old 02-06-2020, 12:18 AM - Thread Starter
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Automotive water pumps vs. LC pumps

Why can automotive water pumps last for decades and hundreds of thousands of miles but not commercially available liquid cooling pumps? Shorter planned obsolescence periods?
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post #2 of 13 (permalink) Old 02-06-2020, 12:36 AM
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Noise... You don't want a noisy automotive pump.. All features come with some downsides.. have you ever heard an automotive pump? it's not optimized for being used in a quiet environment because there is no need for it. Also it's a bit more expensive mostly isn't it.. Different material choices.
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post #3 of 13 (permalink) Old 02-06-2020, 05:56 AM
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They're very different things but most good water pumps are rated for 50,000 hours or around 5 years continuous use. I don't know of many parts of a car that would like running for 5 years straight.
My car doesn't have that much actual running time per year and I think the average is fairly low. 50,000 hours at an average of 80kmh is 4,000,000km or over 2.5 million miles. I don't think that is possible for a car.

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post #4 of 13 (permalink) Old 02-06-2020, 06:26 AM
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Let's see. One is made of iron the other plastic. Guess which will last longer.

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post #5 of 13 (permalink) Old 02-06-2020, 06:35 AM
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Depends on the automotive waterpump to, ask GM about their pump reliability lol. Which reminds me I need to change mine on my Jeep. But in all, the ones we use for watercooling last for quite a while when you think about it.

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post #6 of 13 (permalink) Old 02-06-2020, 07:38 AM
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Hi,
Automotive water pumps are not electric they are belt driven.

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post #7 of 13 (permalink) Old 02-06-2020, 07:42 AM
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D5 pumps DO last years, FYI.

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post #8 of 13 (permalink) Old 02-06-2020, 04:00 PM - Thread Starter
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Quote: Originally Posted by Bart View Post
D5 pumps DO last years, FYI.
The water pump in my friend's 2000 Ford Explorer? It's still the original water pump, no leaks.

My old 1991 Jeep Cherokee's water pump was never replaced and I had it for more than 20 years.
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post #9 of 13 (permalink) Old 02-06-2020, 04:20 PM
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Because liquid cooling PC components for retail market are as cheapskate as it gets.
Anyone gonna use these in servers? Nah, I don't think so.
How about in industrial machines? No way. I have one of those and it's size is that of a PSU, maybe a little more. And it's for 220V AC not 12V DC.

The PC LC pumps are small, cheap, simple, unreliable but can be quieter.
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post #10 of 13 (permalink) Old 02-06-2020, 04:30 PM
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Quote: Originally Posted by 8051 View Post
Why can automotive water pumps last for decades and hundreds of thousands of miles but not commercially available liquid cooling pumps? Shorter planned obsolescence periods?
i'd be willing to bet the high end metal housing d5 styled 12v pumps would last 20 years. My current MCP35x2 is marching towards a decade just fine, 24/7 use for 7 years now.

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