Heater Plenum 1965-1968

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CJ's Part Number: HP1
MSRP: $25.65
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Heater Plenum 1965-1968
Heater Plenum 1965-1968 Heater Plenum 1965-1968 Heater Plenum 1965-1968 Heater Plenum 1965-1968 Heater Plenum 1965-1968 Heater Plenum 1965-1968 Play Heater Plenum 1965-1968 Video 1

Product Description

Heater Plenum for all 1965-1966 Mustangs and 1967-1968 Mustangs without Air Conditioning.

If you're worried about the heat or defrost in your 1965-1968 Mustang without air conditioning, than take a few minutes to replace your heater plenum with this upgraded part from CJ Pony Parts!

Heater Plenum Features and Benefits:
- Direct-fit reproduction of factory original
- ABS plastic material for enhanced durability
- Includes flapper door
- Cable clamp and screw already attached
- Inner door already has closed cell foam bumpers installed

 

This direct-fit replacement heater plenum is molded from new ABS plastic for improved durability over the factory cardboard plenum. This high-quality plenum will attach to the heater box and allows the hot air to travel to the dash and defrost the windshield. The best and easiest time for this plenum to be installed is when you're already working on your heater box--this will add just a few extra minutes to overall installation time but will provide a dramatic improvement.

Please Note: This heater plenum will fit all 1965-1966 Mustangs as well as all 1967-1968 Mustangs without air conditioning.

Whether you’re looking for an exterior mirror, wheels and tires, headlights and taillights or a set of interior upholstery, CJ’s has the parts you need to complete your classic Mustang restoration with ease! CJ’s has the parts you need to bring your early model Mustang build back to life--browse our huge selection of restoration parts for your pony today!

Order a Heater Plenum for your 1965-1966 Mustang or 1967-1968 Mustang without Air Conditioning from CJ Pony Parts today!

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Installation Instructions

Mustang Installation

Mustang Applications

This product will fit the following Mustang years:

Product Reviews

Write a review
Heater Plenum 1965-1968 is rated 4.5 out of 5 by 42.
Rated 5 out of 5 by from easy install, looks great, works well Replaced my cardboard plenum because it ripped after it got wet from leaking anti-freeze. I decided to paint it to match the rest of the original interior, dark red metallic. Purists will shake their heads, but the two shades of black breaking up the visual continuity of red carpet to red dash (metal and padded) just bothered me. Let us face it: Ford got cheap some times, and this is one area they tried to squeeze the last dime from production. Anyway, I'll know soon enough how well it all fares when it gets really cold.
Date published: 2017-08-14
Rated 4 out of 5 by from Good but maybe TOO good This plenum is made of thick plastic which is definitely better than the cardboard original. That's a good thing except if you try to attach it to the blower outlet, whether original or repro, it may be TOO thick and not flex enough to allow it to slide on easily. I bought the repro heater box and the outlet was too large for the plenum. I tried it on my original broken box heater outlet and it still wouldn't flex enough to slide on without some modification on one part or the other. I wound up cutting slits in the blower outlet to get this plenum to fit. Not really the plenum's fault but making it a bit more flexible would help.
Date published: 2018-11-12
Rated 5 out of 5 by from Small, seemingly insignificant part -- NOT! I was desperate to restore heat to my beloved '66 convertible, with cooler days coming. I ordered the heater core and set about getting the hot air flowing. Then, I saw the existing heater plenum - cardboard! It was ratty, ripped, and almost non-functional. If you are restoring your heating system, BUY THIS. It's a cinch to install (much easier while you have the heater box out...I found out the hard way) and the flaps that control defrost and heat function much better within the rigid ABS frame. DO IT!
Date published: 2015-01-07
Rated 4 out of 5 by from No cardboard Nice replacement to the original cardboard plenum. The plastic material is nice and it comes ready to install with the door
Date published: 2015-03-20
Rated 5 out of 5 by from works great ! ! ! had to fix our Heater Core so decided to take care of the whole heater assembly and also picked up a new heater plenum. with our weather starting to change here in oklahoma we tested it out today and we had a nice heater going within the car and it was great to finally have a defroster!!!
Date published: 2015-10-29
Rated 5 out of 5 by from nice upgrade had original cardboard-ish one that was beat up BAD. Replacement is plastic so more firm to work with and fit nicely. Overall, I'm happy with the replacement, especially given the price.
Date published: 2018-03-03
Rated 5 out of 5 by from excellent fit My heater plenum was broke where cable was located. New one is better material (plastic) unlike the cardboard type of material original is made from.
Date published: 2015-02-01
Rated 5 out of 5 by from Heater Plenum Great replacement for the OEM Plenum by far. Have thought of drilling some holes on the end to let air flow towards my feet also not just the seat.
Date published: 2015-02-19
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Product Video

Heater Plenum 1965-1968 Video Transcript
By Bill Tumas: We’re here with a reproduction heater plenum for your 1964 thorough 1968 Mustang. This reproduction plastic heater plenum will fit all 1964 through '66 Mustangs, as well as '67 through '68 when not equipped with factory air conditioning. Now, it's next to your heater box and it's going to connect your two defroster hoses. The reproduction heater plenum includes the flapper door and comes ready to install.