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Is the plastic cover on your Lithonia Lighting fixture cracked, yellowed, or missing? You may not need to replace the entire light fixture. Instead, a replacement wraparound light cover can restore its appearance while allowing you to keep your existing fixture.

Fluorolite Plastics offers the F-4155 wraparound replacement light cover, designed for the Lithonia Lighting 3255RE fixture, Issue A-21,237, along with other compatible fixtures. With the correct measurements and mounting style, finding a replacement can be much easier than you might expect.

Why Replace the Light Cover Instead of the Entire Fixture?

Over time, plastic light covers can crack, become discolored, or break during cleaning and maintenance. However, the fixture itself may still work perfectly.

Replacing only the cover offers several benefits:

  • Save money: Keep your existing fixture instead of buying a completely new one.

  • Improve appearance: Replace an old, yellowed, or damaged diffuser with a fresh cover.

  • Keep your existing setup: Avoid unnecessary fixture replacement when the original fixture still works.

  • Simplify maintenance: Replace a damaged cover without undertaking a larger lighting project.

Whether you manage a commercial building, maintain a school, or simply want to repair an older kitchen light, the right replacement cover can be a practical solution.

Which Replacement Cover Fits Lithonia Lighting 3255RE?

The Fluorolite Plastics F-4155 wraparound light cover is designed for the Lithonia Lighting Model 3255RE, Issue A-21,237. It may also fit other fixtures that use the same dimensions and mounting configuration.

Here are the key measurements to check before ordering:

  • Length: 47-7/8 inches

  • Overall width: 13-7/16 inches

  • Width between mounting hooks: 12-1/2 inches

  • Height: 1-3/4 inches

The distance between the hooks is especially important. Two wraparound covers may look almost identical, yet their mounting points can differ. Therefore, checking the measurements helps you avoid ordering the wrong replacement.

The F-4155 may also fit compatible fixtures that have been retrofitted with LED lighting. However, always confirm the dimensions and mounting style before purchasing.

Important: If your fixture has hooks that turn downward, the F-4155 is not the correct cover. A different model may be needed.

How to Find the Correct Replacement Light Cover

Finding an older Lithonia Lighting replacement cover can seem difficult, especially when you do not know the original part number. Fortunately, a few simple steps can help you identify the correct style.

Step 1: Check the Fixture Brand and Model

Start by looking for a manufacturer label on the fixture. If you can identify the Lithonia Lighting model number, compare it with the replacement cover’s compatibility information.

For example, the Fluorolite F-4155 is listed for the Lithonia Lighting 3255RE fixture but many covers are not specific to fixture. Just send us the pictures of your cover with showing full width and we will help you find the correct one.

If you cannot find the model number, do not worry. You can still identify a suitable replacement by measuring your existing cover and checking its mounting hooks.

Step 2: Measure the Existing Cover

Use a tape measure to check the length, overall width, and height of your current cover.

Next, measure the distance between the mounting hooks. This measurement is critical because the hooks hold the cover in place.

For the F-4155, the required dimensions are 47-7/8 inches long, 13-7/16 inches wide, and 1-3/4 inches high, with 12-1/2 inches between the hooks.

Whenever possible, measure the original cover rather than relying only on the fixture’s outside dimensions.

Step 3: Compare the Hook Style

Look closely at how the cover attaches to the fixture. Check whether the hooks curve upward, turn downward, or use another mounting arrangement.

Even when the length and width appear correct, a different hook style can prevent the cover from fitting securely.

Therefore, compare both the measurements and the mounting design before placing your order.

Step 4: Compare the Product Details Online

Once you have the measurements, visit the Fluorolite Plastics website and review the product specifications.

You can find the F-4155 wraparound replacement light cover here:

Shop the F-4155 Lithonia Lighting Replacement Cover:
https://www.fluorolite.com/buy-now/f-4155-wrap-around-replacement-light-cover/

The product page provides the dimensions and compatible fixture information, making it easier to compare the replacement with your existing cover.

If you are still unsure, contact Fluorolite Plastics for assistance before ordering.

How Easy Is It to Replace a Wraparound Light Cover?

Once you have the correct replacement, changing the cover is generally a straightforward maintenance task. In many cases, you can keep the existing fixture and replace only the plastic diffuser.

Follow these general steps:

  1. Turn off the power: Switch off the light and the appropriate circuit breaker. Allow the fixture to cool before handling it.

  2. Remove the old cover: Support the cover with both hands and carefully release it from its mounting hooks or clips.

  3. Inspect the fixture: Check the mounting points for damage, loose parts, or other problems.

  4. Position the replacement: Align the new cover with the fixture’s mounting points.

  5. Secure the cover: Carefully engage the hooks or clips according to the fixture’s design. Do not force the cover into place.

  6. Check the installation: Make sure the cover sits evenly and is securely attached before restoring power.

Because fixture designs vary, follow the manufacturer’s instructions for your specific fixture. If the wiring, mounting hardware, or fixture itself needs repair, contact a qualified electrician.

The key to an easy installation is choosing the correct replacement in the first place. When the dimensions and mounting style match, you can avoid unnecessary modifications and frustration.

Where to Buy a Lithonia Lighting Replacement Wraparound Cover

Fluorolite Plastics specializes in replacement plastic light covers for a wide range of commercial and residential lighting applications. Instead of replacing an entire fixture, customers can look for a cover that matches their existing lighting setup.

The F-4155 is one option for customers seeking a replacement for the Lithonia Lighting 3255RE. It is also worth checking the measurements if you have a different fixture, since compatible covers may be used across multiple models.

If you cannot find your exact cover online, Fluorolite Plastics can help you explore other options. Having the original cover available for measurement, along with clear photos of the cover and its mounting hooks, can make identification easier.

Where to buy: Fluorolite makes wraparound covers in-house in Hudson, MA, and they usually ship in 7–10 business days. If your cover isn’t listed, use Trace & Send or request a free quote. We can often mold discontinued covers.

Need help finding the correct cover?

Frequently Asked Questions

Can I replace just the Lithonia Lighting plastic cover?

Yes, if a compatible replacement cover is available and your existing fixture is in suitable condition. Replacing the cover can save you from buying an entirely new fixture.

Does the Fluorolite F-4155 fit every Lithonia Lighting fixture?

No. The F-4155 is designed for the Lithonia Lighting 3255RE, Issue A-21,237, and other fixtures with compatible dimensions and mounting styles. Always verify the measurements before ordering.

What is the most important measurement when buying a replacement?

The distance between the mounting hooks is especially important. For the F-4155, this measurement is 12-1/2 inches. You should also confirm the overall length, width, height, and hook style.

Can I use this cover with LED lighting?

The F-4155 may fit compatible fixtures that have been retrofitted with LED lighting. However, the fixture’s dimensions and mounting configuration must match.

What if I cannot identify my existing light cover?

Start by measuring the cover and taking clear photos of its shape, edges, and mounting hooks. Then contact Fluorolite Plastics for assistance identifying a possible replacement.

Restore Your Light Fixture Without Replacing the Entire Unit

A cracked or yellowed light cover does not automatically mean you need a new fixture. By identifying your Lithonia Lighting model, measuring the existing cover, and checking the mounting hooks, you can find a suitable replacement with less hassle.

The Fluorolite Plastics F-4155 wraparound replacement light cover offers an option for compatible Lithonia Lighting 3255RE fixtures and other matching designs.

Check your measurements and find your replacement here:
https://www.fluorolite.com/buy-now/f-4155-wrap-around-replacement-light-cover/

Fluorolite Plastics helps make replacement light covers easier to find, so you can keep compatible fixtures in service without replacing more than necessary.

Not a Lithonia 3255RE? Browse all wrap around fluorescent light covers by size.