Heater Seal Without Air Kit 1965-1968

CJ's Part Number: HSK1

Regular Price: $15.99

Special Price: $11.19

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Heater Seal Without Air Kit 1965-1968
Heater Seal Without Air Kit 1965-1968 Play Heater Seal Without Air Kit 1965-1968 Video 1

Product Description

Heater Seal Kit for All 1965-1966 Mustangs and 1967-1968 Mustangs Without Air.

We recommend installing a new complete heater seal kit when you replace the heater box assembly. Old seals can let air escape from the box which will not flow through the air vents.

This is a complete heater seal kit with everything you need to replace the original seals.

Will fit 1965-1966 Mustangs with air conditioning and with out.

Similar Mustang Parts

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Mustang Applications

This product will fit the following Ford Mustang years:

Product Reviews

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Heater Seal Without Air Kit 1965-1968 is rated 4.7778 out of 5 by 9.
Rated 5 out of 5 by from Nice fit redid my heater box so now no more drafts and the air is circulated to it's selected port.
Date published: 2015-08-12
Rated 5 out of 5 by from Must-buy kit for heater rebuilds I had to replace my firewall insulation, so I figured that I may as well rebuild the heater box as well. Good thing, too, as the seals in my heater box looked to have been nonexistent since the 80s. Make sure to use spray adhesive, and be very careful to not shatter the fiberglass heater box when you reinstall the components. Also, the CJs instructions were fantastic; couldn't have done this install without them.
Date published: 2015-08-18
Rated 4 out of 5 by from Heater Seal Kit - Good Review The seal kit was good although the description didn't alert that some type of adhesive would be needed. I assumed (incorrectly) that each piece would have had "peel and stick" pieces. Thankfully I had a can of spray adhesive in stock. Time will tell if the pieces stay in place. The drawing could have been better detailed as to where some of the pieces fit. Otherwise, the fit was good and product was acceptable.
Date published: 2015-04-22
Rated 4 out of 5 by from Good Kit Working on my original '68 Mustang heater box. The kit had everything I needed including the heater-blower seal (from the heater box to the fire-wall). Everything fit well, however, the instruction diagram was a poor photocopy and was really difficult to read, thank God for Youtube.
Date published: 2015-04-16
Rated 5 out of 5 by from Heater Seal Kit Good product I have 2 1967 Mustangs did one and I can tell the difference in both air flow and temp. Only improvement would be maybe a peel away self stick on one side would take the install to the next step.
Date published: 2015-02-19
Rated 5 out of 5 by from Simple & Effective Fix All of my seals were gone or rotted away in my my heater box. This kit restore it back to glory and it was really simple to do. No more weird noises coming from the heater any more!
Date published: 2015-01-26
Rated 5 out of 5 by from awesome product. fits well Where I Live is a very warm climate so having heat enter the car in summer is not very comfortable, the kit sealed my old heater just fine
Date published: 2015-08-02
Rated 5 out of 5 by from Nice fit! Great kit! If your heater box was as disgusting as mine then you need this kit! (dried out seals, full of mice) Every seal fit nicely
Date published: 2015-01-07
  • 2015-11-26T08:40CST
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Product Questions


I just purchased the heater box seal kit, Question is how to adhere the pieces?

Asked by: GPhrye
You can use a spray on adhesive or weatherstrip adhesive.
Answered by: rk cjpp
Date published: 2015-11-04
  • 2015-11-26T08:54CST
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Product Video

Heater Seal Without Air Kit 1965-1968 Video Transcript
By Bill Tumas: We're here with a heater seal kit, fitting 1964 through 1968 Mustangs. This 15-piece seal kit gives you everything necessary to reseal the heater box in your 1964 through 1968 Mustang. It will fit '64 through '66 with or without factory air conditioning, and will fit '67 through '68 without factory air conditioning. The only difference between the two kits is this seal here is for your '64 through '66 , while this one here will fit your '67 through '68. Whether you're replacing a heater plenum or rebuilding your original heater box, make sure you pick up one of our heater seal kits to make the system work properly.