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#4625691 - 01/06/18 09:32 AM Napa/Gates/Dayco Radiator hoses
Drew99GT Offline


Registered: 10/11/02
Posts: 22130
Loc: Colorado Springs
I'm in the process of replacing the radiator in my Corolla; top plastic tank got a pinhole leak that turned into a geyser. Went with a Denso replacement. Car has a tick over 200K; the factory radiator hoses still look good but since it will all be apart, I figure I'll do the hoses since I plan on driving the car into the ground.

The title says it all; those are my local choices for hoses. I've read Napa = Gates. What should I use??? I'm leaning towards the Napa since they are cheaper. My main concern is fitment and total diameter being equal to the factory hoses so I can reuse the factory spring clamps.

Thoughts? Thanks!

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#4625701 - 01/06/18 09:43 AM Re: Napa/Gates/Dayco Radiator hoses [Re: Drew99GT]
SatinSilver Offline


Registered: 01/24/08
Posts: 10182
Loc: OH
I'd probably go on Amazon and shop for some OEM hoses. Maybe even just leave them alone if they aren't soft or leaking. They can last the life of the car and are designed that way.

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#4625710 - 01/06/18 09:53 AM Re: Napa/Gates/Dayco Radiator hoses [Re: Drew99GT]
Chris142 Offline


Registered: 06/05/03
Posts: 16843
Loc: Deplorable in apple valley, ca
Throw those factory clamps in the trash! They are generally a 1 time use. Once removed they often let the hose leak. I work at a radiator shop and hate spring clamps with a passion! Get a quality screw clamp. Recheck it after a few weeks and your good to go.
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#4625720 - 01/06/18 10:02 AM Re: Napa/Gates/Dayco Radiator hoses [Re: Drew99GT]
Drew99GT Offline


Registered: 10/11/02
Posts: 22130
Loc: Colorado Springs
I knew you'd say that Chris! I value your opinions, but in my experience, the factory spring clamps are the bomb. They never leak or need re-tightening. I always try and reuse them.

Do you have any input on the hoses?

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#4625748 - 01/06/18 10:22 AM Re: Napa/Gates/Dayco Radiator hoses [Re: Drew99GT]
michaelluscher Offline


Registered: 10/07/12
Posts: 2424
Loc: Staten Island, NY
Toyota hoses weren't particularly expensive for my Camry

Maybe $20 each

I like OEM on things that can jeopardize an engine (radiator cap)

Consider a variant of the worm clamp, the constant tension clamp

Available on Rockauto for reasonable $
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#4625807 - 01/06/18 11:16 AM Re: Napa/Gates/Dayco Radiator hoses [Re: Drew99GT]
Trav Offline


Registered: 11/20/06
Posts: 18909
Loc: MA, Mittelfranken.de
Originally Posted By: Drew99GT
I knew you'd say that Chris! I value your opinions, but in my experience, the factory spring clamps are the bomb. They never leak or need re-tightening. I always try and reuse them.

Do you have any input on the hoses?


+1 screw clamps with the exception of constant tension belleville spring types are one of the worst things ever foisted on an industry.
When you start getting down below freezing they loose tension and leak requiring constant retightening and consequently damage the hose, its common to see the hose poking through the slits on screw clamps.

I prefer Gates or OE to Dayco aftermarket, one trick to reusing the spring clamps is to put them on the neck first then put the hose in the clamp as its going on. Getting the clamp over the hump is the most common problem when using aftermarket hoses.
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#4625815 - 01/06/18 11:24 AM Re: Napa/Gates/Dayco Radiator hoses [Re: Chris142]
Trav Offline


Registered: 11/20/06
Posts: 18909
Loc: MA, Mittelfranken.de
Originally Posted By: Chris142
I work at a radiator shop in sunny California where the temp rarely if ever drops below freezing


Fixed it for ya. You experience with screw clamps does not reflect their performance in other parts of the country especially where the temps drop below freezing and worse. If you worked in up here in skunk hollow you would have a trash barrel full of them.
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#4625832 - 01/06/18 11:39 AM Re: Napa/Gates/Dayco Radiator hoses [Re: Drew99GT]
Drew99GT Offline


Registered: 10/11/02
Posts: 22130
Loc: Colorado Springs
Yea Trav; we get seriously extreme temperature swings throughout the year. If you installed a regular worm gear clamp in July when it's 95 degrees, come January when it's 10 below, it will be very loose.

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#4625860 - 01/06/18 12:04 PM Re: Napa/Gates/Dayco Radiator hoses [Re: Drew99GT]
michaelluscher Offline


Registered: 10/07/12
Posts: 2424
Loc: Staten Island, NY
For reference, this is the type of constant tension clamp that you DO want


And this is the one you Don't want to reuse



If your willing to buy new at the dealer, they're great

Not so great as they age and get R&Red during repairs
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#4625867 - 01/06/18 12:10 PM Re: Napa/Gates/Dayco Radiator hoses [Re: Drew99GT]
Warstud Offline


Registered: 09/02/05
Posts: 5414
Loc: MIchigan
The OP wanted opinions on hoses.

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#4625876 - 01/06/18 12:15 PM Re: Napa/Gates/Dayco Radiator hoses [Re: Warstud]
javacontour Offline


Registered: 06/26/03
Posts: 10306
Loc: Illinois
This is BITOG, you always get more than you asked for here.


Originally Posted By: Warstud
The OP wanted opinions on hoses.
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#4625937 - 01/06/18 12:50 PM Re: Napa/Gates/Dayco Radiator hoses [Re: Drew99GT]
Chris142 Offline


Registered: 06/05/03
Posts: 16843
Loc: Deplorable in apple valley, ca
Dayco,napa/gates are good hoses. Dayco is often smaller diameter. Back to spring clamps. We stopped reusing them due to all the combacks when we reused one.
_________________________
02 Wrangler durablend 10w40
87 F250 traveler 15w40
04 Tahoe super-s 10w30
Z400 castrol T 10w40
Can am maveric edge 5w40
57 case tractor 15w40

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#4625941 - 01/06/18 12:51 PM Re: Napa/Gates/Dayco Radiator hoses [Re: Drew99GT]
Linctex Offline


Registered: 12/31/16
Posts: 6178
Loc: Waco, TX
Originally Posted By: Drew99GT
I knew you'd say that Chris! I value your opinions, but in my experience, the factory spring clamps are the bomb. They never leak or need re-tightening. I always try and reuse them.


Same here.... I once was a skeptic, but now I love factory hose clamps.
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#4625990 - 01/06/18 01:27 PM Re: Napa/Gates/Dayco Radiator hoses [Re: Drew99GT]
Lubener Offline


Registered: 01/22/11
Posts: 2577
Loc: N.Ohio
I prefer Dayco over Gates anyday. They usually are thicker. Don't waste your money for OEM hoses..
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#4626040 - 01/06/18 02:24 PM Re: Napa/Gates/Dayco Radiator hoses [Re: Drew99GT]
Vern_in_IL Offline


Registered: 06/25/14
Posts: 1892
Loc: IL
Hoses should be good whatever you get..... As long as they stay dry and no oil contact, they are so good.
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