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  • TRUEGARD 5W40 HD SYNTHETIC Motor Oil - 55 Gallon Drum

    $1,185.45 - $1,185.45
    $1,185.45
    $1,185.45 - $1,185.45
    $1,185.45

    There's nothing like having high-quality synthetic motor oil on-hand when you need it. That's why, at Keller-Heartt Oil, we carry TRUEGARD full syn...

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    $1,185.45 - $1,185.45
    $1,185.45
    $1,185.45 - $1,185.45
    $1,185.45

  • TRUEGARD 5W20 Full Synthetic Motor Oil - 55 Gallon Drum

    $1,110.45 - $1,110.45
    $1,110.45
    $1,110.45 - $1,110.45
    $1,110.45

    TRUEGARD 10W-30 HD Synthetic Motor Oil is a premium, high-performance lubricant engineered to deliver exceptional protection and efficiency for bot...

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    $1,110.45 - $1,110.45
    $1,110.45
    $1,110.45 - $1,110.45
    $1,110.45
  • TRUEGARD Soluble Oil - 5 Gallon Pail

    TRUEGARD 308 Rust Preventative - 5 Gallon Pail

    $203.51 - $203.51
    $203.51
    $203.51 - $203.51
    $203.51

    TRUEGARD 308 RUST PREVENTIVE is a premium solvent-based fluid engineered to deliver superior rust protection for metal surfaces. Upon application, ...

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    $203.51 - $203.51
    $203.51
    $203.51 - $203.51
    $203.51

  • TRUEGARD Automotive Low Tox Antifreeze/Coolant 50/50 - 55 Gallon Drum

    $1,564.73 - $1,564.73
    $1,564.73
    $1,564.73 - $1,564.73
    $1,564.73

    TRUEGARD Automotive Low Tox Antifreeze/Coolant 50/50 is a premium pre-diluted engine coolant designed to deliver reliable performance and enhanced ...

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    $1,564.73 - $1,564.73
    $1,564.73
    $1,564.73 - $1,564.73
    $1,564.73
  • TRUEGARD Hydraulic Oil AW 46 - 5 Gallon Pail

    TRUEGARD Anti-Wear Hydraulic Oil AW 46 - 5 Gallon Pail

    $189.53 - $189.53
    $189.53
    $189.53 - $189.53
    $189.53

    TRUEGARD Anti-Wear Hydraulic Oils are premium performance mineral based hydraulic fluids prevent wear and transfer power formulated with patented T...

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    $189.53 - $189.53
    $189.53
    $189.53 - $189.53
    $189.53

  • TRUEGARD Automatic Transmission Oil - 55 Gallon Drum

    $831.23 - $831.23
    $831.23
    $831.23 - $831.23
    $831.23

    Automatic Transmission Fluid (ATF) is a precisely engineered lubricant designed to meet the demanding requirements of modern automatic transmission...

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    $831.23 - $831.23
    $831.23
    $831.23 - $831.23
    $831.23

  • TRUEGARD Premium Diesel Exhaust Fluid DEF - 55 Gallon Drum

    $388.44 - $388.44
    $388.44
    $388.44 - $388.44
    $388.44

    Our 55-gallon drums of TRUEGARD DEF Diesel Exhaust Fluid offer a non-hazardous urea solution that chemically transforms harmful Nitrogen Oxide emis...

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    $388.44 - $388.44
    $388.44
    $388.44 - $388.44
    $388.44

  • TRUEGARD 304 Rust Preventative - 55 Gallon Drum

    $839.80 - $839.80
    $839.80
    $839.80 - $839.80
    $839.80

    TRUEGARD 304 RUST PREVENTIVE is a solvent-based fluid designed to deliver superior rust protection by forming a thin, dry, and slightly waxy film o...

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    $839.80 - $839.80
    $839.80
    $839.80 - $839.80
    $839.80

  • TRUEGARD Gear Oil 220 EP- 55 Gallon Drum

    $985.50 - $985.50
    $985.50
    $985.50 - $985.50
    $985.50

    TRUEGARD GEAR OILS are designed for heavy duty, continuous operation as well as shock loading on all types of industrial steel and bronze ge...

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    $985.50 - $985.50
    $985.50
    $985.50 - $985.50
    $985.50

  • TRUEGARD Automotive Low Tox: 100% Concentrate Propylene Glycol - 55 Gallon Drum

    $2,018.04 - $2,018.04
    $2,018.04
    $2,018.04 - $2,018.04
    $2,018.04

    55 GALLON DRUM. Propylene glycol formula provides an added margin of safety for pets and wildlife in the event of accidental ingestion. This patent...

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    $2,018.04 - $2,018.04
    $2,018.04
    $2,018.04 - $2,018.04
    $2,018.04

  • TRUEGARD #2010 Heavy Duty coolant Soluble Oil - 5 Gallon Pail

    $172.20 - $172.20
    $172.20
    $172.20 - $172.20
    $172.20

    TRUEGARD #2010 Heavy Duty Soluble Oil is a high performance soluble oil concentrate formulated for the customer with a wide range of heavy duty mac...

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    $172.20 - $172.20
    $172.20
    $172.20 - $172.20
    $172.20

  • TRUEGARD Anti-Wear Hydraulic Oil AW 46 - 275 Gallon TOTE

    $3,318.75 - $3,318.75
    $3,318.75
    $3,318.75 - $3,318.75
    $3,318.75

    TRUEGARD Anti-Wear Hydraulic Oils are premium performance mineral based hydraulic fluids prevent wear and transfer power formulated with patented ...

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    $3,318.75 - $3,318.75
    $3,318.75
    $3,318.75 - $3,318.75
    $3,318.75

  • Truegard Global Antifreeze 50/50 - 55 Gallon Drum

    $649.99 - $649.99
    $649.99
    $649.99 - $649.99
    $649.99

    TRUEGARD Global Antifreeze: 100% Concentrate Antifreeze and Coolant protects automotive and light truck engines year round from cooling and overhe...

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    $649.99 - $649.99
    $649.99
    $649.99 - $649.99
    $649.99

  • TRUEGARD ATF - 55 Gallon Drum

    $831.23 - $831.23
    $831.23
    $831.23 - $831.23
    $831.23

    Automatic Transmission Fluid (ATF) is a precisely engineered lubricant designed to meet the demanding requirements of modern automatic transm...

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    $831.23 - $831.23
    $831.23
    $831.23 - $831.23
    $831.23
  • TRUEGARD Soluble Oil - 5 Gallon Pail

    TRUEGARD 304 Rust Preventative - 5 Gallon Pail

    $173.82 - $173.82
    $173.82
    $173.82 - $173.82
    $173.82

    TRUEGARD 304 RUST PREVENTIVE is a solvent-based fluid designed to deliver superior rust protection by forming a thin, dry, and slightly waxy film o...

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    $173.82 - $173.82
    $173.82
    $173.82 - $173.82
    $173.82

  • TRUEGARD Soluble 384 Coolant - 55 Gallon Drum

    $1,329.55 - $1,329.55
    $1,329.55
    $1,329.55 - $1,329.55
    $1,329.55

      Truegard Soluble 384 is the go to soluble coolant for versatile metalworking applications. This multi-purpose heavy duty coolant can machine alum...

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    $1,329.55 - $1,329.55
    $1,329.55
    $1,329.55 - $1,329.55
    $1,329.55

  • TRUEGARD Marine RV - 50 Antifreeze - 55 Gallon Drum

    $748.51 - $748.51
    $748.51
    $748.51 - $748.51
    $748.51

    The TRUEGARD Marine RV 50 Antifreeze is a reliable solution for safeguarding your water-containing systems and equipment throughout the winter mont...

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    $748.51 - $748.51
    $748.51
    $748.51 - $748.51
    $748.51
  • TRUEGARD High Mileage 5W30 Motor Oil - 5 Gallon Pail

    TRUEGARD High Mileage 5W30 Motor Oil - 5 Gallon Pail

    $93.87 - $93.87
    $93.87
    $93.87 - $93.87
    $93.87

    *THIS PRICE IS FOR 5 GAL PAIL. TRUEGARD HIGH MILEAGE MOTOR OILS are formulated for engines with 75,00 miles and more. They provide extra protection...

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    $93.87 - $93.87
    $93.87
    $93.87 - $93.87
    $93.87
  • TRUEGARD Hydraulic Oil AW 32 - 5 Gallon Pail

    TRUEGARD Anti-Wear Hydraulic Oil AW 32 - 5 Gallon Pail

    $184.13 - $184.13
    $184.13
    $184.13 - $184.13
    $184.13

    TRUEGARD Anti-Wear Hydraulic Oils represent a new standard in hydraulic fluid performance, engineered to meet the rigorous demands of both industri...

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    $184.13 - $184.13
    $184.13
    $184.13 - $184.13
    $184.13

  • TRUEGARD High Mileage 5W30 Motor Oil - 55 Gallon Drum

    $717.79 - $717.79
    $717.79
    $717.79 - $717.79
    $717.79

    *THIS PRICE IS FOR 55 GAL drum.   TRUEGARD HIGH MILEAGE MOTOR OILS are formulated for engines with 75,00 miles and more. They provide extra protect...

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    $717.79 - $717.79
    $717.79
    $717.79 - $717.79
    $717.79

  • TRUEGARD 960 NSF Certified Food-Grade Propylene Glycol Inhibited Coolant 100% Concentrate - 330 TOTE

    $10,894.50 - $10,894.50
    $10,894.50
    $10,894.50 - $10,894.50
    $10,894.50

    TRUEGARD 960 is an NSF Certified, food-grade inhibited propylene glycol fluid which is intended for use in antifreeze and heat transfer application...

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    $10,894.50 - $10,894.50
    $10,894.50
    $10,894.50 - $10,894.50
    $10,894.50

  • TRUEGARD Gear Oil EP 320 - 55 Gallon Drum

    $1,032.76 - $1,032.76
    $1,032.76
    $1,032.76 - $1,032.76
    $1,032.76

    TRUEGARD GEAR OILS are designed for heavy duty, continuous operation as well as shock loading on all types of industrial steel and bronze ge...

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    $1,032.76 - $1,032.76
    $1,032.76
    $1,032.76 - $1,032.76
    $1,032.76

  • TRUEGARD Syncool 428 - 55 Gallon Drum

    $1,320.64 - $1,320.64
    $1,320.64
    $1,320.64 - $1,320.64
    $1,320.64

      TRUEGARD SYNCOOL 428 is a heavy duty water based cutting fluid concentrate. When diluted properly, TRUEGARD SYNCOOL 428 is suitable for most mach...

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    $1,320.64 - $1,320.64
    $1,320.64
    $1,320.64 - $1,320.64
    $1,320.64

  • TRUEGARD Cutting Oil 1230-15 - 55 Gallon Drum

    $772.42 - $772.42
    $772.42
    $772.42 - $772.42
    $772.42

    TRUEGARD Cutting Oil 1230-15 is a dual purpose oil designed for metalworking as well as machine lubrication. TRUEGARD Cutting Oil 1230-15 is intend...

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    $772.42 - $772.42
    $772.42
    $772.42 - $772.42
    $772.42

Commercial Truck Supplies

Keeping commercial trucks on the road requires the right fluids, lubricants, and maintenance supplies. Keller-Heartt carries commercial truck supplies for fleet operators, repair shops, owner-operators, and heavy-duty vehicle maintenance teams, with products available in everything from cases and pails to 55-gallon drums and bulk totes.

Shop diesel exhaust fluid (DEF), heavy-duty motor oil, antifreeze and coolant, fuel and oil additives, hydraulic fluids, lubricants, cleaners, and fluid-handling equipment from brands including Truegard, Shell, BlueDEF, Peak, and other trusted manufacturers.

Diesel Exhaust Fluid for Commercial Trucks

Diesel exhaust fluid (DEF) is essential for diesel vehicles equipped with Selective Catalytic Reduction (SCR) systems. Maintaining a reliable supply of DEF helps keep emissions systems operating properly and commercial trucks on the road.

Keller-Heartt offers BlueDEF and other diesel exhaust fluid options in multiple quantities, including smaller containers, 55-gallon drums and 275- and 330-gallon totes for larger fleet operations. DEF pumps and dispensing equipment are also available for shops and facilities managing fluid in bulk.

Heavy-Duty Diesel Engine Oil

Commercial diesel engines operate under demanding conditions, making the right heavy-duty motor oil an important part of preventive fleet maintenance.

Keller-Heartt carries diesel engine oils and lubricants for commercial trucks and heavy-duty equipment, including Truegard and Shell products in multiple viscosity grades and container sizes. Fleet managers can purchase smaller quantities or stock maintenance facilities with pails, drums and bulk options based on usage.

Fuel & Oil Additives

Diesel fuel additives and oil additives can support specific maintenance needs, including cold-weather operation, fuel system performance and lubrication.

Keller-Heartt carries fuel treatments and additives for commercial diesel vehicles from brands including Power Service and other manufacturers. Product selection should be based on the fuel system, operating conditions and manufacturer's recommendations.

Fleet Lubricants & Maintenance Fluids

Commercial fleet maintenance extends beyond engine oil and DEF. Depending on the truck and equipment, maintenance programs may also require hydraulic oil, transmission fluid, gear oil, grease, brake cleaner and other specialty lubricants and fluids.

Keeping the appropriate products on hand can help maintenance teams perform scheduled service efficiently and reduce delays caused by waiting for frequently used fluids and supplies.

Buying Commercial Truck Fluids in Bulk

For fleets and commercial repair facilities, purchasing frequently used fluids in larger quantities can simplify inventory management and reduce the need for repeated small orders.

Keller-Heartt offers many commercial truck fluids in cases, pails, 55-gallon drums, 275-gallon totes and 330-gallon totes, depending on the product. Bulk options are especially useful for DEF, motor oil, coolant and other fluids used regularly across multiple vehicles.

Not sure how much product your operation needs? Keller-Heartt can help determine an appropriate product and container size based on your fleet and maintenance requirements.