CANADIAN CUSTOMER: Due to the Canada Postal Service strike, we recommend choosing DHL Express.
Note: UPS Mail Innovations is delivered by the post office and Canadian deliveries will be affected by the strike.

International Customers Click Here [Updated 6/2024]

International Customers

Due to some ongoing challenges with the software we use to generate customs data and print shipping labels for international orders,
orders may take upto 7 days before we are able to generate the shipping label. If the order has USED item or items that need to be shipped from the supplier to us, it can take significantly longer.

Also be aware that even though we ship items with the proper documentation to show that duties and taxes are prepaid, some Postal Services are ignoring this and still charging these fees at delivery. If this occurs to you, please send us a copy of the receipt showing the tracking number with the fees paid and we can get the Duties/Taxes we charged to you refunded.

UK Customers / EU Customers

We are using a new shipping service where international shipments now include the Duties/Tax/Fees, so currently we can not offer USPS/Mail Innovations if the order is over 135GBP/150EUR, since USPS can not pay duties/taxes. If the order is less than 135GBP/150EUR, we can pay the taxes directly to the EU/UK and we can ship USPS/Mail Innovations*. All orders over 135GBP/150EUR have to ship UPS/DHL so we can use DDP to cover the Duties/Tax/Fees. This has allowed us to resume shipments of any value to the UK and EU.

TIP: You will likely be able to ship your order for less cost if you ship any items over 135GBP/150EUR on one order via UPS, then break the rest of the order up into orders of less than 135GBP/150EUR.

By breaking your orders up into less than 135GBP/150EUR:

you will avoid the import duties on those orders
less expensive shipping methods are available
you will avoid some UPS fees

Canadian Customers

We have worked with UPS to waive some of the brokerage fees. The rates shown now include all UPS fees. We have also added DHL, which offers lower cross boarder fees.

Our shipping provider has added Duties Prepaid options for US Postal Service options to Canada. This has allowed us to resume USPS shipments to Canada.

However, beware that this is a new process for the Post Office, so sometimes Canada Post shows the duties and taxes COD, when they are actually prepaid. If this happens, first inform Canada Post that the shipment was sent duties prepaid (DDP). If they still require you to pay the duties before delivery, please contact us.

Turkey Customers

The international shipping software we use requires that we pre-collect and pre-pay the duties and taxes. Because of recent changes to Turkey import laws, Turkey no longer supports this. Because of this you will need to use a shipping broker for us to ship items to you.

US Postal Service (USPS)

Our new international shipping system supports international shipments via USPS only if the order total (including shipping to most countries) is below the Duty/Tax De Minimis for your country (View De Minimis Chart).
Exceptions:
UK orders upto 135GBP
EU orders upto 150EUR

The US Postal Service (USPS) has suspended services to over a dozen countries (see complete list).
UPS Worldwide Services \ DHL Worldwide can still be delivered to these locations.

Firewall Hose Plugs - Heater and A/C - PAIR - 1" Hole - Repro ~ 1967 - 1973 Mercury Cougar - 1967 - 1973 Ford Mustang

New Firewall Hose Plug Heater or Air Conditioning Fire Wall Hole 1967 1968 Mercury Cougar Ford Mustang

1967 Mercury Cougar
1968 Mercury Cougar
1969 Mercury Cougar
1970 Mercury Cougar
1971 Mercury Cougar
1972 Mercury Cougar
1973 Mercury Cougar
1967 Ford Mustang
1968 Ford Mustang
1969 Ford Mustang
1970 Ford Mustang
1971 Ford Mustang
1972 Ford Mustang
1973 Ford Mustang

5 Review(s) 0

Item #: 30388

Price: $1.15

Cost: 92

Earns: 5

Bonus: 0

Availability

In-Stock Item - Ships: Next Business Day

Applications

1967 Mercury Cougar
1968 Mercury Cougar
1969 Mercury Cougar
1970 Mercury Cougar
1971 Mercury Cougar
1972 Mercury Cougar
1973 Mercury Cougar
1967 Ford Mustang
1968 Ford Mustang
1969 Ford Mustang
1970 Ford Mustang
1971 Ford Mustang
1972 Ford Mustang
1973 Ford Mustang

Description

Rubber plugs for sealing the holes in the firewall of any 1967-68 Mercury Cougar or Ford Mustang. These plug the firewall holes if you don't have air conditioning or if you have deleted your heater core. Fits 1" body panel holes for all years.

Sold as a pair.

Original Ford part 377678-S2

Specifications:

Shipping Weight: 0.02 LBS

(weight shown may be the dimensional weight)

5 Reviews (5.00 of 5 Rating)

5.00 out of 5 stars
Based upon 5 Review(s).

5 Stars

100%

4 Stars

3 Stars

2 Stars

1 Stars

Write a review!

Robert Waldrep

Indianapolis, IN

2021

Fire wall plugs

3/14/2022

5.00 out of 5

Material:

Fit:

Craftsmanship:

Correctness:

Pros:

great fit and function

Cons:

none

These fit perfectly and covered the factory heater hose holes in the firewall. my car is an AC car but these plugs were missing.

RoddinRob

2021

Correct size!

12/20/2021

5.00 out of 5

Material:

Fit:

Craftsmanship:

Correctness:

Pros:

Cons:

I tried other plugs for these holes & none fit right. These ones go in & STAY IN.

Fabio

Melbourne, Australia

2014

6/2/2019

5.00 out of 5

Material:

Fit:

Craftsmanship:

Correctness:

Pros:

Cons:

Great fitting reproduction part.

Mark

2014

Awesome Fit.

2/12/2016

5.00 out of 5

Material:

Fit:

Craftsmanship:

Correctness:

Pros:

Quality%21

Cons:

Exact correct fit. Nice OEM parts.

67 XR7

Cleveland, Ohio

Snug Fit

5/10/2014

5.00 out of 5

Material:

Fit:

Craftsmanship:

Correctness:

Pros:

Cons:

I used this on a firewall hole that was next to the a/c lines.

Product Q&A

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<p>I have enjoyed dealing with Don and his group for years and now that I own more cougars the need is greater than ever. I look forward to their videos and easier ways to assemble they have been most helpful. I can navigate there catalog...

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What did you LIKE about your experience? * : I am fairly new to WCCC, four or five orders (at the time of writing), but I am blessed to have found WCCC for sure. I had a small problem, couldn't find anything to work for the condensation drain on my...

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I have been working with Don Rush and his team for close to 20 years. In all of these years with many sales transactions I can say they have been 2nd to none. They have always been not only helpful but extremely knowledgeable. I certainly continue...

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I have made many purchases online with WCCC but chose this time to make a 1400 mile round trip and visited them in person. I brought a van load of parts with me that needed a home. Don helped unload them then quickly assessed the value which I...

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