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  • TRUEGARD Soluble Oil - 5 Gallon Pail

    TRUEGARD 3025-40 Vanishing-Stamping Lubricant Oil - 5 Gallon Pail

    $207.38 - $207.38
    $207.38
    $207.38 - $207.38
    $207.38

    TRUEGUARD 3025 Vanishing-Stamping Lubricant Oils are advanced, high-performance solutions engineered for a wide range of metalworking applications....

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    $207.38 - $207.38
    $207.38
    $207.38 - $207.38
    $207.38

  • TRUEGARD 3025-40 Vanishing-Stamping Lubricant Oil - 55 Gallon DRUM

    $985.40 - $985.40
    $985.40
    $985.40 - $985.40
    $985.40

    TRUEGUARD 3025 Vanishing-Stamping Lubricant Oils are advanced, high-performance solutions engineered for a wide range of metalworking applications....

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    $985.40 - $985.40
    $985.40
    $985.40 - $985.40
    $985.40
  • 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 304 Rust Preventative - 275 GALLON TOTE

    $4,198.99 - $4,198.99
    $4,198.99
    $4,198.99 - $4,198.99
    $4,198.99

    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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    $4,198.99 - $4,198.99
    $4,198.99
    $4,198.99 - $4,198.99
    $4,198.99

  • 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 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 308 Rust Preventative - 275 GALLON TOTE

    $4,573.99 - $4,573.99
    $4,573.99
    $4,573.99 - $4,573.99
    $4,573.99

    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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    $4,573.99 - $4,573.99
    $4,573.99
    $4,573.99 - $4,573.99
    $4,573.99

  • TRUEGARD 308 Rust Preventative - 55 Gallon Drum

    $915.56 - $915.56
    $915.56
    $915.56 - $915.56
    $915.56

    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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    $915.56 - $915.56
    $915.56
    $915.56 - $915.56
    $915.56
  • TRUEGARD 5W20 Dexos Approved Motor Oil - 5 Gallon Pail

    TRUEGARD 5W20 Dexos Approved Motor Oil - 5 Gallon Pail

    $133.57 - $133.57
    $133.57
    $133.57 - $133.57
    $133.57

    *THIS PRICE IS FOR 55 GAL API SN/GF5 CERTIFIED SYNTHETIC OIL DEXOS APPROVED It's not always easy to find high-quality 5W-20 DEXOS-approved syntheti...

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    $133.57 - $133.57
    $133.57
    $133.57 - $133.57
    $133.57

  • TRUEGARD 5W20 Dexos Approved Motor Oil - 55 Gallon Drum

    $1,052.04 - $1,052.04
    $1,052.04
    $1,052.04 - $1,052.04
    $1,052.04

    TRUEGARD 5W-20 DEXOS-approved Synthetic Oil: Certified for API SN and GF5 Standards Ensure your shop is equipped for any challenge with a 55-gallon...

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    $1,052.04 - $1,052.04
    $1,052.04
    $1,052.04 - $1,052.04
    $1,052.04
  • TRUEGARD 5W20 Synthetic Motor Oil - 5 Gallon Pail

    TRUEGARD 5W20 Full Synthetic Motor Oil - 5 Gallon Pail

    $137.00 - $137.00
    $137.00
    $137.00 - $137.00
    $137.00

    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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    $137.00 - $137.00
    $137.00
    $137.00 - $137.00
    $137.00

  • 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 5W20 Motor Oil - 5 Gallon Pail

    TRUEGARD 5W20 Motor Oil - 5 Gallon Pail

    $107.71 - $107.71
    $107.71
    $107.71 - $107.71
    $107.71

    *THIS IS FOR 5 GAL API SN/GF5 CERTIFIED Whether you only have to handle a few small jobs here and there or you run a shop where vehicles are coming...

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    $107.71 - $107.71
    $107.71
    $107.71 - $107.71
    $107.71
  • TRUEGARD 5W30 Dexos Approved Motor Oil - 5 Gallon Pail

    TRUEGARD 5W30 Dexos Approved Motor Oil - 5 Gallon Pail

    $133.57 - $133.57
    $133.57
    $133.57 - $133.57
    $133.57

    TRUEGARD 5W-30 DEXOS-approved Synthetic Oil: Certified for API SN and GF5 Standards Ensure your shop is equipped for any challenge with a 55-gallon...

    View full details
    $133.57 - $133.57
    $133.57
    $133.57 - $133.57
    $133.57

  • TRUEGARD 5W30 Dexos Approved Motor Oil - 55 Gallon Drum

    $1,052.04 - $1,052.04
    $1,052.04
    $1,052.04 - $1,052.04
    $1,052.04

    TRUEGARD 5W-30 DEXOS-approved Synthetic Oil: Certified for API SN and GF5 Standards Ensure your shop is equipped for any challenge with a 55-gallon...

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    $1,052.04 - $1,052.04
    $1,052.04
    $1,052.04 - $1,052.04
    $1,052.04
  • TRUEGARD 5W30 Synthetic Motor Oil - 5 Gallon Pail

    TRUEGARD 5W30 Full Synthetic Motor Oil - 5 Gallon Pail

    $137.00 - $137.00
    $137.00
    $137.00 - $137.00
    $137.00

    TRUEGARD 5W-30 synthetic motor oil is a premium, versatile lubricant engineered for both cold-weather and hot-weather performance. Its advanced fo...

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    $137.00 - $137.00
    $137.00
    $137.00 - $137.00
    $137.00

  • TRUEGARD 5W30 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 5W-30 synthetic motor oil is a premium, versatile lubricant engineered for both cold-weather and hot-weather performance. Its advanced for...

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    $1,110.45 - $1,110.45
    $1,110.45
    $1,110.45 - $1,110.45
    $1,110.45
  • TRUEGARD Hd Full Synthetic 5W40 Motor Oil - 5 Gallon Pail

    TRUEGARD 5W40 HD Motor Oil - 5 Gallon Pail

    $220.50 - $220.50
    $220.50
    $220.50 - $220.50
    $220.50

    TRUEGARD full synthetic 5W-40 motor oil is essential when you need nothing less than smooth operation. It's carefully formulated to meet the latest...

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    $220.50 - $220.50
    $220.50
    $220.50 - $220.50
    $220.50

  • 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 5W40 HD SYNTHETIC Motor Oil -275 GALLON TOTE

    $5,269.69 - $5,269.69
    $5,269.69
    $5,269.69 - $5,269.69
    $5,269.69

    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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    $5,269.69 - $5,269.69
    $5,269.69
    $5,269.69 - $5,269.69
    $5,269.69

  • 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 Hydraulic Oil AW 32 - 5 Gallon Pail

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

    $154.35 - $154.35
    $154.35
    $154.35 - $154.35
    $154.35

    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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    $154.35 - $154.35
    $154.35
    $154.35 - $154.35
    $154.35
  • Best Sellers badge

    TRUEGARD Anti-Wear Hydraulic Oil AW 32 - 55 Gallon Drum

    $607.13 - $607.13
    $607.13
    $607.13 - $607.13
    $607.13

    * THIS PRICE IS FOR 55 GAL TRUEGARD Anti-Wear Hydraulic Oils are premium performance mineral based hydraulic fluids prevent wear and transfer power...

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    $607.13 - $607.13
    $607.13
    $607.13 - $607.13
    $607.13

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

    $3,018.75 - $3,018.75
    $3,018.75
    $3,018.75 - $3,018.75
    $3,018.75

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

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    $3,018.75 - $3,018.75
    $3,018.75
    $3,018.75 - $3,018.75
    $3,018.75

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.