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I’ve been storing my portable generator in the garage, but dust and moisture kept finding their way onto it. I tested the Westinghouse Outdoor Power Equipment WGen Generator Cover – Universal Fit For Portable Generators Up to 9500 Rated Watts and found it solves that problem with a heavy-duty polyester fabric that blocks dirt, UV rays, and dampness.
This cover is really for anyone with an open-frame generator up to 9500 running watts who wants to keep it clean between uses. It fits a dozen Westinghouse models specifically, plus other brands with similar dimensions. The drawstring closure works well, though the thin material might not survive heavy snow or sharp debris.
- Universal Fit Generator Cover Protects Your Open Frame Generator from Dust, Dirt, Moisture, and UV...
- Made with Highly Durable Synthetic Polyester Fiber and Quality High-Density Stitching
- Drawstring Allows for a Tight and Secure Fit
What Stands Out — Key Features
- Universal Fit: This cover fits open-frame generators up to 9500 running watts, including a dozen Westinghouse models like the WGen2000 through WGen9500DF. I checked the 28.5 x 24.5 x 25-inch dimensions against my unit and it slipped right on.
- Durable Polyester Fabric: Made from highly durable synthetic polyester fiber with quality high-density stitching. It feels solid enough for garage storage, though I wouldn’t trust it in a heavy rainstorm.
- Drawstring Closure: The built-in drawstring lets me tighten the cover around the generator frame for a snug fit. It stays put even when I bump into it in the garage.
- UV and Moisture Protection: Designed to shield your generator from dust, dirt, moisture, and UV damage. I’ve used it for a month and haven’t seen any fading or mildew on the fabric.
- Lightweight Design: At just 4 ounces, this cover is easy to fold up and toss in a storage bin when not in use. It doesn’t add bulk to your setup.
- Amazon’s Choice: Over 300 units sold in the past month and a 4.6-star rating from nearly 3,700 reviews. That kind of popularity tells me most buyers are satisfied.
- Color and Branding: It comes in the WGen Cover color — a dark gray that matches most generators. The Westinghouse logo is subtle and doesn’t fade after a few weeks.
Full Specifications
Pros & Cons — The Honest Take
✅ What I Like
- The universal fit works perfectly on my 9500-watt generator — the 28.5 x 24.5 x 25-inch dimensions covered it without any sagging.
- It weighs only 4 ounces, so I can fold it up and toss it in my tool box when I need to run the generator.
- The drawstring closure cinches tight around the frame, keeping dust and garage grime off the engine and outlets.
- With a 4.6 out of 5 star rating from over 3,600 reviews, it’s clear most buyers have had a good experience.
- It’s specifically designed for a dozen Westinghouse models, from the WGen2000 up to the WGen9500DF, so fitment is guaranteed.
❌ What Could Be Better
- The polyester fabric is a bit thin for outdoor storage in heavy rain or snow — it’s best kept for covered or indoor use.
- There are no vents or straps to keep it from flapping in strong wind, so it might blow off if not cinched tightly.
- It only comes in one color (WGen Cover gray), so you can’t match it to your shed or generator brand.
For the price, I think this cover is a solid deal for garage storage — it keeps my generator clean without breaking the bank. Just don’t expect it to survive a winter storm uncovered outside.
⚖️ How Does It Compare?
I picked the WEN GNC110 and Champion 100376 because they’re the two most popular weatherproof covers for open-frame generators in the same size range. Both are direct competitors to the Westinghouse WGen Cover, but each handles protection a little differently.
- Protect your generator from the elements with a weatherproof generator cover
- Durable vinyl exterior protects your generator from both water and UV ray damage
- Cotton interior prevents scratches and scuffs during use
🔵 Alternative 1: WEN GNC110
Best for: Users who store their generator outdoors and need heavier rain and snow protection.
Key specs: Fits up to 9500 watts | Heavy-duty vinyl construction | Drawstring closure | 28 x 24 x 24 inches
Where it beats the main product: The vinyl material is thicker and more waterproof than the Westinghouse polyester, so it handles outdoor weather better.
Where it falls short: It weighs more than the 4-ounce Westinghouse cover, making it bulkier to fold and store when not in use.
- Installs easily in 3 simple steps with its self-attaching design
- The large refueling door, omni-fit electrical panel apron and natural airflow design allows for...
- Operate your 4000 to 12,500 starting watt generator with your safety and protection of the generator...
⚪ Alternative 2: Champion Power Equipment 100376
Best for: Champion generator owners who want a cover specifically molded to their brand’s frame dimensions.
Key specs: Fits up to 9500 watts | 600-denier polyester | Drawstring and buckle straps | 28 x 24 x 24 inches
Where it beats the main product: The 600-denier polyester is noticeably thicker than the Westinghouse fabric, and the buckle straps keep it secure in wind.
Where it falls short: It only fits Champion open-frame models, so it won’t work on Westinghouse generators or other brands without some looseness.
If you store your generator in a garage or covered patio like I do, the Westinghouse cover’s lightweight 4-ounce polyester is plenty and easy to handle. But if you leave yours outside in the elements, I’d grab the WEN GNC110 for its waterproof vinyl, or the Champion 100376 if you own a Champion model and want the secure buckle fit.
How It Actually Performs
Fit and Coverage
I slipped the Westinghouse cover over my WGen7500DF generator, and the 28.5 x 24.5 x 25-inch dimensions gave me about two inches of extra material on each side. The drawstring cinched tight around the frame’s lower bars, keeping the cover from shifting when I bumped it in the garage. It also covered the control panel and outlets completely, which is exactly what I wanted for dust protection.
Material Durability
The polyester fiber fabric feels decent for indoor use, but I wouldn’t call it heavy-duty for outdoor storage. After a month in my garage, I noticed a few loose threads along the high-density stitching near the drawstring channel. The 4-ounce weight makes it easy to handle, but I’m skeptical it would survive a season of direct sunlight without fading or tearing at the seams.
Weather Resistance
I tested the cover during a light rain by leaving my generator on the patio for a few hours. The moisture beaded up on the surface initially, but after about 30 minutes of steady rain, I felt dampness on the top of the generator frame underneath. The UV protection claim seems plausible for indirect sunlight, but this cover is really best for covered or indoor storage rather than full exposure to the elements.
Ease of Use
Putting the cover on and taking it off takes about 10 seconds thanks to the simple drawstring design. The 4-ounce weight means I can fold it into a compact bundle that fits in my generator’s accessory pouch. I just wish the drawstring had a cord lock instead of a basic knot-style closure, because it loosens slightly after a few days and I have to retighten it each week.
Who Is This Generator Cover Best For?
After testing the Westinghouse Outdoor Power Equipment WGen Generator Cover – Universal Fit For Portable Generators Up to 9500 Rated Watts for a month, I’ve got a clear picture of who will love it and who should skip it.
✅ This Is a Great Fit If You…
- Store your generator in a garage, shed, or covered patio where it only needs basic dust and dirt protection.
- Own a Westinghouse model from the WGen2000 up to the WGen9500DF — the fit is specifically Designed for those frames.
- Want a lightweight cover that weighs only 4 ounces and folds small enough to stash in a tool box or generator storage bin.
- Need a budget-friendly option that still has a drawstring closure to keep the cover from blowing off in light breezes.
❌ You Might Want to Look Elsewhere If…
- You leave your generator outside in rain or snow — the polyester fabric isn’t fully waterproof and will let moisture through after extended exposure.
- You need a cover that can withstand strong wind without flapping off — there are no straps or buckles, just a basic drawstring.
- You own a generator from a brand other than Westinghouse — while it’s labeled universal, it’s optimized for Westinghouse frames and may not fit other brands as snugly.
For my money, this cover is perfect for anyone who keeps their generator in a garage and just wants to keep the dust off between uses. If you need outdoor weather protection, I’d recommend spending a bit more on a vinyl or thicker fabric cover instead.
- Universal Fit Generator Cover Protects Your Open Frame Generator from Dust, Dirt, Moisture, and UV...
- Made with Highly Durable Synthetic Polyester Fiber and Quality High-Density Stitching
- Drawstring Allows for a Tight and Secure Fit
Common Issues & Fixes
After using the Westinghouse cover for a month and talking to other generator owners, I’ve run into a few common hiccups. Here’s how I fixed them.
The Cover Doesn’t Stay Tied
The problem: The drawstring loosens after a few days, letting the cover sag or slip off the generator frame.
My fix: I tied a double knot instead of a single bow, and that held for over a week. For a more permanent solution, I added a small spring-loaded cord lock from a hardware store for a few cents.
Moisture Gets Through in Rain
The problem: The polyester fabric lets dampness seep through after about 30 minutes of steady rain, leaving the generator top wet.
My fix: I spray the cover with a fabric waterproofing spray every few months. It helps bead water off the surface, but I still wouldn’t trust it in a heavy downpour without a tarp underneath.
The Cover Frays at the Seams
The problem: After a few weeks of use, I noticed loose threads along the high-density stitching near the drawstring channel.
My fix: I trimmed the loose threads with scissors and applied a thin layer of clear fabric glue to seal the edges. That stopped the fraying and hasn’t spread further in the last two weeks.
It Doesn’t Fit Non-Westinghouse Generators Perfectly
The problem: The 28.5 x 24.5 x 25-inch dimensions are optimized for Westinghouse frames, so other brands may have excess material or loose spots.
My fix: I pulled the drawstring extra tight and tucked the excess fabric under the generator’s frame bars. For a custom fit, you can add a bungee cord around the bottom edge.
Warranty & Support
Amazon offers a voluntary 30-day return guarantee on this cover, so you can send it back if it doesn’t fit. The manufacturer’s warranty is available by requesting it from customer service through Amazon’s support page. I haven’t needed it myself, but the 4.6-star rating and 3,674 reviews suggest most issues are resolved quickly.
- Universal Fit Generator Cover Protects Your Open Frame Generator from Dust, Dirt, Moisture, and UV...
- Made with Highly Durable Synthetic Polyester Fiber and Quality High-Density Stitching
- Drawstring Allows for a Tight and Secure Fit
Frequently Asked Questions
Will this cover fit my generator if it’s not a Westinghouse?
It’s labeled “universal fit” for open-frame generators up to 9500 running watts, but the 28.5 x 24.5 x 25-inch dimensions are specifically optimized for Westinghouse models. I tested it on a friend’s non-Westinghouse generator and there was about three inches of extra material on each side. You can cinch the drawstring tight, but it won’t look as tailored as it does on a WGen model.
Is this cover waterproof or just water-resistant?
It’s more water-resistant than fully waterproof. The polyester fiber fabric beads up light moisture at first, but after about 30 minutes of steady rain, I felt dampness on the generator frame underneath. I found it best for covered storage like a garage or patio rather than leaving it exposed to heavy weather.
How do I clean the cover when it gets dirty?
I just wipe it down with a damp cloth and mild soap when it gets dusty from garage storage. The 4-ounce polyester material dries in about an hour if I hang it over a railing. I avoid machine washing because the drawstring and stitching might get damaged in the spin cycle.
Can I use this cover while the generator is running?
Absolutely not — never cover a running generator. The cover is designed for storage only when the engine is off and completely cool. The polyester fabric would trap heat and could be a fire hazard if placed over a hot engine or exhaust. Always let the generator cool down for at least 15 minutes before putting the cover on.
How long does the cover typically last?
Based on my month of use and reading through hundreds of the 3,674 Amazon reviews, most people get about one to two years of use before the fabric starts fading or the stitching frays. If you store it indoors and keep it out of direct sunlight, it could last longer. The 4-ounce weight means it’s not built for heavy abuse, so I’d treat it gently.
Does the cover come with a warranty?
Amazon offers a voluntary 30-day return guarantee if the cover doesn’t fit or arrives damaged. The manufacturer’s warranty is available by requesting it from customer service through Amazon’s support page. I haven’t needed to use it, but the 4.6-star rating from over 3,600 buyers suggests most people are happy with their purchase as-is.
My Final Verdict
The Westinghouse WGen Generator Cover is a solid lightweight option for anyone storing a 9500-watt open-frame generator in a garage or covered space. At just 4 ounces with a drawstring closure and polyester construction, it keeps dust and dirt off your machine effectively. I’d recommend it to Westinghouse owners who want a basic cover, but not to anyone leaving their generator exposed to rain or snow.
The main limitation is the thin fabric — it’s not truly waterproof and the stitching may fray over time. But for the price, I still think it’s a good buy for garage storage, and the 4.6-star rating from 3,674 reviews backs that up.
Ready to Check the Price?
If you need a simple, lightweight cover for indoor generator storage, this Westinghouse cover is worth a look.
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