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D & W Sales Eng. 3940WH 4-Inch Round Heat Vent Without Damper - White

Manufacturer

D & W Sales Eng.

<h3>D & W Sales Eng. Automotive Parts and Accessories</h3><p>D & W Sales Eng. brings precision engineering and quality craftsmanship to the automotive aftermarket. As a specialized manufacturer, the company focuses on delivering essential vehicle components that combine functional performance with reliable construction. Whether you're restoring a classic vehicle, upgrading your daily driver, or repairing collision damage, D & W Sales Eng. provides the parts needed to complete the job right.</p><h3>Grilles and Front-End Components</h3><p>The front end of any vehicle serves as both a protective barrier and a defining aesthetic element. D & W Sales Eng. specializes in <a href="/7307-d-w-sales-eng-grille-1384">grilles</a> that meet the demanding requirements of automotive applications. These components must allow proper airflow to cooling systems while withstanding road debris, weather exposure, and the rigors of daily driving. From replacement grilles that restore original appearance to upgraded designs that enhance vehicle styling, proper fitment and durable construction are essential considerations when selecting front-end components.</p><h3>Engineering for Automotive Applications</h3><p>Manufacturing automotive parts requires attention to detail and understanding of vehicle-specific requirements. Grille assemblies must account for mounting points, dimensional accuracy, and material selection to ensure long-term durability. Whether fabricated from plastic, metal, or composite materials, each component must meet specifications for strength, finish quality, and resistance to UV degradation and environmental factors. For vehicle owners and repair professionals alike, selecting parts from manufacturers who understand these engineering challenges helps ensure successful installations and lasting results.</p><h3>Applications and Installation Considerations</h3><p>When replacing or upgrading vehicle grilles, several factors come into play. Proper part identification ensures compatibility with specific year, make, and model applications. Original equipment specifications provide the baseline for fitment and function, while aftermarket alternatives may offer improved aesthetics or enhanced durability. Installation typically involves removing damaged or worn components and securing new parts using factory mounting locations. Taking time to verify part numbers and fitment details before purchase helps avoid compatibility issues and ensures the component will integrate properly with surrounding bodywork, lighting assemblies, and other front-end parts.</p>

Part Number

3940WH
06/02/2036 6:39 PM
Sale Price

$3.79

In Stock (10+)

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Usually delivered within 2 days

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The D & W Sales Eng. 3940WH is a 4-inch round heat vent register designed for RV and marine heating systems. This flush-mount vent provides efficient airflow distribution from forced air heating systems while maintaining a clean, low-profile appearance.

Key Features:

  • 4-inch diameter round opening fits standard ducting
  • Non-dampered design for unrestricted airflow
  • White finish blends seamlessly with interior walls and ceilings
  • Durable plastic construction withstands RV and marine environments
  • Easy snap-in installation for quick replacement or new installations

This vent cover is ideal for replacing worn or damaged registers in RVs, campers, travel trailers, and boats. The simple design ensures reliable performance and easy maintenance in recreational vehicle heating systems.

Relatively easy process

good! but if can shipping quickly will be better.

Great price and super fast shipping.

good ,quick

great site

Shipping took about a week total from start to finish. A little slow as far as I'm concerned but the awesome price definatley made it worth it. Will order from them again 4.9/5

Had the lowest price around for a Thule 9025 bike rack. Shipping was also fast and inexpensive. I will be sure to use them again for future purchases. Order #9806 4/15/12

Absolutely perfect ordering experience! Ordered a part that is out of stock with most large retailers and at a price well below theirs. Ordered on a Friday, received Wednesday. I'll make Autoplicity my first stop in online shopping from here on out.

Very good first experience with Autoplicity. Order arrived promptly. No issues.

Good so far...

The magnaflow kit that I ordered was about $100 cheaper than any other site I could find. Shipping was fast, and relatively cheap too.

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