Powered by Mustang Enthusiasts - Call Now (866) 507-3786

1986-93 Ford Mustang Heater Core Kit w/ Factory A/C - Fox Body by 50resto

Details   |  Description   |  Videos   |  Reviews   |  Community Q&A
Mustang Heater Core Kit w/ Factory A/C (86-93)

Replace your leaking or malfunctioning 86-93 Mustang heater core with this direct replacement!

Item# LRS-18476K

Everyday Low Price: $64.99

In Stock!

Add to cart
Add to Wishlist Call to Order


  • Replaces Original Heater Core
  • Comes With New Replacement Hoses


  • Correct Heater Hose Fitting Sizes
  • OEM Ford Replacement Hoses
  • New Hose Clamps

What's in the Box

  • (1) Heater Core For Mustangs With Factory A/C
  • (1) 3/4" Heater Hose
  • (1) 5/8" Heater hose
  • (4) Heater Hose Clamps

Product Description

Direct Replacement Mustang Heater Core
If your 1986-1993 Mustang heater isn't working it may be time to replace your heater core. A faulty heater core can also result in a coolant leak onto your floorboard which causes steamed up windshields, strong coolant smells in your car, and a constant wet floor on your passenger side floor board. This direct replacement heater core will solve these problems and get your heater working like new again. Pick on up at LatemodelRestoration.com and follow along with one of our installation videos or tech articles to help you with your installation!

-The heater Cores are specific to Factory A/C and Non A/C Cars.
-This heater core fits 1986-1993 Mustangs that were originally equipped with factory A/C. Kit comes complete with Hoses and Clamps which are normally replaced with the heater core.

Product Videos

More videos of this product!

Check out our YouTube channel for even more tech tips, installation videos, how-tos, and more. The best place to go for anything Mustang related!

Community Q&A

Have a question about this item?
Ask the community

Customer Reviews

out of 5 stars
5 stars
8 reviews
5 stars    8
4 stars    0
3 stars    0
2 stars    0
1 star    0

8 of 8 REVIEWS
8 of 8 REVIEWS

  Easy to follow!
By on 2/18/2014
This video was key in getting this heater core swap done efficiently. There were no surprises. Once you get to the heater core removal. You don't have to remove all 4 screws. The back 2 screws are tough, but I was able to remove the driver side front screw easily with a ratcheting box end wrench. I left the passenger side screw in and just lifted the lid. I do wonder if you can open the heater core box with out removing both the front screws.

Before you start this project, be sure to think about any upgrades or fixes you might want to do ie; carpet, cigarette door repair, instrument cluster glass, e-brake park rubber etc. The whole inside of the care will be apart. Then you don't have to wait for your parts to arrive from LRS.

I recommend tightening every screw as you do this job. I did and I fixed a few rattles.

It took me just under 6 hours. And having a friend to help you remove the core and install it back in would be very helpful, but not needed.

Great video, please keep them coming.

Yes, I would recommend this item to a friend!

Was this review helpful to you?

  Hard work but I have heat!!
By on 2/15/2014
Easy to follow install but that's about the easiest part of this job!! Tons of screws that need labeling & separate packing in order not to lose them. Smaller core which makes it easier to fit into the case. Don't forget to apply the foam around the core like I did and have to disassemble twice!!

Yes, I would recommend this item to a friend!

Was this review helpful to you?

  I have heat!
By on 9/23/2014
Replacing the heater core is one, if not the hardest jobs you can do on your Fox. But it is doable with a little patience and a good buddy to lend a hand. By far the hardest part is getting the old heater core out of the compartment with the AC still hooked up under the hood. But once out, this replacement core fit excellently and was easier to install than the original. The foam around the edges, in addition to sealing it up nicely inside the heater box, had a dampening effect to reduce rattles and directs maximum air through the core. A big plus that the heater hoses comes with the proper restrictor. My core blew out because one of the owners before me put on the blue silicone heater hoses and did not put a restrictor in. This is a great buy and works better than the original if you ask me.

Yes, I would recommend this item to a friend!

Was this review helpful to you?

  Fit like a Glove
By on 3/25/2014
Was not looking forward to doing a heater core on my mustang. But with my luck! I'm doing two. Yes 2. Both 91, a convertible and a Notchback. Unfortunately the core went out on the notch the day before I ordered the cores. Any ways I've done the notch and putting in the core is the least of problems. Getting to the core is a days task. But thanks to the latemodelrestoration.com video it made things easier. Will be doing the convertible in the next few days. Thanks LRS.

Yes, I would recommend this item to a friend!

Was this review helpful to you?

  complete heater core kit
By on 3/7/2014
This comes with everything you need for complete heater core replacement. The heater core, both hoses with clamps and the flow restrictor if needed, even foam insulation to wrap the core with.

Yes, I would recommend this item to a friend!

Was this review helpful to you?

  awesome deal
By on 10/22/2014
Fit and works great! Install videos are a big help. Nice getting everything you need in one pack

Yes, I would recommend this item to a friend!

Was this review helpful to you?

  Great Deal
By on 3/4/2014
great item, perfect price for a kit. super satisfied customer.

Yes, I would recommend this item to a friend!

Was this review helpful to you?

  Exact item good price fast shipping
By on 9/19/2014
The exact fit part

Yes, I would recommend this item to a friend!

Was this review helpful to you?

Vehicle Applications

Ford Mustang - 1986 (86) - 1987 (87) - 1988 (88) - 1989 (89) - 1990 (90) - 1991 (91) - 1992 (92) - 1993 (93)

About This Brand

50resto - Dedicated To The Preservation Of The Fox Body Mustang
50resto is your trusted source for 1979-93 Mustang Foxbody restoration products. Buy 50resto products from Latemodel Restoration Supply and receive the best value, quality and industry-leading customer service. Whether you need Fox Body Mustang weatherstrip, headlights, taillights, seals, body panels, hardware, door handles, trim parts, carpeting or upholstery, 50resto is the brand you should demand. SVE and 50resto Warranty One Year Hassle Free Replacement SVE and 50resto products are warranted to be free from defects in materials or workmanship for one year from date of purchase. What does this warranty cover? YOU! That’s right, whether you ordered a SVE brand Mach I grille delete or a 50resto brand light kit, if your product fails within a year of your purchase we got your back! Some conditions will apply.

Look for Similar Items by Category

Ford Mustang Parts » Mustang A/C & Heating » Mustang Heater Cores
1979-1993 Mustang Parts » 1979-1993 Mustang Engine Parts » 1979-1993 Mustang Air Conditioning & Heating

Products by Vehicle