best solvent for harbor freight parts washer

If you’re like me and spend a lot of time in the garage, whether it’s for automotive repairs or tinkering with machinery, you know a good parts washer is indispensable. My Harbor Freight unit has been a workhorse, but getting those greasy, grimy components truly spotless really boils down to finding the right cleaning agent. I’ve tried various concoctions, and through hands-on experience, I’ve learned what works best with these machines. This guide will walk you through options for the best solvent for Harbor Freight parts washer, alongside essential accessories, to help you make informed choices and achieve sparkling clean results.

IMAGE	PRODUCT NAME	AMAZON LINK
	Black Bull PWP40 Parts Washer Pump, Gray	View on Amazon
	Parts Brush™ Oriflo with Hose (#OR101H) – Flow-Thru Parts…	View on Amazon
	BIG RED ATRG4001-20R Torin 20 Gallon Capacity Electric…	View on Amazon
	Oil Eater Parts Washer Fluid, Water-Based Heavy Duty pH…	View on Amazon
	B’laster 128-PWS Industrial Strength Parts Washer Solvent	View on Amazon
	CRC Parts Washer Solvent, 5 Gal, 05067	View on Amazon
	Von Haas Parts Washer Solvent — 5-Gallon, Model# VHPW5	View on Amazon
	R19835 PARTS WASHER SOLVENT 5 GAL/PAIL	View on Amazon
	DECOHS Parts Washer Brush with 31 Inch Hose- Wear…	View on Amazon
	Red Sun Parts Washer 20 Gallon Cabinet Electric Solvent…	View on Amazon

Black Bull PWP40 Parts Washer Pump, Gray

This submersible pump is a crucial component for any parts washer, especially if you’re looking to replace an old or faulty one in your Harbor Freight unit. It ensures a consistent flow of your chosen cleaning solution, making it easier to wash away stubborn grease and grime effectively. Its compact design allows for easy integration into most parts washer tanks, providing reliable circulation for continuous cleaning action.

• Key features that stand out:
  • Submersible use only: Designed specifically for immersion in cleaning fluids.
  • Compact package: Easy to handle and install.
  • Lightweight: At 1.7 pounds, it won’t add significant bulk to your setup.

Pros:
– Straightforward replacement for many parts washer pumps.
– Ensures continuous solvent circulation for effective cleaning.
– Relatively lightweight and easy to install.

Cons:
– Only suitable for submersible applications, not external pumping.

Best for: Replacing a worn-out or underperforming pump in a Harbor Freight or similar parts washer, ensuring proper solvent circulation.

Expert Opinion: A reliable pump like the Black Bull PWP40 is vital for maximizing the efficiency of any solvent. Without proper circulation, even the best solvent for Harbor Freight parts washer won’t perform optimally, as it needs to continuously flush away contaminants.

Parts Brush™ Oriflo with Hose (#OR101H) – Flow-Thru Parts…

The Oriflo brush isn’t just any brush; it’s a professional-grade tool from the company that essentially invented the modern flow-through parts cleaning brush. Designed to be durable and effective, this brush is built for tough cleaning jobs. Its bullet-shaped tip and stiff Trialoy polyester filament resist mushrooming, making it ideal for scrubbing away caked-on deposits and reaching into tight spaces.

• Key features that stand out:
  • Professional grade: Assembled in the USA with high-quality imported filament.
  • Flow-thru design: Connects to your washer’s pump for continuous solvent delivery.
  • Durable filament: Stiff Trialoy polyester resists wear and tear.
  • Versatile: Works well with both petroleum- and water-based cleaning solutions.

Pros:
– Professional quality ensures long-lasting performance.
– Flow-through design makes cleaning more efficient.
– Durable bristles maintain shape and effectiveness over time.

Cons:
– May be a bit pricier than generic brushes.

Best for: Anyone serious about effective parts cleaning who wants a professional-grade brush that can handle tough grime and various solvents.

Expert Opinion: A high-quality flow-through brush like the Oriflo dramatically enhances the cleaning power of even the best solvent for Harbor Freight parts washer. It allows you to agitate stubborn contaminants while continuously applying fresh solvent, making quick work of tough jobs.

BIG RED ATRG4001-20R Torin 20 Gallon Capacity Electric…

While not a solvent itself, this 20-gallon electric parts washer from BIG RED Torin is a complete system that pairs perfectly with the right solvent. Built from high-strength steel, it offers ample capacity for cleaning engine and gearbox parts. It features an integrated electric pump for automatic solvent circulation, a corrosion-resistant coating for durability, and crucial internal fire safety devices to prevent accidents.

• Key features that stand out:
  • 20-gallon capacity: Large volume suitable for most automotive parts.
  • 5 GPM electric pump: Ensures powerful and continuous solvent circulation.
  • Internal fire safety: Heat-resistant cover with fuse automatically closes.
  • Corrosion-resistant coating: Enhances the unit’s service life.

Pros:
– Large capacity accommodates bigger parts.
– Strong pump provides excellent solvent flow.
– Robust steel construction with corrosion resistance.

Cons:
– Requires significant space due to its size.

Best for: Users looking for a new, robust parts washer system that offers a large capacity and built-in safety features to accompany their chosen cleaning solvent.

Expert Opinion: This unit provides an excellent platform for utilizing the best solvent for Harbor Freight parts washer you can find. Its robust design and effective pump ensure that your chosen cleaning agent can be put to work efficiently and safely, particularly for larger projects.

Oil Eater Parts Washer Fluid, Water-Based Heavy Duty pH…

Oil Eater is a highly regarded water-based parts washer fluid that stands out for its heavy-duty cleaning power combined with environmental consciousness. This pro-strength formula is designed to destroy grease and grime without harsh chemicals. It’s biodegradable, pH-neutral, and even contains a nutrient package to help microbe colonies thrive in “smart washers,” breaking down oils naturally.

• Key features that stand out:
  • Pro strength, heavy duty: Effectively removes tough grease and grime.
  • Water-based & biodegradable: Eco-friendly and safer to use.
  • pH-Neutral formula: Safe for parts, tools, and industrial equipment.
  • Heat tolerant: Performs exceptionally well in heated cleaning systems.

Pros:
– Environmentally friendly and biodegradable.
– Safe for use on a wide range of materials.
– Excellent for both cold and heated parts washers.

Cons:
– Might require a bit more agitation for extremely caked-on deposits compared to petroleum-based options.

Best for: Environmentally conscious users who need a powerful, safe, and versatile water-based solvent for their parts washer, especially those with heated systems.

Expert Opinion: For many, this is the best solvent for Harbor Freight parts washer if you prioritize safety, environmental impact, and versatility. Its ability to work in heated systems and support microbe-based cleaning makes it a fantastic modern choice.

B’laster 128-PWS Industrial Strength Parts Washer Solvent

B’laster is a well-known name in the world of industrial lubricants and cleaners, and their parts washer solvent lives up to the reputation. This industrial-strength formula is specifically engineered to cut through the toughest cutting oils, motor oils, and grease, leaving parts completely residue-free. It boasts a high flashpoint, making it a safer option for use in workshops and garages.

• Key features that stand out:
  • Industrial strength: Cuts through heavy-duty oils and grease.
  • Residue-free: Leaves parts clean with no oily film.
  • High flashpoint (145°F): Enhances safety during use.
  • Versatile use: Safe for all metals, most plastics, and painted surfaces.

Pros:
– Extremely effective on heavy grease and oil.
– Leaves no residue, ensuring parts are ready for assembly or painting.
– Higher flashpoint improves workshop safety.

Cons:
– Can have a strong odor, so good ventilation is recommended.

Best for: Professional mechanics and serious DIYers who need maximum cleaning power for heavily soiled parts and prioritize a residue-free finish.

Expert Opinion: When dealing with truly stubborn automotive grease and cutting oils, the B’laster solvent is a contender for the best solvent for Harbor Freight parts washer. Its industrial strength and residue-free finish are highly valued in busy repair shops.

CRC Parts Washer Solvent, 5 Gal, 05067

CRC is another industry giant, and their parts washer solvent is a reliable, professional-grade cleaner designed for tough industrial and automotive jobs. This formula is excellent at instantly removing grease, oil, dirt, and other contaminants from a variety of surfaces. Notably, it’s a Zero VOC (Volatile Organic Compound) formula, containing no chlorinated solvents, which makes it a more responsible choice for air quality.

• Key features that stand out:
  • Instant contaminant removal: Quickly breaks down grease, oil, and dirt.
  • Zero VOC formula: Contains no chlorinated solvents, better for air quality.
  • High flashpoint (204°F): Offers excellent safety characteristics.
  • Versatile application: Safe for all metal parts, most plastics, and painted surfaces.

Pros:
– Very effective at quick contaminant removal.
– Zero VOC and no chlorinated solvents for environmental benefits.
– Exceptionally high flashpoint for enhanced safety.

Cons:
– The odor, while safer, might still be noticeable in enclosed spaces.

Best for: Workshops and individuals seeking a high-performance, safer solvent that’s tough on grime but mindful of air quality and safety, thanks to its Zero VOC and high flashpoint.

Expert Opinion: The CRC solvent is a strong contender for the best solvent for Harbor Freight parts washer if you need industrial-grade cleaning with an emphasis on safety and reduced environmental impact from VOCs. Its quick action is a major time-saver.

Von Haas Parts Washer Solvent — 5-Gallon, Model# VHPW5

The Von Haas 5-gallon parts washer solvent is a robust option designed for heavy-duty cleaning tasks. This formula is engineered to aggressively break down and remove tough grease, oil, carbon, and other persistent contaminants from metal components. It provides a strong cleaning action suitable for a variety of industrial and automotive applications, ensuring parts are thoroughly degreased and prepared for further work.

• Key features that stand out:
  • Powerful degreasing action: Effectively tackles heavy oil and grease.
  • Industrial strength: Suitable for professional workshop use.
  • Versatile cleaning: Works on a wide range of metal parts.
  • Efficient breakdown: Quickly loosens stubborn deposits for easier removal.

Pros:
– Strong cleaning power for industrial-level grime.
– Large 5-gallon container offers good value.
– Designed for consistent performance in parts washer units.

Cons:
– May have a strong solvent smell requiring good ventilation.

Best for: Garages and workshops that require an aggressive, no-nonsense solvent for regular heavy-duty degreasing of mechanical parts.

Expert Opinion: For mechanics who simply need raw degreasing power, the Von Haas solvent provides an effective solution. It’s a straightforward, hardworking option that can definitely be considered among the contenders for the best solvent for Harbor Freight parts washer when brute force cleaning is required.

R19835 PARTS WASHER SOLVENT 5 GAL/PAIL

The R19835 parts washer solvent comes in a convenient 5-gallon pail, offering an industrial-grade solution for effective soil removal. This formula is specifically designed to remove tough buildup, oil, and grease from metal surfaces, helping to maintain optimal performance of machinery and equipment. It’s formulated for cold solvent cleaning tanks, eliminating the need for heating, and leaves behind a pleasant citrus fragrance.

• Key features that stand out:
  • Effective soil removal: Tackles tough buildup, oil, and grease.
  • Industrial-grade degreaser: Built for demanding commercial tasks.
  • Cold solvent use: No heating required, saving energy.
  • Pleasant citrus fragrance: Reduces typical strong solvent odors.

Pros:
– Highly effective on various metal contaminants.
– Designed for cold use, simplifying operation.
– Citrus fragrance improves the workshop environment.

Cons:
– May not be as aggressive on extremely hardened carbon as some heated solutions.

Best for: Workshops and individuals looking for an effective, industrial-grade cold parts washer solvent that is versatile in application and features a more pleasant aroma.

Expert Opinion: The R19835 solvent is a great option if you prefer cold cleaning and appreciate a more pleasant working environment thanks to its citrus scent. For many, it strikes a good balance, making it a strong contender for the best solvent for Harbor Freight parts washer when cold applications are preferred.

DECOHS Parts Washer Brush with 31 Inch Hose- Wear…

This DECOHS parts washer brush is a practical accessory designed to enhance your cleaning process. Crafted with a quality rubber hose and durable PP bristles, it’s built to withstand regular use in solvent environments. The brush features an ergonomic, threaded handle for a firm, comfortable grip, reducing strain. Its long 31-inch hose ensures good reach and flexibility, delivering solvent directly to the bristles to clean deep crevices and loosen stubborn deposits.

• Key features that stand out:
  • Quality materials: Rubber hose, plastic handle, and durable PP bristles.
  • Ergonomic handle: Threaded design provides a firm, comfortable grip.
  • Long 31-inch hose: Corrosion, oil, and abrasion resistant for superior reach.
  • Versatile use: Suitable for most parts washers, for various cleaning tasks.

Pros:
– Long hose offers excellent reach and flexibility.
– Ergonomic handle reduces hand fatigue during use.
– Durable construction holds up well to solvents.

Cons:
– Bristles might not be as stiff as some professional-grade brushes.

Best for: Enhancing the cleaning power of any parts washer by providing targeted solvent delivery and manual scrubbing for stubborn grime.

Expert Opinion: A good flow-through brush like the DECOHS model is indispensable for working your chosen best solvent for Harbor Freight parts washer into every nook and cranny. It allows for mechanical agitation, which is often crucial for breaking up heavily caked-on deposits that solvent alone can’t reach.

Red Sun Parts Washer 20 Gallon Cabinet Electric Solvent…

The Red Sun 20 Gallon Parts Washer offers a robust and efficient solution for cleaning a wide array of parts. This cabinet-style unit is made from sturdy steel with an anti-rust coating, ensuring durability. It features a high-flow 5-1/4 GPM pump for rapid and efficient solvent circulation, along with a flexible flow-through brush and a 180-degree rotating nozzle for targeted cleaning. Safety is also a priority, with a self-locking fuse that automatically caps the lid if operating temperatures exceed safe limits.

• Key features that stand out:
  • High-flow 5-1/4 GPM pump: Cleans parts quickly and efficiently.
  • Flow-thru brush + rotating nozzle: Provides targeted cleaning and scrubbing.
  • Self-locking fuse: Automatically secures lid for fire safety.
  • Sturdy steel + anti-rust coating: Durable construction for long service life.

Pros:
– High-flow pump handles demanding cleaning tasks.
– Integrated safety features provide peace of mind.
– Durable construction with anti-rust coating.

Cons:
– Not recommended for highly volatile solvents like gasoline.

Best for: Users seeking a complete, durable, and feature-rich 20-gallon parts washer system with strong safety considerations for various workshop environments.

Expert Opinion: This Red Sun unit offers a comprehensive cleaning solution, and when paired with the best solvent for Harbor Freight parts washer, it can tackle almost anything. The combination of high-flow pump, specialized brush, and safety features makes it a solid investment for serious users.

Helpful Comparison Short Insights

When considering the best solvent for Harbor Freight parts washer, it’s clear there are different approaches. For eco-conscious users, the Oil Eater Parts Washer Fluid stands out with its biodegradable, pH-neutral, and microbe-friendly formula, making it a top water-based choice. If you prioritize sheer industrial cleaning power for tough automotive greases and oils, both B’laster Industrial Strength Parts Washer Solvent and CRC Parts Washer Solvent deliver exceptional results, with CRC offering the added benefit of being Zero VOC and having a higher flashpoint for enhanced safety. The R19835 Parts Washer Solvent offers a great balance for cold solvent cleaning with the bonus of a pleasant citrus fragrance, improving the workshop atmosphere. Meanwhile, Von Haas Parts Washer Solvent is a solid, no-frills choice for aggressive degreasing.

Beyond solvents, the overall cleaning experience can be significantly improved by the right equipment. The BIG RED Torin 20 Gallon and Red Sun 20 Gallon units represent excellent upgrades or replacements for a basic Harbor Freight washer, offering robust construction, powerful pumps, and enhanced safety features. For maintaining peak performance, the Black Bull PWP40 Parts Washer Pump is a direct replacement that ensures your chosen solvent is always flowing. Finally, to truly agitate and scrub away stubborn grime, a quality brush like the Parts Brush™ Oriflo or the DECOHS Parts Washer Brush is indispensable, allowing you to maximize the effectiveness of your solvent. Investing in a good brush is almost as important as choosing the right solvent for heavily soiled parts.

Final Verdict

Deciding on the best solvent for Harbor Freight parts washer really comes down to your specific needs and priorities.

For the Eco-Warrior & Heated Washer User: My top recommendation is the Oil Eater Parts Washer Fluid. It’s incredibly versatile, tough on grime, yet gentle on the environment and safe for heated systems. It’s truly a modern solution for efficient cleaning.

For the Heavy-Duty Degreasing Professional: If you’re tackling thick, caked-on automotive grease and demand a residue-free finish, you can’t go wrong with B’laster Industrial Strength Parts Washer Solvent or CRC Parts Washer Solvent. CRC gets a slight edge for its Zero VOC formula and higher flashpoint, offering a safer working environment without compromising power.

For the Cold Cleaner with a Nose for Scent: The R19835 Parts Washer Solvent is an excellent choice for those who prefer cold cleaning and want to avoid that typical harsh solvent smell. Its citrus fragrance is a welcome change.

And remember, no matter which solvent you choose, complementing it with the right tools makes all the difference. A robust washer like the Red Sun 20 Gallon or BIG RED Torin 20 Gallon, coupled with a high-quality flow-through brush like the Parts Brush™ Oriflo, will elevate your cleaning game significantly. Don’t overlook the importance of a reliable pump; the Black Bull PWP40 is a solid choice for maintaining consistent solvent flow.

Comprehensive FAQ Section

Q1: What is the best solvent for Harbor Freight parts washer for general automotive use?
A1: For general automotive use, a heavy-duty, industrial-strength petroleum-based solvent like B’laster Industrial Strength Parts Washer Solvent or CRC Parts Washer Solvent is highly effective at cutting through grease, oil, and grime. If you prefer a water-based, eco-friendlier option, Oil Eater Parts Washer Fluid is an excellent choice, especially if your washer has a heating element.

Q2: Can I use water-based solvents in my Harbor Freight parts washer?
A2: Yes, many modern Harbor Freight parts washers are compatible with water-based solvents. Products like Oil Eater Parts Washer Fluid are specifically designed for this, offering powerful cleaning without the strong fumes associated with petroleum-based options. Always check your washer’s manual to ensure compatibility and avoid potential damage.

Q3: Is it safe to use gasoline or paint thinner as a solvent in my parts washer?
A3: Absolutely NOT. Using highly flammable liquids like gasoline or paint thinner in a parts washer is extremely dangerous and can lead to fires or explosions. Parts washers are designed for solvents with higher flashpoints. Always use solvents specifically formulated for parts washers, such as the ones reviewed here, which have significantly safer flashpoints.

Q4: How often should I change the best solvent for Harbor Freight parts washer?
A4: The frequency depends on how often you use your washer and how dirty the parts are. Generally, you should change the solvent when it becomes heavily contaminated with sludge, loses its cleaning effectiveness, or develops a strong, unpleasant odor. For heavy use, this might be every few weeks; for light use, every few months. Many solvents can be filtered and recycled to extend their life.

Q5: What’s the difference between cold and heated parts washer solvents?
A5: Cold parts washer solvents are formulated to work effectively at ambient temperatures, like the R19835 Parts Washer Solvent. Heated solvents, often water-based like Oil Eater, perform exceptionally well when warmed, as heat helps to break down grease and grime more efficiently. While some cold solvents can tolerate heat, choosing a product specifically designed for your washer’s temperature capabilities is best.

Q6: What accessories can improve the performance of my Harbor Freight parts washer?
A6: Several accessories can enhance your cleaning experience. A high-quality flow-through brush, such as the Parts Brush™ Oriflo or DECOHS Parts Washer Brush, allows you to scrub tough grime while continuously applying fresh solvent. Replacing a weak pump with a stronger one, like the Black Bull PWP40, ensures better solvent circulation. Removable baskets and internal shelves, often found in units like the Red Sun 20 Gallon Parts Washer, also help organize smaller parts.

Q7: How do I properly dispose of used solvent from my parts washer?
A7: Proper disposal of used parts washer solvent is crucial and often legally mandated. Never pour it down the drain or onto the ground. Petroleum-based solvents and heavily contaminated water-based solutions typically need to be taken to a hazardous waste collection facility or handled by a specialized waste disposal company. Check with your local environmental regulations for specific guidelines in your area.