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    Oil Eater Cleaner Degreaser- 55 Gallon Drum

    $516.61 - $516.61
    $516.61
    $516.61 - $516.61
    $516.61

    Safely Dissolves Grease and Oils on Most Everything! Get rid of grease and oil from asphalt and concrete and everything in between; as well as engi...

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    $516.61 - $516.61
    $516.61
    $516.61 - $516.61
    $516.61

  • WD-40 - 55 Gallon Drum

    $1,642.79 - $1,642.79
    $1,642.79
    $1,642.79 - $1,642.79
    $1,642.79

    Known as "the can with thousands of uses", WD-40 protects metal from rust and corrosion, penetrates stuck parts, displaces moisture, and lubricates...

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    $1,642.79 - $1,642.79
    $1,642.79
    $1,642.79 - $1,642.79
    $1,642.79
  • WD-40 - 5 Gallon Pail

    WD-40 - 5 Gallon Pail

    $195.74 - $195.74
    $195.74
    $195.74 - $195.74
    $195.74

    Known as "the can with thousands of uses", WD-40 protects metal from rust and corrosion, penetrates stuck parts, displaces moisture, and lubricates...

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    $195.74 - $195.74
    $195.74
    $195.74 - $195.74
    $195.74
  • WD-40 - Case of 4 (1 Gallon)

    WD-40 - Case of 4 (1 Gallon)

    $165.91 - $165.91
    $165.91
    $165.91 - $165.91
    $165.91

    Known as "the can with thousands of uses", WD-40 protects metal from rust and corrosion, penetrates stuck parts, displaces moisture, and lubricates...

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    $165.91 - $165.91
    $165.91
    $165.91 - $165.91
    $165.91

  • Oil Eater Orange Cleaner Degreaser- 55 Gallon Drum

    $692.54 - $692.54
    $692.54
    $692.54 - $692.54
    $692.54

    Oil Eater. ORANGE Cleaner is a ZERO VOC , highly concentrated, water based alkaline cleaner enhanced with the boosted solvency of citrus. This adv...

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    $692.54 - $692.54
    $692.54
    $692.54 - $692.54
    $692.54
  • WD-40 - Case of 12 (18 Oz Cans)

    WD-40 - Case of 12 (18 Oz Cans)

    $135.05 - $135.05
    $135.05
    $135.05 - $135.05
    $135.05

    Known as "the can with thousands of uses", WD-40 protects metal from rust and corrosion, penetrates stuck parts, displaces moisture, and lubricates...

    View full details
    $135.05 - $135.05
    $135.05
    $135.05 - $135.05
    $135.05
  • Best Sellers badge

    Oil Eater Cleaner Degreaser - 275 Gallon Tote

    $2,369.58 - $2,369.58
    $2,369.58
    $2,369.58 - $2,369.58
    $2,369.58

    Safely Dissolves Grease and Oils on Most Everything! Get rid of grease and oil from asphalt and concrete and everything in between; as well as engi...

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    $2,369.58 - $2,369.58
    $2,369.58
    $2,369.58 - $2,369.58
    $2,369.58

  • Parts Cleaning Solvent - 5 Gallon Pail

    $127.01 - $127.01
    $127.01
    $127.01 - $127.01
    $127.01

    Parts cleaning solvent is a specialized chemical fluid utilized in parts washers to efficiently remove grease, oil, and grime from mechanical and i...

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    $127.01 - $127.01
    $127.01
    $127.01 - $127.01
    $127.01

  • Oil Eater Cleaner Degreaser - 5 Gallon Pail

    $100.33 - $100.33
    $100.33
    $100.33 - $100.33
    $100.33

    Oil Eater. Cleaner & Degreaser is a highly concentrated, alkaline based cleaner designed specifically to be versatile and powerful. Oil Eater....

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    $100.33 - $100.33
    $100.33
    $100.33 - $100.33
    $100.33

  • Oil Eater Cleaner Degreaser - 32oz (Case of 6)

    $81.95 - $81.95
    $81.95
    $81.95 - $81.95
    $81.95

    Oil Eater. Cleaner & Degreaser is a highly concentrated, alkaline based cleaner designed specifically to be versatile and powerful. Oil Eater....

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    $81.95 - $81.95
    $81.95
    $81.95 - $81.95
    $81.95

  • TRUEGARD Parts Cleaning Solvent - 55 Gallon DRUM

    $1,627.50 - $1,627.50
    $1,627.50
    $1,627.50 - $1,627.50
    $1,627.50

    Parts cleaning solvent is a specialized chemical fluid utilized in parts washers to efficiently remove grease, oil, and grime from mechanical and i...

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    $1,627.50 - $1,627.50
    $1,627.50
    $1,627.50 - $1,627.50
    $1,627.50

  • Oil-Dri Premium Absorbent (50 lb bag)

    $61.67 - $61.67
    $61.67
    $61.67 - $61.67
    $61.67

    Oil-Dri - Premium Absorbents.Superior moisture extraction process increases absorption and minimizes dust. Nontoxic, virtually dust-free product a...

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    $61.67 - $61.67
    $61.67
    $61.67 - $61.67
    $61.67

  • Oil Eater Cleaner Degreaser - Case of 4 (1 Gallon)

    $87.45 - $87.45
    $87.45
    $87.45 - $87.45
    $87.45

    Oil Eater. Cleaner & Degreaser is a highly concentrated, alkaline based cleaner designed specifically to be versatile and powerful. Oil Eater....

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    $87.45 - $87.45
    $87.45
    $87.45 - $87.45
    $87.45

  • Oil Eater Orange Cleaner Degreaser- Case of 12 (32 oz)

    $65.12 - $65.12
    $65.12
    $65.12 - $65.12
    $65.12

    You'll Be Surprised at All the Uses You'll Find for this Special Cleaner. This special ORANGE formula is highly concentrated to save money. It cuts...

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    $65.12 - $65.12
    $65.12
    $65.12 - $65.12
    $65.12

  • Oil Eater All Purpose Aerosol Cleaner-12 Case(20 oz)

    $140.20 - $140.20
    $140.20
    $140.20 - $140.20
    $140.20

    All Purpose Multi Surface Cleaner for home and shop.   Oil Eater All Purpose Cleaner is a ready to use aerosol product that is pH neutral and safe ...

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    $140.20 - $140.20
    $140.20
    $140.20 - $140.20
    $140.20

  • Oil Eater Orange Cleaner Degreaser 5 gallon pail

    $143.07 - $143.07
    $143.07
    $143.07 - $143.07
    $143.07

    You'll Be Surprised at All the Uses You'll Find for this Special Cleaner. This special ORANGE formula is highly concentrated to save money. It cuts...

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    $143.07 - $143.07
    $143.07
    $143.07 - $143.07
    $143.07
  • Sprayway P1 Precision Contact Cleaner - Case of 12

    Sprayway P1 Precision Contact Cleaner - Case of 12

    $108.94 - $108.94
    $108.94
    $108.94 - $108.94
    $108.94

    12 Count of 13.5 oz cansThis precision cleaning product prevents corrosion by displacing moisture. Helps prevent electrical malfunctions caused by...

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    $108.94 - $108.94
    $108.94
    $108.94 - $108.94
    $108.94

  • Oil Eater Foam Gun, Handheld

    $191.64 - $191.64
    $191.64
    $191.64 - $191.64
    $191.64

    Foam Gun, Size 10 In.L x 9-1/2 In.H x 9-1/4 In.W, Black, Material Polypropylene, Includes Spray gun & quick disconnect, foamer lid assembly, 96...

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    $191.64 - $191.64
    $191.64
    $191.64 - $191.64
    $191.64

  • Oil Eater Commercial Duty Spill Kit - 20 Gallons

    $238.90 - $238.90
    $238.90
    $238.90 - $238.90
    $238.90

    Oil Eater. Commercial Duty Kit contains spills as soon as they start. This kit is conveniently sized to keep on hand throughout your operation. It...

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    $238.90 - $238.90
    $238.90
    $238.90 - $238.90
    $238.90
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Bulk Diesel Exhaust Fluid for Commercial Trucks and Fleets

Diesel exhaust fluid, commonly called DEF, is used in vehicles equipped with selective catalytic reduction systems to help reduce emissions. Keller-Heartt supplies DEF in commercial quantities for individual trucks, repair facilities, and large fleet operations. Browse available package sizes or visit our BlueDEF collection for DEF fluid, pumps, and dispensing equipment.

Choosing and Handling DEF

Proper DEF storage and handling help protect product quality and reduce the risk of equipment problems. Customers managing commercial vehicles can review our guide to troubleshooting common DEF issues for help identifying contamination, storage, dispensing, and system concerns.

Shop 330- Gallon Tote DEF

Frequently Asked Questions About Diesel Exhaust Fluid

Understanding how to store, handle, and dispense DEF can help protect product quality, prevent equipment issues, and make fleet maintenance more efficient.

  • Diesel exhaust fluid, commonly called DEF, is used in diesel vehicles equipped with selective catalytic reduction systems. It is injected into the exhaust stream to help reduce nitrogen oxide emissions. DEF is not a fuel additive and should never be poured into the diesel fuel tank. For additional vehicle-maintenance products, browse Keller Heartt’s commercial truck supplies.

  • DEF should be kept in a clean, sealed container and protected from contamination, direct sunlight, and extreme temperatures. It should also be stored away from fuels, oils, dust, and other materials that could affect its purity. For more guidance on storage and handling concerns, review Keller Heartt’s DEF troubleshooting guide.

  • Yes. Contaminated DEF can cause warning lights, reduced engine performance, damage to the selective catalytic reduction system, or costly repairs. Water, fuel, oil, dirt, or the wrong dispensing equipment can all affect DEF quality. Keller Heartt’s DEF troubleshooting resource can help customers identify common storage, contamination, and system issues.

  • The right package size depends on fleet size, DEF usage, storage space, and how often new product can be delivered. Smaller fleets may prefer jugs or drums, while larger operations may benefit from totes or other bulk formats. For help planning DEF alongside oil, coolant, and other maintenance fluids, review the Keller Heartt fleet maintenance guide.

  • DEF should be dispensed with equipment specifically designed for DEF because standard fuel or oil pumps may introduce contamination or use incompatible materials. A 55-gallon drum typically requires a drum pump or electric dispensing system, while a tote usually requires an IBC-compatible pump and hose setup. Browse Keller Heartt’s BlueDEF products, pumps, and dispensing systems to compare available options.

    For diesel fuel treatments, anti-gel products, and other cold-weather maintenance needs, visit the fuel and oil additives collection