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Introduction to the 5 Best 20-Gallon Parts Washers
When it comes to keeping your equipment in top shape, a reliable parts washer is an essential tool for any shop. A 20-gallon parts washer strikes the perfect balance between capacity and efficiency, making it ideal for medium-sized shops or DIY enthusiasts. These washers are typically free-standing, meaning they can easily be placed on casters for added mobility, so you can move them around your workspace as needed. Plus, the larger tank volume gives you the flexibility to clean bigger parts that may not fit in smaller units.
However, it’s important to note that most of these consumer-friendly 20-gallon parts washers are not compatible with heavier-duty solvents. Instead, they are designed to work best with water-based solvents, which are safer, more environmentally friendly, and effective for routine cleaning tasks. While this may limit their use with certain industrial-strength cleaners, water-based solutions are still highly effective for tackling grease, oil, and other contaminants on your shop tools and parts.
Another thing to keep in mind is that many of these 20-gallon parts washers are essentially the same units, just rebranded by different manufacturers. That said, even though the models may look and function similarly, some may offer small variations in features, design, and pricing that could make one more suitable for your specific needs.
In this guide, we’ve rounded up the top 5 20-gallon parts washers that combine high cleaning performance, durability, and user-friendly features. Whether you’re maintaining a car, cleaning tools, or working on larger machinery, these parts washers are up to the task.
Let’s dive in and find the best parts washer for your shop!
The Best 20-Gallon Parts Washers
1. JEGS 81603 Portable Parts Washer Cart
The JEGS 20-Gallon Parts Washer is a favorite among DIYers for its solid build, smooth pump operation, and trusted brand support. It features a steel tank, a removable parts shelf, and a flexible gooseneck nozzle for directed cleaning. The integrated shelf and drain tray make it easy to clean multiple parts without losing smaller components. Unlike the others, this cart comes with its own casters already installed.
- Tank Size: 20 gallons
- Construction: Powder-coated steel
- Solvent Compatibility: Water-based only
- Extras: Parts basket, flexible spout
- Why it stands out: JEGS branding, good support, and consistent quality for the price.
Best for: Home mechanics looking for a reliable, brand-backed washer.
2. Red Sun 20-Gallon Portable Parts Washer
The Red Sun 20-Gallon Washer is a budget-friendly alternative that doesn’t skimp on function. It comes with a similar steel tank and lid safety switch, plus a smooth-running recirculating pump. While the construction may not be as refined as some pricier options, it handles most automotive cleaning jobs with ease.
- Tank Size: 20 gallons
- Construction: Coated steel
- Solvent Compatibility: Water-based solvents
- Extras: Removable shelf, flow-through brush
- Why it stands out: Excellent value for under $200 with surprisingly good performance.
Best for: Budget-minded mechanics who want the function without the price tag.
3. Shop Fox 20-Gallon Industrial Parts Washer
Known for its quality tools, Shop Fox offers a well-built 20-gallon unit that feels a little more industrial. The design includes a heavy-duty pump, solid lid hinges, and a deeper tank profile that accommodates bulkier items. It’s a step up in sturdiness, which makes it a good choice for users who expect frequent use.
- Tank Size: 20 gallons
- Construction: Heavy-gauge steel
- Solvent Compatibility: Water-based only
- Extras: Metal parts tray, adjustable nozzle
- Why it stands out: More durable than budget units, ideal for regular garage use.
Best for: DIYers who want something closer to commercial-grade performance.
4. Harbor Freight Central Machinery 20-Gallon Parts Washer
Harbor Freight’s Central Machinery 20-gallon washer is one of the most common entry-level models in home garages. It offers decent pump performance, a gooseneck spout, and a removable tray—all at a price point that’s hard to beat. Many users eventually upgrade the pump to accommodate higher flow or tougher solvents, but it’s a solid baseline for occasional use.
- Tank Size: 20 gallons
- Construction: Powder-coated steel
- Solvent Compatibility: Water-based only
- Extras: Shelf and parts basket
- Why it stands out: Widely available, easy to modify or upgrade.
Best for: First-time parts washer owners or occasional home mechanics. Heck, you may never even need to upgrade at all.
Bonus – Eastwood 40 Gallon Parts Washer
For those who need more capacity, the Eastwood 40 Gallon Parts Washer is an excellent choice. Larger than the other models featured, this washer is ideal for cleaning bigger parts or handling more solvent. If space isn’t a concern, its extra room will make your cleaning tasks more efficient, allowing you to clean multiple parts at once.
Eastwood is a trusted brand known for quality, but keep in mind that this model is only rated for use with water-based solvents. While effective for regular cleaning, it may not handle tough grease as well as more caustic solvents. If you need a larger capacity washer for your shop, this 40-gallon unit is the way to go.
How to Choose the Right 20-Gallon Parts Washer for Your Shop
Choosing the right 20-gallon parts washer for your shop can make a big difference in your cleaning efficiency and overall workflow. Here are some key factors to consider when selecting the perfect model for your needs:
1. Cleaning Power and Pump Performance
The cleaning power of a parts washer is largely determined by the strength of its pump. A higher pump rating means better circulation and faster cleaning. While most 20-gallon models are designed for water-based solvents, some users choose to upgrade the pump for higher performance, allowing them to use more caustic, industrial-strength solvents – even kerosene or diesel.
2. Solvent Compatibility
As mentioned earlier, many 20-gallon parts washers are designed specifically for water-based solvents, which are effective for everyday cleaning tasks and safer for the environment. If you need to clean parts that are heavily coated in grease, oil, or other tough residues, check whether the washer can support more caustic solvents or if it needs an upgraded pump to handle those types of fluids. If you need a washer for heavy-duty tasks or plan to upgrade the pump later, look for models that allow for easy pump replacement or customization or more expensive ones that are compatible with these types of solvents off the shelf. Many users choose to run a cleaner like Purple Power or Super Clean, which are both water-based and effective at removing grease and grime.
3. Size and Mobility
20-gallon parts washers are often free-standing and can be placed on casters, making them easy to move around your workspace. Consider how much space you have in your shop and how frequently you’ll need to relocate the unit. The added mobility of casters is especially useful in smaller shops where flexibility is key, so consider adding these to your parts washer – or making a new base on wheels out of plywood or metal.
4. Tank Material and Durability
Durability is an important factor to consider when choosing a parts washer, as it will be exposed to harsh solvents and frequent use. Many 20-gallon models are made from steel or heavy-duty plastic, both of which are resistant to rust and corrosion. If you’re working with caustic solvents or if the washer will undergo heavy use, choose a model with a corrosion-resistant tank material, like stainless steel, for extra longevity. In practice, most of these models should be on par when it comes to durability.
5. Filtration System
A good filtration system ensures that the solvent is cleaned and reused effectively, which can help save on costs and maintain the washing performance over time. Many parts washers include built-in filtration systems that remove dirt and debris from the solvent, improving cleaning efficiency. If your shop handles large quantities of grime or uses solvents for extended periods, a high-quality filtration system will make maintenance easier. Many users choose to add one, or more, in-line filters to their parts washers. Unforunately, manufacturer support for this is often limited, meaning that if you’d like to add extra filtration, you will likely need to come up with a plan on your own.
6. Price and Warranty
Finally, budget is always a key factor when making any purchase. While 20-gallon parts washers are generally affordable, the price can vary depending on the features and brand. Take into account any additional features, such as pump power or filtration systems, as these will influence the price. Additionally, check the warranty offered by the manufacturer—longer warranties typically indicate better quality and reliability, although on these consumer-level machines quality can vary wildly. Shipping costs can also be a factor, and we believe that the items listed above present the best value for the price for the DIY mechanic.
5 Best 20-Gallon Parts Washers Conclusion
Choosing the right 20-gallon parts washer for your shop is a crucial investment in maintaining a clean and efficient workspace. Whether you’re cleaning automotive parts, tools, or machinery, the models we’ve reviewed offer a balance of performance, durability, and convenience. Their larger tank sizes and free-standing designs make them ideal for handling bigger parts, and the option to add casters provides flexibility in placement.
Most of these washers are designed for use with water-based solvents, which are effective for routine cleaning tasks and safer for both you and the environment. However, many shop owners choose to upgrade the pumps in these units to handle more caustic, industrial-strength solvents for tougher cleaning jobs. While many of these models are rebranded versions of the same unit, comparing features, price, and customer reviews will help you find the best fit for your needs.
No matter your shop size or the type of work you do, there’s a 20-gallon parts washer that can enhance your cleaning process, reduce maintenance time, and keep your workspace running smoothly. Ready to find the perfect one? Check out our recommended models and make the right choice for your shop today!
