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Heatercore size problem UUUUGGGHHH

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Old Sep 9, 2009 | 07:50 PM
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Heatercore size problem UUUUGGGHHH

76 F250 390 no AC I took out my old heatercore, it measures 7" tall Got another one from Napa. It is 9" tall. They have two listed. One has the pipes coming off the side and one where there off the end. Mine is off the end. I've called two other places and they show the same thing. Any ideas? LMC shows it on their catolog.
 
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Old Sep 9, 2009 | 08:02 PM
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Did they sell you the "high output" heater core?
 
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Old Sep 9, 2009 | 08:09 PM
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They sold me the only one listed that had the hoses coming off the right way. I believe it was the deluxe
 
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Old Sep 9, 2009 | 08:10 PM
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They sold you the high-output heater.

Josh
 
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Old Sep 9, 2009 | 08:21 PM
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Here's a pic of the difference

 
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Old Sep 9, 2009 | 11:13 PM
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The one on the left is a H.O. heater core, yours is a standard heater core.
 
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Old Sep 9, 2009 | 11:20 PM
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Nobody seems to have a listing for mine. Anybody got a part # I can give them. Should I go to the wrecking yard and look for a HO assembly to put in mine beings it's a crew cab? Is there a way to tell if it is HO before tearing one apart?
 
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Old Sep 9, 2009 | 11:31 PM
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398016 for Checker Auto

NHC 6603519 for Napa

NHC 6603001 is the one they sold you right?

Now, when I checked the Checker website the picture doesn't show the right core. I actually went thru this last December.

Josh
 
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Old Sep 9, 2009 | 11:43 PM
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Economy heater assembly (core): D3TZ18476C. If you can find its ID number, it should read: D3TE-18476-BA.

High Output heater: C60Z18476B. This is the 8" core.

=====

If possible, cross-reference these parts to third party part numbers.
 
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Old Sep 9, 2009 | 11:59 PM
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D3TZ18476C crosses to NAPA 6603519
 
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Old Sep 10, 2009 | 12:05 AM
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Thanks FTE'rs You guys are great!
 
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Old Sep 10, 2009 | 07:19 AM
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Before you take the heater core back, check to see if you have a high output heater that a previous owner put a regular core in. I have a HO heater in my truck that was that way. I just took the old core in and bought one like the old one. When I went to install it I noticed it didn't fit right. I went back and got the high output core and it fit great. If you use a regular core in a high output heater you get a lot of cold air blowing past the core so it never gets very warm, and if you live in an area with -30 weather you really notice it.
 
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Old Sep 10, 2009 | 08:28 PM
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Thanks for all the reply's. The 6603519 was correct number. The pic in there book was wrong. Had them order that number and the tubes were right. Funny thing is, it's $2 more for the smaller heater core. Go figure. Thanks again.
 
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Old Sep 11, 2009 | 07:16 PM
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That's kinda wierd, I was told all supercabs came with the H.O. heater core and since your's don't have it I'm thinking someone changed it out???
 
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