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VW MKIII-A3/B4 TDIs This is a discussion about MKIII-A3/MkIII Jetta/Golf (<99.5) and B4 Passats (96,97) TDI's. Non TDI related postings will be moved or removed.

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Old January 27th, 2019, 09:18   #1
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Join Date: Jun 2004
Location: Edgewood,New Mexico
Fuel Economy: 49 high way 48city 38 4x8 foot trailer
Default Which parts makers to buy?

I need a new Thermostat and Water pump ( very slight leak at the weep hole). Who's brands are worth the money? There are many to choose from.
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Old January 27th, 2019, 16:16   #2
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Location: Northern MD
Fuel Economy: Race: 12mpg, Gandma:65mpg

OEM or go home. Im not trying to be an OEM snob but things like water pumps, alternators, CV axles ect.... are all garbage when it comes to reman's and cheep replacements.
Whatever you get, get one with a metal impeller and a RUBBER, not quark, gasket.
Thermostats are all about the same.
ID parts is probably the place to go now.
Parts for our MK3's are getting harder to find and that means that either you get cheep crap or only the good stuff now. Nothing in between much anymore.
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Old January 27th, 2019, 19:33   #3
Steve Addy
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Join Date: Aug 2002
Location: Iowa
TDI(s): 97 Mk3

Since VW never actually made a water pump I don't feel bad buying in aftermarket. There are some I would avoid though, like Uro branded stuff. I think my last water pump might have been GMB, which I know some people have complained about but so far hasn't given me anything to worry about.

Also there's Graf, Geba, or Hepu which are all good brands to use. I think one of the WP's on my Mk3 was a VW pump but I don't recall the brand on it. It was not any of the names I mentioned though.

97 Jetta TDI, 90 B3V TDI, 92 MB 300SD
the magic triangle spins in the peanut and then apex seals come out
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Old February 6th, 2019, 19:33   #4
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Location: Nobleboro, Maine
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In addition to IDParts, CascadeGerman can get you just about anything possible.

FYI, the last I knew, water pumps were easily sourced and had plenty of options available.
'97 B4: 453,000 miles FOR SALE! Malone 3, PP520's, Stage 2 cam, SBC3, ARP studs, 2 1/4" exhaust, 2.5" Cat, no mufflers or EGR.
'96 B4V: 356,000 miles Malone 2+, PP520's, 6 speed, 02J short shifter, E-Codes, G60 brakes, Evo plate, DMF, stainless exhaust, heated leathers, cold weather package
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Old February 7th, 2019, 08:44   #5
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Itís tough to say with brands. CRP / Rein do very well with sourcing OEM parts at a much reduced price. For example I recently got several coolant hoses and flanges from Rein and compared them side by side with the OEM part and they were identical aside from lacking the VW/Audi logo (and the dealer price.) in some cases there were marks where they had sanded off the molded VW logo. So I would trust Rein parts.
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Old February 7th, 2019, 11:13   #6
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VW has not ever, to my knowledge, made either thermostats or water pumps. We have a Geba water pump with housing on special right now https://www.idparts.com/water-pump-w...a3-p-7092.html that's a pretty good deal. Metal impeller. We have a bunch of different thermostats including OEM, although I'd probably go with the Mahle.
2002 Jetta wagon, 407K, RC3+; 1993 Mercedes-Benz 300D 2.5, 197K; 1997 Passat, 289K; '99.5 Golf, 260K; 2011 335d, 63K; 2015 Golf Sportwagen, 14K. Principal, http://www.idparts.com
Kid's cars: 2002 Golf TDI, 2002 Jetta TDI, 2015 Passat TDI SEL
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