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  • TRUEGARD Automatic Transmission Oil - 5 Gallon Pail

    TRUEGARD Gear Oil EP 100 - 5 Gallon Pail

    $191.63 - $191.63
    $191.63
    $191.63 - $191.63
    $191.63

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

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    $191.63 - $191.63
    $191.63
    $191.63 - $191.63
    $191.63
  • TRUEGARD Automatic Transmission Oil - 5 Gallon Pail

    TRUEGARD Gear Oil EP 150 - 5 Gallon Pail

    $191.63 - $191.63
    $191.63
    $191.63 - $191.63
    $191.63

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

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    $191.63 - $191.63
    $191.63
    $191.63 - $191.63
    $191.63

  • TRUEGARD Gear Oil EP 150 - 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 Automatic Transmission Oil - 5 Gallon Pail

    TRUEGARD Gear Oil EP 220 - 5 Gallon Pail

    $191.63 - $191.63
    $191.63
    $191.63 - $191.63
    $191.63

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

    View full details
    $191.63 - $191.63
    $191.63
    $191.63 - $191.63
    $191.63
  • TRUEGARD Automatic Transmission Oil - 5 Gallon Pail

    TRUEGARD Gear Oil EP 320 - 5 Gallon Pail

    $191.63 - $191.63
    $191.63
    $191.63 - $191.63
    $191.63

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

    View full details
    $191.63 - $191.63
    $191.63
    $191.63 - $191.63
    $191.63

  • 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 Automatic Transmission Oil - 5 Gallon Pail

    TRUEGARD Gear Oil EP 68 - 5 Gallon Pail

    $191.63 - $191.63
    $191.63
    $191.63 - $191.63
    $191.63

    Truegard Gear Oil EP 68 is a high-performance extreme pressure (EP) industrial gear lubricant formulated to meet the rigorous demands of heavily lo...

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    $191.63 - $191.63
    $191.63
    $191.63 - $191.63
    $191.63

  • TRUEGARD Gear Oil EP 68 - 55 Gallon Drum

    $874.99 - $874.99
    $874.99
    $874.99 - $874.99
    $874.99

    Truegard Gear Oil EP 68 is a high-performance extreme pressure (EP) industrial gear lubricant formulated to meet the rigorous demands of heavily lo...

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    $874.99 - $874.99
    $874.99
    $874.99 - $874.99
    $874.99

  • 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
  • Best Sellers badge

    TRUEGARD Global Antifreeze: 100% Concentrate - 55 Gallon Drum

    $828.63 - $828.63
    $828.63
    $828.63 - $828.63
    $828.63

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

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    $828.63 - $828.63
    $828.63
    $828.63 - $828.63
    $828.63

  • TRUEGARD Green Antifreeze 50/50 - 55 Gallon Drum

    $626.51 - $626.51
    $626.51
    $626.51 - $626.51
    $626.51

    Green Pre-Diluted Antifreeze is a high-performance, low silicate coolant engineered to deliver superior corrosion protection for a wide range of ve...

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    $626.51 - $626.51
    $626.51
    $626.51 - $626.51
    $626.51
  • TRUEGARD Soluble 384 Coolant - 275 Gallon Tote

    TRUEGARD HD 258 Cutting Oil - 275 Gallon Tote

    $3,824.59 - $3,824.59
    $3,824.59
    $3,824.59 - $3,824.59
    $3,824.59

    TRUEGARD HD-258 Cutting Oil is an exceptionally heavy duty cutting oil for tough ferrous machining applications. This highly fortified oil is als...

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    $3,824.59 - $3,824.59
    $3,824.59
    $3,824.59 - $3,824.59
    $3,824.59
  • TRUEGARD Soluble Oil - 5 Gallon Pail

    TRUEGARD HD 258 Cutting Oil - 5 Gallon Pail

    $199.07 - $199.07
    $199.07
    $199.07 - $199.07
    $199.07

    TRUEGARD HD-258 Cutting Oil is an exceptionally heavy duty cutting oil for tough ferrous machining applications. This highly fortified oil is also...

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    $199.07 - $199.07
    $199.07
    $199.07 - $199.07
    $199.07

  • TRUEGARD HD-258 Cutting Oil- 55 Gallon Drum

    $888.35 - $888.35
    $888.35
    $888.35 - $888.35
    $888.35

    TRUEGARD HD-258 Cutting Oil is an exceptionally heavy duty cutting oil for tough ferrous machining applications. This highly fortified oil is also ...

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    $888.35 - $888.35
    $888.35
    $888.35 - $888.35
    $888.35
  • 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 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 Industrial Oil AW 100 - 55 Gallon Drum

    $823.81 - $823.81
    $823.81
    $823.81 - $823.81
    $823.81

    TRUEGARD R&O HYDRAULIC OILS are single inhibited hydraulic oils designed for use on low pressure, light duty hydraulic equipment. Applications ...

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    $823.81 - $823.81
    $823.81
    $823.81 - $823.81
    $823.81

  • TRUEGARD Industrial oil R&O 32 - 55 Gallon Drum

    $807.60 - $807.60
    $807.60
    $807.60 - $807.60
    $807.60

    TRUEGARD R&O Hydraulic Oils are premium single inhibited hydraulic fluids engineered specifically for low pressure, light duty hydraulic equipm...

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    $807.60 - $807.60
    $807.60
    $807.60 - $807.60
    $807.60

  • TRUEGARD Industrial oil R&O 46 - 55 Gallon Drum

    $807.60 - $807.60
    $807.60
    $807.60 - $807.60
    $807.60

    TRUEGARD R&O Hydraulic Oils are premium single inhibited hydraulic fluids engineered specifically for low pressure, light duty hydraulic equipm...

    View full details
    $807.60 - $807.60
    $807.60
    $807.60 - $807.60
    $807.60

  • TRUEGARD Industrial oil R&O 68 - 55 Gallon Drum

    $807.60 - $807.60
    $807.60
    $807.60 - $807.60
    $807.60

    TRUEGARD R&O HYDRAULIC OILS are single inhibited hydraulic oils designed for use on low pressure, light duty hydraulic equipment. Applications ...

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    $807.60 - $807.60
    $807.60
    $807.60 - $807.60
    $807.60

  • Truegard Isopar L - 55 Gallon Drum

    $1,015.25 - $1,015.25
    $1,015.25
    $1,015.25 - $1,015.25
    $1,015.25

    Isopar L is a premium-grade solvent renowned for its exceptional purity, colorless appearance, and virtually odorless nature. These attributes make...

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    $1,015.25 - $1,015.25
    $1,015.25
    $1,015.25 - $1,015.25
    $1,015.25

  • TRUEGARD Marine RV - 100 Antifreeze: 55 Gallon Drum

    $1,258.26 - $1,258.26
    $1,258.26
    $1,258.26 - $1,258.26
    $1,258.26

    For winterizing both potable and non-potable water containing systems and equipment. Suitable applications: recreational vehicle water systems, vac...

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    $1,258.26 - $1,258.26
    $1,258.26
    $1,258.26 - $1,258.26
    $1,258.26

  • TRUEGARD Marine RV - 200 Antifreeze: 55 Gallon Drum

    $1,886.54 - $1,886.54
    $1,886.54
    $1,886.54 - $1,886.54
    $1,886.54

    For winterizing both potable and non-potable water containing systems and equipment. Suitable applications: recreational vehicle water systems, vac...

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    $1,886.54 - $1,886.54
    $1,886.54
    $1,886.54 - $1,886.54
    $1,886.54

  • 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

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.