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Water Shield Vapor Barrier for 74-78 Ford Mustang II Unpainted Mylar Left Right

Item #: 271901
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Water Shield for 1974 Mustang II

A new vapor barrier protects your interior from hidden water damage.

  • Prevent moisture from soaking door panels and carpets.
  • Reduce the risk of rust forming inside doors.
  • Eliminate musty odors caused by trapped water.
  • Protect restored interior trim from long-term damage.

Upgrade your 1974 Ford Mustang II with our Water Shield Vapor Barrier for superior protection against moisture. Ensure a perfect fit with classic car weatherstripping. Shop now!

Specifications:

  • Material: Mylar
  • Vehicle Fitment: Please see compatibility chart or give us a call to confirm
  • Vehicle Placement: Left. Right
  • Number of Pieces: 2

Q: What is a water shield vapor barrier?

This barrier installs behind door panels to prevent water from reaching interior trim and cabin surfaces.

Q: What issues occur when the vapor barrier is damaged?

Moisture can soak door panels, carpets, and insulation, leading to odors, warping, and rust.

Q: Are there other names for a water shield vapor barrier?

Manufacturers may use several moisture-control terms.

  • Door vapor barrier
  • Water shield film
  • Moisture barrier sheet
  • Door water deflector
  • Interior door liner

Names vary by manufacturer and OEM terminology.

Q: Does every door need one?

Yes, factory designs rely on these barriers to manage water that enters the door shell.

Q: Is replacement recommended during door restoration?

Absolutely, replacing it ensures new panels and insulation stay dry.

Why You Should Ride With Us?

You can purchase this product directly from Collectors Auto Supply, where we specialize in classic car restoration parts and accessories. Finding the perfect part for your classic car can be difficult, and even frustrating. And let us be honest. What makes it worse is a general lack of customer love in the industry. That is why we are here, and that is why we are different. We are car people just like you, and we know what you need. And if we do not already know it, we're listening. So, contact us if you need help finding a part, or have an idea for how to improve our website, or anything else. Or if you want to do it the old-fashioned way, give us a call at 1 (800) 414-4462.

Part Number:
MUS-WTR-060
Manufacturer Part Number:
MUS-WTR-060
Base Material:
Mylar
Number of Pieces:
2
color:
Unpainted
This product is guaranteed to be free of defects in material and workmanship. Our guarantee is valid only if our product has been properly installed in the vehicle for which it was designed to fit.
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