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Discussion Starter · #1 ·
I’m looking for the BEST water pump for my 2005 SXT… This morning I went to Autozone and their Duralast water pump was plastic and spinning it – it had high friction… So a good water pump would also have a good seal as well as low parasitic friction + a METAL impeller. The one at O’Reilly’s was plastic impeller too.

So looking up an ebay search, here are the various brands of water pumps: http://www.ebay.com/sch/i.html?_nkw=2005+dodge+grand+caravan+water+pump&rt=nc

This is my best candidate so far, a Dura Intl one that has a metal impeller. Plus the impeller looks good. Anyone have this and how does it perform. Does it have a somewhat frictionless spin?
http://www.ebay.com/itm/DURA-INTL-5...an&hash=item2572ee81c3&vxp=mtr#ht_1517wt_1163
http://www.duraintl.com/water.html

This is my next candidate, but I don’t know if the impeller is plastic or metal: http://www.ebay.com/itm/Chrysler-47...van&hash=item1c2a1eae8e&vxp=mtr#ht_577wt_1163
http://www.usmotorworks.com/Prod_WaterPump-Automotive.php

Someone here says the Bosch has a metal impeller, but the ebay auction doesn’t have a good pic of it: http://www.ebay.com/itm/Bosch-97218...van&hash=item3f1ad2a559&vxp=mtr#ht_1295wt_931

Here’s a Bortek but I don’t know much about it: http://www.ebay.com/itm/Bortek-2043...van&hash=item3cc954056d&vxp=mtr#ht_938wt_1139

Here’s the Mopar one, and it is so expensive and yet a PLASTIC impeller: http://www.ebay.com/itm/Mopar-47811...an&hash=item4aafa90497&vxp=mtr#ht_1155wt_1067

How is the Gates water pump? Does it use a plastic or metal impeller?

Any other brands you know about and can tell us about?
 

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The plastic impeller will never pit or corrode. I replaced mine with a Bosch WP that I got cheap from Amazon. The Bosch does have a metal impeller, but the old original pump had a mint condition plastic impeller.
 
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Not sure what brand, but I just used whatever Carquest carried. It worked fine, although took some finagling to mount it due to the impeller sticking out just a tad further than the OEM. X2 on the plastic impeller being just fine to use. The OEM pump I took off used a plastic impeller too if I recall correctly.
 

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I also don't see where the plastic impeller would be a problem, though I have heard various people (mainly without chemistry knowledge/experience) complain about how antifreeze "eats" plastic parts. Honestly, no antifreeze mixture (properly diluted) will affect the structural integrity of a hard plastic impeller. Now, if the coolant gets low and the engine overheats, all bets are off for any plastic part (and a lot of metal ones too) holding shape/strentgh, and that might be enough to do in a plastic impeller. My guess is, though, that if a vehicle was overheated enough to damage the impeller, that other components would be damaged as well. As for parasitic drag, I noticed that all the ones I looked at when I replaced my WP a couple years ago seemed to be a bit tough to turn by hand. I installed the one from O'Reillys and so far (40k miles later) it's been fine.

Nate
 

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I had a bad experience with a loose metal impeller on a new pump. Once the engine warmed up the impeller stopped spinning fast and the engine slowly stated to overheat on my test ride after installation. I took the pump back out and welded the impeller to the shaft and put the pump back in. Since then I plan to spot weld the impeller to the shaft as a precaution. As for plastic impellers I recall a rash of problems with then becoming loose on some engines.

Frank
96 Grand Voyager 3.3L retired
99 DGC Sport 3.3L retired at 137K miles (still running fine for my friend)
07 T&C SWB 3.3L with 41540 miles
 

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Discussion Starter · #7 ·
I had a bad experience with a loose metal impeller on a new pump. Once the engine warmed up the impeller stopped spinning fast and the engine slowly stated to overheat on my test ride after installation. I took the pump back out and welded the impeller to the shaft and put the pump back in. Since then I plan to spot weld the impeller to the shaft as a precaution. As for plastic impellers I recall a rash of problems with then becoming loose on some engines.

Frank
96 Grand Voyager 3.3L retired
99 DGC Sport 3.3L retired at 137K miles (still running fine for my friend)
07 T&C SWB 3.3L with 41540 miles
What brand of water pump with this problematic metal impeller was it?
 

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What brand of water pump with this problematic metal impeller was it?
I am not sure since it was about 10+ years ago on my 1989 Eagle Summit (not sure if it was Advance Auto or Autozone). My bias is to trust a metal impeller before a plastic/nylon one especially since I can spot weld the metal one and be positive. Hopefully it won't rust and come apart as long as I have the vehicle.

Frank
 

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I’m looking for the BEST water pump for my 2005 SXT… This morning I went to Autozone and their Duralast water pump was plastic and spinning it – it had high friction… So a good water pump would also have a good seal as well as low parasitic friction + a METAL impeller. The one at O’Reilly’s was plastic impeller too.

So looking up an ebay search, here are the various brands of water pumps: 2005 dodge grand caravan water pump | eBay

This is my best candidate so far, a Dura Intl one that has a metal impeller. Plus the impeller looks good. Anyone have this and how does it perform. Does it have a somewhat frictionless spin?
http://www.ebay.com/itm/DURA-INTL-542-04230-Water-Pump-/160842023363?pt=Motors_Car_Truck_Parts_Accessories&fits=Year:2005|Make:Dodge|Model:Grand+Caravan&hash=item2572ee81c3&vxp=mtr#ht_1517wt_1163
http://www.duraintl.com/water.html

This is my next candidate, but I don’t know if the impeller is plastic or metal: http://www.ebay.com/itm/Chrysler-4781157AC-Engine-Water-Pump-/120965738126?pt=Motors_Car_Truck_Parts_Accessories&fits=Year:2005|Make:Dodge|Model:Grand+Caravan&hash=item1c2a1eae8e&vxp=mtr#ht_577wt_1163
http://www.usmotorworks.com/Prod_WaterPump-Automotive.php

Someone here says the Bosch has a metal impeller, but the ebay auction doesn’t have a good pic of it: http://www.ebay.com/itm/Bosch-97218-New-Water-Pump-/271032952153?pt=Motors_Car_Truck_Parts_Accessories&fits=Year:2005|Make:Dodge|Model:Grand+Caravan&hash=item3f1ad2a559&vxp=mtr#ht_1295wt_931

Here’s a Bortek but I don’t know much about it: http://www.ebay.com/itm/Bortek-20436-New-Water-Pump-/261075764589?pt=Motors_Car_Truck_Parts_Accessories&fits=Year:2005|Make:Dodge|Model:Grand+Caravan&hash=item3cc954056d&vxp=mtr#ht_938wt_1139

Here’s the Mopar one, and it is so expensive and yet a PLASTIC impeller: http://www.ebay.com/itm/Mopar-4781157AC-Engine-Water-Pump-CHRYSLER-DODGE-PLYMOUTH-MINIVAN-3-3L-3-8L-V6-/320774669463?pt=Motors_Car_Truck_Parts_Accessories&fits=Year:2005|Make:Dodge|Model:Grand+Caravan&hash=item4aafa90497&vxp=mtr#ht_1155wt_1067

How is the Gates water pump? Does it use a plastic or metal impeller?

Any other brands you know about and can tell us about?
Take my advice and forget about all of the other opinions you'll read --- I've been an auto dealer for 45 years and was sales mgr at the Chrysler Dealer for 11 years in the 70's-80's --- I've been an independent dealer since August of 1988 and I have bought, reconditioned and sold in excess of 4,000 Dodge/Chrysler minivans since 1988 --- We just replaced an original Mopar water pump with a plastic impeller today in a 2005 Grand SXT that a customer traded in. There were no coolant leaks but the van was, and had been running hot. The cause of failure was the impeller spinning on the impeller shaft. Unfortunately it also now has a cracked cylinder head which will need to be replaced. Yes, it's true that a plastic impeller will not rust but we've replaced several pumps with the plastic impellers that were spinning freely on the shaft. I've never seen a pump with a steel impeller with this problem. I always use a replacement pump with a steel impeller. It's also important to use a good quality anti-freeze with rust inhibitors, preferably Mopar brand and mix it 50/50. I buy the cheap aftermarket pumps on Ebay for about $18 and have never had any problems with them. Just look at the pics and be sure you're getting one with the steel impeller. Hope this info helps. Good luck, Terry
 

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Take my advice and forget about all of the other opinions you'll read --- I've been an auto dealer for 45 years and was sales mgr at the Chrysler Dealer for 11 years in the 70's-80's --- I've been an independent dealer since August of 1988 and I have bought, reconditioned and sold in excess of 4,000 Dodge/Chrysler minivans since 1988 --- We just replaced an original Mopar water pump with a plastic impeller today in a 2005 Grand SXT that a customer traded in. There were no coolant leaks but the van was, and had been running hot. The cause of failure was the impeller spinning on the impeller shaft. Unfortunately it also now has a cracked cylinder head which will need to be replaced. Yes, it's true that a plastic impeller will not rust but we've replaced several pumps with the plastic impellers that were spinning freely on the shaft. I've never seen a pump with a steel impeller with this problem. I always use a replacement pump with a steel impeller. It's also important to use a good quality anti-freeze with rust inhibitors, preferably Mopar brand and mix it 50/50. I buy the cheap aftermarket pumps on Ebay for about $18 and have never had any problems with them. Just look at the pics and be sure you're getting one with the steel impeller. Hope this info helps. Good luck, Terry
How about an aluminum impeller?
 

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On our 01 DGC EX with over 297K miles, I've replaced the water pump (twice), when flushing the system. (Every 140K miles or 5 years) I use the Duralast Gold, with the plastic impeller, with no problems. I only use Mopar coolant. (I've been working on cars for over 30 years).
 

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There was a thread recently, with a poll, all about water pumps and impellers. We pretty much decided unanimously that metal impellers rule. No one likes plastic, and we've heard about them cracking and spinning before. One even broke and had plastic chunks in the cooling system!

I haven't seen a steel impeller in a long time. I haven't even seen a steel impeller on a water pump available for these engines; they are either plastic or aluminum. Since most of the metal in the cooling system is aluminum, and the special coolant used helps aluminum not corrode, I'm okay with it.
 

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I’m looking for the BEST water pump for my 2005 SXT… This morning I went to Autozone and their Duralast water pump was plastic and spinning it – it had high friction… So a good water pump would also have a good seal as well as low parasitic friction + a METAL impeller. The one at O’Reilly’s was plastic impeller too.

So looking up an ebay search, here are the various brands of water pumps: 2005 dodge grand caravan water pump | eBay

This is my best candidate so far, a Dura Intl one that has a metal impeller. Plus the impeller looks good. Anyone have this and how does it perform. Does it have a somewhat frictionless spin?
http://www.ebay.com/itm/DURA-INTL-542-04230-Water-Pump-/160842023363?pt=Motors_Car_Truck_Parts_Accessories&fits=Year:2005|Make:Dodge|Model:Grand+Caravan&hash=item2572ee81c3&vxp=mtr#ht_1517wt_1163
http://www.duraintl.com/water.html

This is my next candidate, but I don’t know if the impeller is plastic or metal: http://www.ebay.com/itm/Chrysler-4781157AC-Engine-Water-Pump-/120965738126?pt=Motors_Car_Truck_Parts_Accessories&fits=Year:2005|Make:Dodge|Model:Grand+Caravan&hash=item1c2a1eae8e&vxp=mtr#ht_577wt_1163
http://www.usmotorworks.com/Prod_WaterPump-Automotive.php

Someone here says the Bosch has a metal impeller, but the ebay auction doesn’t have a good pic of it: http://www.ebay.com/itm/Bosch-97218-New-Water-Pump-/271032952153?pt=Motors_Car_Truck_Parts_Accessories&fits=Year:2005|Make:Dodge|Model:Grand+Caravan&hash=item3f1ad2a559&vxp=mtr#ht_1295wt_931

Here’s a Bortek but I don’t know much about it: http://www.ebay.com/itm/Bortek-20436-New-Water-Pump-/261075764589?pt=Motors_Car_Truck_Parts_Accessories&fits=Year:2005|Make:Dodge|Model:Grand+Caravan&hash=item3cc954056d&vxp=mtr#ht_938wt_1139

Here’s the Mopar one, and it is so expensive and yet a PLASTIC impeller: http://www.ebay.com/itm/Mopar-4781157AC-Engine-Water-Pump-CHRYSLER-DODGE-PLYMOUTH-MINIVAN-3-3L-3-8L-V6-/320774669463?pt=Motors_Car_Truck_Parts_Accessories&fits=Year:2005|Make:Dodge|Model:Grand+Caravan&hash=item4aafa90497&vxp=mtr#ht_1155wt_1067

How is the Gates water pump? Does it use a plastic or metal impeller?

Any other brands you know about and can tell us about?

I just changed mine and got a METAL one!

See this thread here . . .
Water pump Impeller - Metal or Plastic Poll

It's still working well after the swap and upgrade. Put on 5K miles already.
 
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