Best Parts Cleaner Solvent for Parts Washers and Shop Cleanup

#1 · Best Overall

1. B’laster Parts Washer Solvent

• Volume: 5 gallons
• Form: Liquid
• Size: 5 Gallon

Best for: For garage parts prep.

Why it ranks #1: A 5-gallon parts washer solvent designed to remove oil, grease, and grime; listed for metals, most plastics, and painted surfaces, with no residue.

A high-flashpoint formula that cleans oil, grease, and grime gives this B’laster solvent a clear workshop role: removing buildup before repairs, painting, or reassembly. Its 5-gallon liquid format suits a parts-washing routine where tackling multiple dirty components matters more than having a small, targeted spray can.

B’laster says the formula breaks down tough oil, grease, and grime quickly, which can reduce scrubbing during maintenance and rebuild work. It is specified for metals, most plastics, and painted surfaces, giving it a broader stated material range than a metal-only cleaner. The no-residue claim is useful when parts are headed toward painting or reassembly. Its 5-gallon volume is best suited to a workshop that uses solvent repeatedly, rather than an occasional one-part cleanup.

Skip it if you need a small, targeted spray for one component; CRC Quick Clean Safety Solvent comes in a 19-ounce aerosol.

Choose this for recurring garage or workshop parts cleaning, especially before repairs, painting, or reassembly. Its 5-gallon volume favors regular use, and the stated surface range still does not extend to every material.

Listed on Amazon as: B’laster Parts Washer – Parts Cleaner Solvent – High Flashpoint Formula Cleans Oil, Grease & Grime, No Residue, Works on Metals, Most Plastics & Painted Surfaces – 5‐Gallon

#2 · Highest Flashpoint

2. CRC Parts Washer Solvent

• Volume: 5 gallons
• Form: Liquid
• Size: 640 Fl Oz (Pack of 1)

Best for: For high-flashpoint solvent use.

Why it ranks #2: This 5-gallon washer solvent has a listed 204°F flashpoint and zero-VOC formula, and is intended for metal, most plastic, and painted parts.

A 204°F high flashpoint and zero-VOC formula define CRC’s five-gallon parts washer solvent for buyers prioritizing those specifications. It is described as instantly removing grease, oil, dirt, and other contaminants, with use listed for all metal parts, most plastics, and painted surfaces across varied shop cleaning needs.

CRC’s stated material compatibility includes all metal parts, most plastics, and painted surfaces, giving a parts washer user a broad set of listed targets. The formula contains no chlorinated solvents and is identified as zero VOC, while the 204°F high flashpoint is a specific operating characteristic for comparison when selecting a solvent. Supplied in a five-gallon pail, it is suited to a recurring washer workflow rather than a single small cleanup.

Skip it if you need a portable aerosol for targeted component cleaning; CRC Quick Clean Safety Solvent is supplied as a 19-ounce spray.

A fit for shops choosing a five-gallon washer solvent by its zero-VOC, non-chlorinated, and 204°F flashpoint specifications. Its pail quantity makes more sense for recurring parts cleaning than for occasional, localized degreasing.

Listed on Amazon as: CRC Parts Washer Solvent – Zero VOC, Industrial-Grade Cleaner – 5 Gallon

#3 · Low-Odor Solvent

3. Zep Dyna 143

• Form: Liquid
• Size: 128 Fl Oz (Pack of 5)

Best for: For Zep washer owners.

Why it ranks #3: The 5-gallon formula uses odorless solvents and has a 143°F flashpoint; it is designed for named Zep parts washers and can be used by brush or dip.

Compatibility with named Zep equipment sets Dyna 143 apart: it is specified for Dyna Clean, Dyna Brute FB, Super Brute FB, Brake Buggy, and Dyna Mate systems. Its 143°F flash point and low-evaporation formula support a shop-focused cleaning workflow, with odorless solvents that dissolve and flush away grease, oil, and soil.

Dyna 143 is intended for use in Zep parts washers, and the description also allows brush or dip application, giving buyers options for how to handle a cleaning task. In a filtered Zep washer, solvent is continuously recycled, linking the formula to an established maintenance workflow. The low evaporation rate and vapor pressure are stated to minimize evaporative loss and employee exposure; its 143°F flash point is higher than the listed 107°F for mineral spirits.

Skip it if you need a cleaner for microbial smart washers; Oil Eater Parts Washer Fluid specifically lists that compatibility.

Best suited to shops operating the named Zep washers or using filtered Zep equipment for solvent recycling. The brush-or-dip option adds flexibility, but buyers outside those systems should check whether this solvent fits their existing washer.

Listed on Amazon as: Zep Dyna 143 Parts Washer Solvent – 5 Gallon (1 Bucket) 36635 – Designed for use in Part Washes

#4 · Water-Based Pick

4. Oil Eater Parts Washer Fluid

• Form: Liquid
• Size: 640 Fl Oz (Pack of 1)

Best for: For water-based washer systems.

Why it ranks #4: This 5-gallon, pH-neutral fluid is explicitly suitable for microbial smart washers and most parts washer systems, with low-odor and non-toxic listed features.

Water-based, pH-neutral fluid makes Oil Eater a fit for buyers seeking cleaner for microbial smart washers and most parts washer systems. The heavy-duty formula targets oil, grease, grime, and dirt, while its low-odor specification helps distinguish it from conventional solvent options for routine parts and tool cleaning.

Oil Eater explicitly identifies compatibility with microbial smart washers and most parts washer systems, so buyers can match it to supported equipment rather than treating it as an all-purpose solvent. Its water-based formula is also listed for heated cleaning and tool cleaning, broadening the tasks it can cover. The pH-neutral, non-abrasive, and low-odor specifications help characterize its cleaning approach, while the 5-gallon quantity suits a washer that sees repeated use.

Skip it if you need a stated high-flashpoint formula for solvent washing; B’laster Parts Washer Solvent lists that feature.

A practical match for shops using microbial smart washers or other supported parts washer systems, especially when tool and heated cleaning share the workflow. Choose it for water-based washing, not when a high-flashpoint solvent is the requirement.

Listed on Amazon as: Oil Eater Parts Washer Fluid, Water-Based Heavy Duty pH Neutral, Smart Microbe Safe Parts Cleaner Systems, 5 Gallons

#5

5. Zep Citrus Parts Washer Solvent

• Volume: 5 gallons
• Form: Liquid
• Size: 640 Fl Oz (Pack of 1)

Best for: For cold-solvent washer tanks.

Why it ranks #5: A 5-gallon, ready-to-use cold-solvent washer fluid for soaking, spraying, or wiping; its citrus fortification is described as adding cleaning power.

Cold-solvent tank use is the defining fit for Zep R19835: its supplied features specify cleaning without heating. The citrus-fortified solvent is ready to use in solvent-based parts washer systems and targets tough buildup, oil, and grease on metal surfaces, while its application options extend to spraying, wiping, or dipping.

The cold-solvent specification lets buyers consider this cleaner for a tank workflow that does not require heating. Zep also lists spray, wipe, and dip application, so the same ready-to-use solvent can suit different ways of handling parts. Citrus fortification is described as adding cleaning power and a pleasant fragrance, while the product targets soil, oil, and grease on metal. Its five-gallon pail supports repeated industrial or commercial cleaning tasks.

Skip it if you need listed compatibility with most plastics and painted surfaces; CRC Parts Washer Solvent names both.

Consider this for industrial or commercial users with cold-solvent tanks who value flexible spray, wipe, and dip application. Its stated cleaning surface is metal, so it is a narrower fit when mixed materials are involved.

Listed on Amazon as: R19835 PARTS WASHER SOLVENT 5 GAL/PAIL

#6

6. B’laster 128-PWS

• Volume: 1 gallons
• Form: Liquid
• Size: 128 Fl Oz (Pack of 1)

Best for: For residue-free parts cleaning.

Why it ranks #6: The 1-gallon version offers B’laster’s residue-free, high-flashpoint parts washer formula for metals, most plastics, and painted surfaces.

A stated 145°F high flashpoint and residue-free finish give B’laster 128-PWS two concrete selling points for parts washer users. The one-gallon liquid is specified to cut cutting oil, motor oils, and grease, and its listed compatibility with metals, most plastics, and painted surfaces makes its material range especially useful.

The product description positions this solvent for re-circulating parts washers and says it removes oil, grease, and grime from metals, most plastics, and painted surfaces. That compatibility gives buyers options when a job includes more than bare metal. Its residue-free claim can help when cleaned components are headed for further work, while the one-gallon volume offers a smaller quantity than the five-gallon shop pails in this roundup. The listed high flashpoint is 145°F.

Skip it if you run a washer through heavy daily volume; Zep Dyna 143 is offered in a five-gallon bucket.

Consider this for parts washer users who value a residue-free finish and need stated compatibility across metals, most plastics, and painted surfaces. The one-gallon quantity is a more natural fit for lighter or less frequent cleaning.

Listed on Amazon as: B'laster 128-PWS Industrial Strength Parts Washer Solvent

#7

7. Oil Eater Original Degreaser

• Volume: 5 gallons
• Form: Liquid
• Size: 640 Fl Oz (Pack of 1)

Best for: For concentrated degreasing tasks.

Why it ranks #7: This concentrated, biodegradable 5-gallon water-based cleaner can be used in parts washers, but its listing is broader than a dedicated washer fluid.

A concentrated, water-based formula lets Oil Eater’s five-gallon cleaner cover more than parts washing alone: supplied facts list use in equipment, parts washers, and pressure washers. It targets grease, oil, dirt, and grime, with additional stated uses on tools, engines, concrete, pavers, and asphalt for buyers managing varied cleanup jobs.

The concentrate format is listed for equipment, parts washers, and pressure washers, making it relevant to a shop that uses different cleaning tools. Oil Eater also identifies degreasing tools, engines, and parts, as well as removing grease stains and spills. Its water-based composition and biodegradable material feature provide important context for buyers comparing cleaner types. The product information cautions against use on hot or warm aluminum, glass, leather, silk, and suede, so surface selection matters.

Skip it if you need a solvent specified for painted surfaces and most plastics; B’laster 128-PWS lists those materials.

Choose this for buyers who want one concentrate for parts, equipment, pressure-washer use, and listed stain cleanup. Observe its stated material restrictions, particularly around warm aluminum and delicate surfaces, before choosing a cleaning task.

Listed on Amazon as: Oil Eater AOD5G35438 Original 5 Gallon Cleaner/Degreaser, light yellow, 640 Fl Oz (Pack of 1)

#8

8. Berryman B-9 Chem Dip

Best for: For small-part immersion cleaning.

Why it ranks #8: A 3-quart immersion cleaner with an included basket and pail targets soaking small parts; it is not a recirculating washer solvent.

A fast-acting immersion cleaner supplied with a basket and Armlock makes Berryman B-9 Chem Dip a compact, contained choice for small-part cleaning. It targets gum, varnish, sludge, hard carbon, oil, and grease without heat or agitation, and is listed for most metals and alloys as well as plastic, rubber, and most painted components.

The included basket and Armlock support an immersion workflow for components that fit the 3-quart pail, while the stated no-heat, no-agitation operation keeps the process straightforward. Berryman lists the cleaner for metals and alloys, plus plastic, rubber, and most painted components, making its material range useful for mixed-part jobs. The fast-acting formula targets carbon, gum, varnish, sludge, oil, and grease; the pail is notably smaller than bulk washer containers.

Skip it if you need a five-gallon supply for a recurring washer; Berryman’s included pail holds three quarts.

Choose this for small components that fit its 3-quart immersion pail, particularly when you want cleaning without heat or agitation. Its basket and broad listed material range help, but container capacity sets a clear limit.

Listed on Amazon as: Berryman 0996-ARM B-9 Chem Dip Parts Cleaner with Basket and Armlock, 3/4-Gallon Pail

#9

9. CRC Quick Clean Safety Solvent

• Volume: 5 gallons
• Form: Spray
• Size: 19 oz (Pack of 1)

Best for: For targeted equipment degreasing.

Why it ranks #9: The 19-ounce aerosol removes grease and contaminants from many mechanical components, but its spray format is not a bulk parts washer fluid.

A 19-ounce aerosol format makes CRC Quick Clean a targeted option for removing contaminants, oil, grime, sludge, grease, and tar from equipment. Its listed uses include motors, air tools, brakes, chains, bearings, generators, and pumps, giving mechanics a ready-to-apply alternative to handling a five-gallon washer pail.

The spray form and 19-ounce size suit localized cleaning of the many listed components, including mechanical brakes, clutches, wire rope, machinery, compressors, and hoists. CRC describes the product as residue-free, which is relevant when a cleaned part needs a clean finish. The supplied formula information identifies a chlorinated base, a detail buyers should weigh when comparing it with non-chlorinated choices. It is intended for targeted equipment degreasing rather than bulk tank refills.

Skip it if you need a non-chlorinated bulk washer solvent; CRC Parts Washer Solvent is zero VOC and contains no chlorinated solvents.

Choose this for mechanics who need spray application on listed equipment and components rather than a large-volume parts washer refill. Its chlorinated formula is a relevant boundary for buyers selecting by solvent composition.

Listed on Amazon as: CRC Quick Clean Safety Solvent And Degreaser 03180 – 19 WT OZ, Clear, Aerosol Cleaner – Industrial Cleaners And Degreasers

#10

10. Gumout Regane Parts Cleaner

• Volume: 15 fluid oz
• Form: Spray
• Size: 15 oz (Pack of 1)

Best for: For automotive brake and carb work.

Why it ranks #10: This 15-ounce fast-drying spray is aimed at unpainted automotive metal and brake components rather than use as solvent in a parts washer.

A powerful jet spray that dries fast gives Gumout Regane a focused role in automotive cleaning, from carburetors and throttle bodies to brake drums, rotors, and calipers. Its formula targets gum, varnish, sludge, oil, brake fluid, grease, and dirt on unpainted metal parts, with no CFCs or chlorinated solvents.

The spray is specified for unpainted metal parts and named automotive components, so it can be directed at localized engine and brake cleanup rather than used as a general washer fluid. Gumout says the jet penetrates stubborn deposits, while the fast-drying feature supports a quicker return to the next maintenance step. Its listed targets include gum, varnish, sludge, brake fluid, and grease. The 15-ounce can is suited to focused jobs, not a tank-filling workflow.

Skip it if you need solvent for painted surfaces or most plastics; B’laster 128-PWS lists compatibility with both.

A suitable pick for automotive maintenance focused on unpainted metal engine or brake parts, especially when deposits call for a directed jet. It is not the right choice for cleaning painted components or a parts-washer tank.

Listed on Amazon as: Gumout 540001 Regane Parts Cleaner and Degreaser, 15 oz.