heater core replacement

Reply Subscribe

Thread Tools

Search this Thread

Nov 12, 2013 | 02:02 PM

abyars111

Thread Starter

Elder User

Joined: Jan 2012

Posts: 896

Likes: 0

From: AL

heater core replacement

I've got to replace the leaky heater core in my crew cab. Are there any special tips are is it pretty straightforward?

My truck does not have integral A/C. I have the regular heater with fresh air intake.

Nov 12, 2013 | 05:29 PM

JEFFFAFA

Hotshot

Joined: Mar 2013

Posts: 14,255

Likes: 199

From: Phoenix, Az.

It's been a couple years since I took the heater box out-a my parts truck. As I recall it was super easy. Couple of hoses,couple of cables, and I think about 4 nuts on the firewall under the hood.

Nov 12, 2013 | 08:50 PM

51MHF5

Senior User

Joined: Jun 2009

Posts: 415

Likes: 1

From: Bearspaw Alberta Canada

It's very straight forward and not that you need it Alabama but you can get a heavy duty heater core for a few bucks more...

Nov 12, 2013 | 08:54 PM

abyars111

Thread Starter

Elder User

Joined: Jan 2012

Posts: 896

Likes: 0

From: AL

oh we need some heat in north AL, at least my daughters do, how do I find the HD core, I only see one listed at the parts store

Nov 12, 2013 | 09:15 PM

abyars111

Thread Starter

Elder User

Joined: Jan 2012

Posts: 896

Likes: 0

From: AL

I checked O'reily's website and they list a HD core, it is taller, for a Dentside truck. Will this fit in the Bumpside heater assembly? The pipe connections look to be in the same location. The part number for the dentside HD heater core is Murray 399023. The part number listed for the dentside trucks is Murray 399024.

Nov 12, 2013 | 09:34 PM

51MHF5

Senior User

Joined: Jun 2009

Posts: 415

Likes: 1

From: Bearspaw Alberta Canada

My radiator parts place asked me if I wanted the std or High Output and seeing as mine came with the factory HO unit that's what I got. Maybe try a radiator shop?

Nov 12, 2013 | 09:46 PM

51MHF5

Senior User

Joined: Jun 2009

Posts: 415

Likes: 1

From: Bearspaw Alberta Canada

I just went back through my old posts and it was a high output blower motor not heater core, sorry.

Top 10 Fords at 2026 Carlisle Ford Nationals

Joe Kucinski

3 Best / 3 Worst Parts of Modern Ford Ownership

Brett Foote

10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

Pouria Savadkouei

Every 2026 Ford Engine Explained

Brett Foote

10 Ugly Ford Trucks That We Still Kinda Love

Joe Kucinski

10 Things Every Truck Owner NEEDS (2026 Edition)

Michael S. Palmer

Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

Verdad Gallardo

Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

Joe Kucinski

2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

Brett Foote

Top 10 Ford Truck Tragedies

Joe Kucinski

Nov 12, 2013 | 10:22 PM

51MHF5

Senior User

Joined: Jun 2009

Posts: 415

Likes: 1

From: Bearspaw Alberta Canada

I'll see if I can find it, it was 6 or 7 years ago that I got it. Seeing as it was a factory option maybe one of our number gurus can come up with a number.

Nov 12, 2013 | 11:01 PM

#10

abyars111

Thread Starter

Elder User

Joined: Jan 2012

Posts: 896

Likes: 0

From: AL

After doing some checking I don't think the dentside HO heater core will fit in the bumpside heater box. I'll order some new foam seals and replace them while I have this thing apart.

Nov 13, 2013 | 04:10 AM

#11

jowilker

Fleet Owner

Joined: Jun 1999

Posts: 24,552

Likes: 74

From: Creedmoor, North Carolina

Anthony, I did some looking on the Advance Auto site there are two listed 399024 & 399023, The 23 lists for 76 and does not fit a 72 F100 (just picked one). They look the same, and I have read here that they use same through our year range.

Mr. Wilson is not posting just now, so use your own judgement.

If it's getting hot water in the box and cold air from outside isn't overcoming it, you should have heat from 24.

There is a lot of air leak in my truck and heating is harder that it once was.

John