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Balkamp/Napa rad caps? (Motorad) #4485961
08/11/17 04:49 PM
08/11/17 04:49 PM
Joined: Nov 2016
Posts: 1,283
WI
HoosierJeeper Offline OP
HoosierJeeper  Offline OP
Joined: Nov 2016
Posts: 1,283
WI
I'd like to put a new one on my XJ, are the Napa/Balkamp (aka Motorad, at least for this app) ones good or should I get an OEM one?

Thanks!

Last edited by HoosierJeeper; 08/11/17 04:57 PM.

15 Jeep KL Limited V6: Formula Shell 5W20
07 LR3 SE V8: Maxlife 5W30
05 Jeep KJ Limited: PHM 5W30
96 Jeep XJ Country: STP HM 5W30 (winter)
Re: Balkamp/Napa rad caps? [Re: HoosierJeeper] #4485967
08/11/17 04:54 PM
08/11/17 04:54 PM
Joined: Jul 2013
Posts: 2,328
Outer Banks, NC
NormanBuntz Offline
NormanBuntz  Offline
Joined: Jul 2013
Posts: 2,328
Outer Banks, NC
The last two I bought on eBay and were made by Lucas. One was $4 and one was $6 with free shipping. The NAPA one should be as good as any. Keep the old one in your glovebox for a spare. BTW I'll be motoring to Chippewa Falls, WI in two weeks enroute to the Canadian Rockies.


2017 Honda Odyssey SE, 17K
2013 Honda Accord LX, 58K
2007 Honda Ridgeline RTS, 89K
2007 Infiniti M35, 107K
Re: Balkamp/Napa rad caps? [Re: HoosierJeeper] #4485980
08/11/17 05:19 PM
08/11/17 05:19 PM
Joined: Nov 2016
Posts: 1,283
WI
HoosierJeeper Offline OP
HoosierJeeper  Offline OP
Joined: Nov 2016
Posts: 1,283
WI
Just looked at the OE one on it and it's a Motorad, Mexican made. So is the Napa one...so I presume it should work. I think Motorad makes Tstats for Jeep as well.

Sounds like a fun trip! I'm about 1.5 hours due south of Chippewa Falls. Going to get some Leininkugels?


15 Jeep KL Limited V6: Formula Shell 5W20
07 LR3 SE V8: Maxlife 5W30
05 Jeep KJ Limited: PHM 5W30
96 Jeep XJ Country: STP HM 5W30 (winter)
Re: Balkamp/Napa rad caps? [Re: HoosierJeeper] #4485998
08/11/17 05:40 PM
08/11/17 05:40 PM
Joined: Apr 2006
Posts: 9,300
Birmingham, AL
01rangerxl Offline
01rangerxl  Offline
Joined: Apr 2006
Posts: 9,300
Birmingham, AL
I've never had an aftermarket cap actually fail, but I always notice cracks forming in the gasket after maybe a year. OE caps don't seem to have that issue so soon.

Even though Motorad is the supplier, the NAPA cap may or may not be the same as the OE one. No harm in trying it though.


2002 Ford Ranger XLT | 3.0 V6 Auto 2WD | 224K miles
1994 Ford Ranger STX | 4.0 V6 Manual 4X4 | 200K miles
1994 Ford Explorer XLT | 4.0 V6 Auto 4X4 | 246K miles
Re: Balkamp/Napa rad caps? [Re: HoosierJeeper] #4486157
08/11/17 09:12 PM
08/11/17 09:12 PM
Joined: May 2013
Posts: 2,163
Saskatchewan, Canada
Johnny2Bad Offline
Johnny2Bad  Offline
Joined: May 2013
Posts: 2,163
Saskatchewan, Canada
Almost any OEM-quality cap is fine. They have to hold a very specific pressure range so there is no room for variation.

You can look at aftermarket race-oriented caps which will hold higher pressure, but your entire cooling system has to be able to hold that pressure. Not really needed in a non-track car.


'57 FL Straight 50 wt
'90 Miata 1.8L w/Rotrex Supercharger [Mobil1 0W-40]
'96 Ram 1500 [3.7L Mobil1 0W-20 / 1L 15W-50]
'01 PT Cruiser [Mobil1 0W-40]
Re: Balkamp/Napa rad caps? [Re: HoosierJeeper] #4486399
08/12/17 08:18 AM
08/12/17 08:18 AM
Joined: Nov 2016
Posts: 1,283
WI
HoosierJeeper Offline OP
HoosierJeeper  Offline OP
Joined: Nov 2016
Posts: 1,283
WI
Had to stop at O'Reilly's for some other stuff and their caps are Motorad, so I got one of those and put it on.


15 Jeep KL Limited V6: Formula Shell 5W20
07 LR3 SE V8: Maxlife 5W30
05 Jeep KJ Limited: PHM 5W30
96 Jeep XJ Country: STP HM 5W30 (winter)

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