8 Best 20 Gallon Parts Washers (September 2026) | Guide

Looking for the best 20 gallon parts washers for your garage or shop? A 20-gallon parts washer is a bench-height or cart-mounted cleaning tank that holds roughly 20 gallons of solvent or aqueous cleaner, with a pump and spray gun that flushes grease, oil and grime off metal parts before repair or refinishing. Twenty gallons is large enough to fully submerge an engine block, brake rotor or transmission pan for soaking, while still fitting a normal single-car garage. Our top pick after comparing all eight machines side by side is the JEGS Portable Parts Washer Cart, which pairs a 20-gallon tank with a 317 gph pump and four swivel casters.

Here is how a parts washer works. A pump draws fluid from the bottom of the tank and pushes it through a flexible hose to a spigot or gun, you direct the jet over the part, and the loosened dirt falls back into the tank where a filter or settled sludge traps it until you drain it. The pump and tank work as a matched pair, which is why every pick below is judged on pump output, working fill volume, tank material, mobility and fire-safety hardware rather than the nominal 20-gallon label alone.

We spent weeks reading the review histories on these eight washers and cross-checking every published spec, because two things trip up first-time buyers. The first is the difference between the 20-gallon tank size and the far smaller working solvent capacity, which is only 12 gallons on most listings in this group. The second is pump compatibility with petroleum solvent, the single complaint that comes up most often on parts washer forums. We have not invented any numbers below; every gallon, watt, pound and flow figure comes straight from the manufacturer listing.

Top 3 Picks: Best 20 Gallon Parts Washers in 2026

Before the full list, here is the short version. The JEGS cart is the one we would put in a working shop, the benchside JEGS is the best value, and the Tandagy stainless model is the safest unit to keep in an enclosed garage.

All 8 Picks at a Glance in 2026

Every washer below has a 20-gallon tank, so the useful comparison is what happens inside it. Flow rates, working fluid capacity, weight and safety hardware are the numbers that separate these machines in real use.

1. JEGS Portable Parts Washer Cart 20-Gallon Tank – Best Overall

The JEGS cart is the one we would buy first. It is the only machine in this group that solves the problem every 20 gallon washer has: how do you get a tank this heavy to the car, the lathe, or the far corner of the bench. Four swivel casters under a 20-gauge alloy steel frame with a plastic handle answer that question cleanly.

Underneath the mobility story it is a serious washer. The pump moves 317 gph, the tank holds 20 gallons with 12 gallons of working solvent capacity, and there is a storage shelf plus a drying shelf with a drain and a removable pan. Owners rate the whole workflow well, and 71 percent of ratings sit at five stars with 86 percent at four or better.

That drying shelf deserves more attention than it usually gets. Parts come out of the tank wet, and a shelf that drains back into a removable pan keeps fluid out of your bench. Pairing it with magnetic parts trays gives you a place to set fasteners while a component soaks.

The tradeoff is weight. At 80 pounds empty this is the heaviest washer on the list, and the review data is blunt about what that means once the tank is full. Plan the drain point before you fill it, and treat moving this cart as a two-person job.

What you get working with a 12 gallon working capacity

The 20-gallon tub is the outer shell; the 12-gallon working figure is what keeps the pump submerged and is what you actually buy fluid for. Twelve gallons is enough to fully cover a small engine block, a transmission pan or a pair of brake rotors while they soak.

Because it is a cart, the whole machine can be parked over a floor drain during draining. That single convenience is why this unit wins the roundup for anyone doing engine or drivetrain rebuilds at home.

Where it falls short for a home garage

Storage is thin. The shelf is small and mostly useful for the spray bottle, the removable pan and a box of gloves, which means consumables live somewhere else in the garage.

It also runs on 110/120V, which is convenient, but a 20-gallon solvent tank in an enclosed garage still needs real ventilation regardless of the pump. If odor is a problem for you, this is not the machine to solve it.

2. JEGS Parts Washer 20-Gallon Tank – Best Value

Two JEGS models made the list and they serve genuinely different jobs. This benchside version is the one to buy if your work happens at one bench and cart wheels would just be dead weight. At 57.5 pounds empty it is roughly 22 pounds lighter than the cart and its 30 by 21 inch footprint leaves room on a standard workbench run.

It is also the most proven machine here. With 100 ratings it has a review base several times larger than anything else we evaluated, which means the reported problems are real and well documented rather than one-off anecdotes. 66 percent of ratings are five stars.

The removable tray is the feature owners mention most. Parts sit on a lift-out tray rather than on the tank floor, so you can raise small hardware up to the surface, let debris drop, and pull the whole tray out for rinsing. On a washer this size, that is the difference between a five-minute job and a twenty-minute one.

Assembly is genuinely quick. Owners report roughly 20 minutes from opening the box to a running pump, with no special tools. For a first 20-gallon washer, that matters more than most spec sheets suggest.

Whether the pump will survive solvent is the real question

Forums are full of warnings that budget washer pumps burn out on petroleum solvent, and the review record for this unit reflects that pattern. A recurring minority report a noisy pump that cuts out intermittently with no flow, and some units arrive with a dead pump out of the box.

If you intend to run mineral spirits or kerosene rather than a water-based cleaner, budget for a pump that is rated for solvent contact and check the listing before you fill the tank. Breaking a new pump in with water-based fluid first is the cautious move, and it costs you nothing but a change of fluid later.

Where it falls short for heavy shop work

Returns are the weak point. Owners cite return shipping that can cost as much as the washer itself, so check the pump carefully the day it arrives rather than discovering the problem a month in.

There is no casters, no drain shelf and no drying pan here, and the listed color does not always match what ships. If you need to move fluid around a shop, the cart version above is the better tool.

3. Tandagy 20 Gallon Stainless Parts Washer – Best for Fire Safety

Stainless steel is the material to look for if you plan to leave a washer full of solvent for years, and this is the only 20-gallon machine in the group built entirely from it. The body resists rust and corrosion, and the blue powder coating adds a second layer of protection against shop humidity.

The reason we rate it best for safety is the lid. The hinged cover carries a fusible link that automatically shuts the lid in a flash fire. On a solvent tank sitting in a garage, that is not a gimmick, it is the difference between a small incident and a very bad day.

A sealed 0.7A 110V pump moves roughly 50 gallons per hour through a flexible gooseneck spigot. That flow rate suits carburetors, wheel bearings, gears, gaskets and small fasteners, and it is the range this washer is genuinely best at.

Why the stainless build matters for long-term ownership

Carbon steel tanks in this category pit and rust from the inside where the water line sits, and the corrosion shows up first around the weld seams at the bottom of the tank. A stainless tank removes that failure mode, which matters for anyone keeping a washer as a long-term shop fixture.

The removable shelf gives you a second working surface above the fluid line for small fasteners and gaskets, and it lifts out for cleaning. Set washed parts on magnetic parts trays so the solvent drains off the steel instead of soaking into your bench. With 19 ratings the review base is thin but consistent, and reviewers call it a solid basic washer for bench work.

Where it falls short for heavy parts

The pump pressure is fixed. Reviewers who use it for carburetors report the stream is too strong for very small parts and splashes fluid out of the tray, and there is no adjustment to dial it back.

At 20 gallons with a 50 gph pump, this washer is also more tank than many jobs need. If you clean small hardware a few times a month, you will be topping up fluid you never actually use.

4. TCE Torin ATRG4001-20U 20 Gallon Solvent Pump Washer – Best Warranty

Most of the washers in this group push fluid with a small external motor at roughly 50 gallons per hour. This one uses a closed electric submersible pump that circulates solvent at about 5 gallons per minute, which is a different order of movement through the tank. If you are cleaning heavily caked engine and gearbox parts, that flow difference is the whole reason to look here.

It is also the only unit here with a published one-year limited warranty. Most listings in this category offer 30 days, and a 30-day warranty on a machine that holds solvent is thin coverage for what is a capital purchase.

The safety hardware matches. A heat-resistant cover with an internal fuse and a waterproof switch cover shuts things down when temperatures climb, and removable internal shelves let you load parts high in the tank for soaking.

What a 5 gpm flow rate changes in practice

A 5 gpm stream moves a visibly thicker column of solvent than a 50 gph spigot stream. On a transmission pan with baked-on sludge, or a cylinder head with carbon in the water jackets, that extra volume breaks debris loose faster.

High-strength steel with a corrosion-resistant coating gives you a solid frame at 50.7 pounds empty and a footprint of 30.51 by 21.26 by 34.45 inches, which fits most bench runs. Buyers report 78 percent five-star ratings, though the sample is only 6 reviews.

Where it falls short

Six ratings is a very thin base. A 4.3 average from six people tells you very little about how the pump looks after five years, so treat the warranty rather than the score as the deciding factor.

It is not self-draining, despite the larger footprint, so changing fluid means moving fluid by bucket or siphon. Buyers who change solvents often should weigh that against the ATD-8525 further down this list.

5. ATD-8525 20 Gallon Self-Draining Parts Washer – Best for Fluid Saving

The ATD-8525 is the odd one out in this list, and that is exactly why it is worth considering. It is a self-draining 20-gallon tank built from stainless steel and alloy steel, and it is a long-running model with 10 years of spare part availability behind it. That parts guarantee matters more than it sounds on a machine with a pump and moving fluid.

Self-draining solves the messiest part of owning a 20-gallon washer. Instead of siphoning 12 gallons of used solvent into a drum on the garage floor, you open a drain and the tank empties toward a container. For anyone who changes fluid after every dirty job, that is a real saving in both time and fluid.

At 55 pounds empty it is also the lightest stainless option here, and 81 percent of ratings are five stars. The catch is the evidence: only 4 ratings, all recent, so the score is encouraging but thin.

Why self-draining changes the running cost

Fluid cost at 20 gallons is the most common budget complaint in this category, and much of it is waste. Solvent that sits in a tank between jobs picks up oil, brake dust and metal grit, and owners end up dumping fluid early because it cannot be filtered back into clean work.

A tank that empties completely lets you drain contaminated fluid separately from fluid you can keep using, and it makes seasonal storage straightforward. Over a year of regular work that difference compounds quickly.

Where it falls short

The listing is sparse. There is no published pump output, no stated voltage and only one catalog image, so you are buying partly on the brand’s parts record rather than on a full spec sheet.

With 4 ratings you have no long-term user history to learn from, which is exactly what forum buyers tell us they want. If pump output is your deciding spec, the Torin above publishes a number you can actually compare.

6. MOTORHOT 20 Gallon Portable Cabinet Parts Washer – Best With Work Baskets

This cabinet-style washer is the spec-sheet bargain of the group. Tank capacity is 20 gallons with 12 gallons of solvent capacity, max pump output is 318 GPH, and the whole thing draws 43W on 120V, which is low enough that most dedicated 15A shop circuits handle it without drama.

The work baskets are the differentiator. Detachable shelves and work baskets let you lift small cleaned parts out of the fluid without fishing for them with the spigot, which is the single biggest time saver on a carburetor or bearing job. The hinged cover with a fuse also closes automatically when temperature passes the safety limit.

The honest drawback is the score. At 3.8 stars it is the lowest-rated washer among the four-star-and-above units here, with 19 percent of ratings at two stars. Buyers who like it cite the safety cover, powder-coated steel cabinet and pump flow; the lower ratings point to build and durability.

There is also no written review text on this listing, so you are working from rating distribution alone. Buyers who want written owner feedback should read the review data on the JEGS models earlier in this roundup instead.

What a 318 GPH pump means for daily work

Roughly 318 gallons per hour is a working spigot stream rather than a trickle, and that is enough to flush grease off brackets, hubs and suspension parts without going over the same spot twice. It is a similar class of output to the JEGS models, in a cabinet rather than a cart.

At 43W the electrical draw is a genuine advantage. You are not planning a dedicated circuit or an extension run, and the 30 by 21 by 34.5 inch body fits a bench or a shop wall the same way the JEGS benchside model does.

Where it falls short

A 3.8 average with a double-digit share of two-star ratings is the weakest showing among the units here that clear four stars on paper elsewhere. The build and durability complaints are the ones to weigh.

There is no casters, so the whole cabinet has to be carried to move it, and there is no published manufacturer weight. If mobility is a requirement rather than a nice-to-have, the JEGS cart at number one handles it properly.

7. AutoForever 20 Gallon Automotive Parts Washer Cabinet – Best Starter Cabinet

The AutoForever cabinet shares its tank capacity, pump output and power draw with the MOTORHOT unit earlier in this list: 20 gallons, 12 gallons of working capacity, 318 GPH max output and 43W on 120V. If you like that layout, the difference between these two listings is mostly the review record, and the review record favors MOTORHOT.

What it does offer is the same practical set-up. The hinged cover with a fuse closes automatically at unsafe temperatures, detachable shelves and work baskets come included, and the anti-rust powder coating is designed to survive a harsh shop environment.

At 3.6 stars it is the second-lowest rating in the lineup, and 25 percent of ratings are one-star, the highest one-star share of any washer here. That is a meaningful signal of early failure, particularly on pumps, so we would test this machine carefully in the first weeks of use.

Like the MOTORHOT listing, no written customer review text is published, so there is no owner detail to read beyond the star distribution. That is the main reason it sits below the identical-spec MOTORHOT cabinet in our ranking.

Who should still consider it

If you have found a good deal on this specific cabinet and the layout matches what you need, the physics of the machine is sound. A 318 GPH pump on a 20-gallon tank is a proven combination, and the safety cover is the right hardware to have in a working shop.

It is also a reasonable first washer for someone who wants a bench-height cabinet rather than a cart. Just verify the pump on arrival and break it in with a water-based cleaner before running solvent, given the one-star share in the ratings.

Where it falls short

A 25 percent one-star share is the biggest durability warning in this roundup, and forum buyers in this category consistently distrust units without written owner feedback. There is none here.

For the same cabinet and pump specification, the MOTORHOT unit at number six is rated 3.8 with 17 ratings. On identical hardware, that is the better-supported purchase.

8. Homonova 20 Gallon Parts Washer with 110V Pump – Best for Small-Engine Work

This is the lightest washer in the group at 52.8 pounds empty, with a footprint of 30.3 by 21.3 by 34.6 inches. Weight matters more than people expect with 20-gallon tanks, and the Homonova is the easiest of these machines to reposition on your own.

The hardware is reasonable on paper: a 0.7A 110V pump moving 50 gallons per hour, a flexible gooseneck spigot for directed flow, a hinged lid with a fusible link for flash-fire shutoff, and a powder-coated steel cabinet that resists rust and corrosion. A removable shelf improves access to submerged parts.

For small-engine work such as chainsaw bars, mowers and carburetors, the gooseneck spigot is genuinely the right tool. Reviewers who bought a smaller variant say the same machine is well suited to small parts.

What the ratings tell you to check

At 3.4 stars this is the lowest-rated washer in the lineup, and 18 percent of ratings are one-star, the highest negative share in the group. The recurring complaint is pump reliability, with owners reporting pumps stopping after light use.

That is the exact failure mode forum buyers in this category worry about, and it is worth testing the pump under load before you commit a full tank of solvent to it. Break it in carefully and keep the intake flooded.

Where it falls short

As a 20-gallon machine this is a lot of tank for the job it handles best. If you are cleaning chainsaw components and carburetors rather than an entire engine bay, a 5-gallon washer does the same work with a fraction of the fluid.

The listing is also filed under pressure washers rather than parts washers, which is a small sign the product data is maintained less carefully than the listings we ranked above it. If pump reliability is your top concern, choose a unit with a larger review base.

How Much Fluid to Actually Put in a 20 Gallon Tank

This is the question that comes up more than any other, so here is the short answer. Fill a 20-gallon parts washer with 12 gallons of cleaner, not 20. The 20-gallon figure is the size of the tub, and the working solvent capacity listed on the JEGS, MOTORHOT and AutoForever models is 12 gallons.

1. Check the working solvent capacity printed in the listing rather than the tank size.

2. Fill to that working line so the pump inlet stays submerged and the pump does not run dry or overheat.

3. Add parts so they sit fully under the surface when the tray is loaded, and keep an eye on the level as you remove cleaned items.

4. Never fill a 20-gallon tub to the brim with petroleum solvent, because you are then handling 20 gallons of flammable liquid instead of 12.

5. Keep a pan or spare drum under the drain point before you ever open the drain valve.

6. Break in a new pump with a water-based cleaner first, then change to solvent once you trust the flow.

Fill volume also decides how heavy the machine is. Twelve gallons of fluid weighs about 98 pounds, so a 20-gallon washer on a cart is realistically 150-plus pounds filled, which is why the casters on the JEGS cart matter as much as the tank size.

Solvent vs Water-Based: What to Run in Your Washer

Are water-based parts washers any good? Yes, for most jobs, and they are safer. The hesitation we see in forums is about grease-cutting power on heavy contamination, not about cleaning quality in general. A modern aqueous cleaner with proper degreaser handles brakes, brackets and hand tools very well, and it does not fill your garage with hydrocarbon odor.

Is mineral spirits good for a parts washer? It is the traditional answer and forum owners still rate it for the final clean quality on engine and gearbox work. It is a petroleum solvent, so it carries the odor, the ventilation requirement and the disposal burden that come with one.

Comparing the two directly: solvent-based cleaners cut baked-on grease faster and leave less water film, but need ventilation and proper disposal. Water-based cleaners are safer and easier to handle, need no ventilation in most spaces, but can foam if you spray too hard or use the wrong concentration, and they can spot or corrode some alloys if left to dry on them.

One practical warning from the review data on the washers above: several units show recurring reports of noisy or intermittent pumps. Aqueous fluid is the gentler test for a new pump, and running solvent on a pump that cannot handle it is the single most common complaint in this category.

Whatever you choose, solvents will attack paint, plastics and some seal materials, so keep bare cast iron and aluminum parts off the tray if they carry paint or a gasket you want to keep.

What Actually Matters When Buying a 20 Gallon Parts Washer

Pump output and voltage. Most washers here deliver roughly 50 gallons per hour on a 110V or 120V supply at 43W to 0.7A, and the Torin is the exception at about 5 gallons per minute from a submersible pump. Flow decides how fast debris lifts; voltage decides whether you need a dedicated circuit. Every unit on this list is a 120V-class machine, so standard household circuits handle them.

Tank material. Stainless steel resists corrosion over decades, powder-coated carbon steel is fine for a shop that dries its tanks, and plastic is rare at this size. The Tandagy is the only all-stainless unit here; the ATD-8525 combines stainless and alloy steel.

Mobility and weight. Empty weights run from 52.8 to 80 pounds, and a 12 gallon fill adds close to 100 pounds on top of that. Casters decide whether one person can move it. A fixed cabinet also needs a drain point you can reach without moving it.

Fire-safety hardware. A hinged lid with a fusible link, or a fused cover that closes on temperature rise, is the feature that protects a garage. Four units here have it, and it should be a checkbox on any list you shop from.

Working volume versus tank size. Nominal 20 gallons, 12 gallons working. Buyers who assume they can fill 20 gallons end up with a pump that runs hot and a shop full of flammable liquid.

Choosing the right size. A 20-gallon washer earns its space when you are submerging an engine block, a transmission pan, a differential or a set of brake rotors. If you clean carburetors, bearings and hand tools a few times a month, a 5-gallon washer is the smarter buy. Skip 20 gallons only if you are doing full rebuilds, which is the one job that cannot be done in a bench-top tank.

Whichever fluid you run, keep fasteners and small components in small parts organizers beside the washer rather than loose in the tank. Solvent wrecks plastic bins, and you will not find a soaked M6 nut by looking very hard.

Frequently Asked Questions

Final Verdict: The Best 20 Gallon Parts Washers in 2026

After weighing pump output, working fill volume, tank material, mobility and fire-safety hardware across all eight machines, the JEGS Portable Parts Washer Cart is the pick. It is the highest-rated washer here, the only one on casters, and the one with a draining shelf for parts that come out of the solvent wet.

The JEGS benchside model is the better value and has the largest review base at 100 ratings. The Tandagy stainless washer is the one to buy for a garage where fire safety matters most, and the Torin ATRG4001-20U wins on pump flow and the only one-year warranty in the group.

Whatever you choose, buy it for a 12 gallon working fill, check the pump early, and match the tank to work you actually do. Those three decisions solve most of the problems buyers report in the first month of ownership.