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Zerex HD Nitrite Free Extended Life Concentrate Antifreeze/Coolant 1 GA

  • Based on 75 reviews
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Availability: In Stock.
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Arrives Monday, May 4
Order within 21 hours and 26 minutes
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Configuration: Concentrate


Size: 1 Gallon


Features

  • Heavy duty formula meets the harsher demands of heavy-duty diesel engines such as Cummins, DDC, International, Paccar, Volvo and Ford trucks
  • Organic acid technology (oat) helps protect against rust and hard-water scale deposits
  • Silicate, amine, and borate-free formula keeps cooling system metals protected
  • Yellow concentrate formula ready to be mixed 50/50 with clean tap water or demineralized water
  • 10 years/1,000,000 mile guarantee protects against engine failure caused by freeze-ups or boil-overs
  • Batch-tested in the lab, fleet-tested in the real world to help car and truck owners achieve optimal performance and maximize engine life.
  • Contains 30 50 ppm of denatonium benzoate as a bittering agent

Description

Zerex Heavy Duty Nitrite Free Extended Life Antifreeze/Coolant from Valvoline is formulated with next-generation chemistry to meet the extreme demands of today’s heavy-duty diesel engines. Cummins, DDC, International, Paccar, Volvo and Ford trucks require a nitrite-free ELC solution including ACERT and EGR technologies. This antifreeze/coolant can also be used in gasoline engines, stationary power, marine, natural gas and light duty applications. Our patented Organic Acid Technology (OAT) formula helps extend the longevity of your engine by protecting internal parts from cavitation and hard-water scale deposits while preventing freezing and boil-overs. Plus, this silicate, amine and borate-free formula helps safeguard cylinder liners and water pumps by protecting their internal surfaces from pitting and corrosion, too. And it’s guaranteed to perform for up to 10 years, 1,000,000 miles and 20,000 hours of operation with no supplemental coolant additives required when used in conformity with package and label instructions and specifications. When it comes to protecting and prolonging the performance of your heavy-duty engine, trust Zerex for the long haul.

Manufacturer: ‎Valvoline


Brand: ‎Zerex


Model: ‎Extended Life Nitrite Free


Item Weight: ‎9.74 pounds


Product Dimensions: ‎7.38 x 3.83 x 12 inches


Item model number: ‎846439


Manufacturer Part Number: ‎846439


Special Features: ‎SILICATE, AMINE, AND BORATE-FREE FORMULA keeps cooling system metals protected


Date First Available: September 30, 2017


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, May 4

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Nitrate free
Changed over ram 2500 to this stuff and had a small leak after but runs cooler now
Reviewed in the United States on March 1, 2026 by Scott stevenson

  • Just like oem
Good fit for super.duty
Reviewed in the United States on February 12, 2026 by Wayne Muhl

  • FANTASTIC PRODUCT
Put in my 2021 Jeep Wrangler eco diesel. Lowered my temps by 10-20 degrees F especially use full when towing camper
Reviewed in the United States on September 8, 2025 by Mason Maloney

  • 1994 F150 4.9L
Flushed my truck and put this in. Coolant filter installed. Hate the stupid green. Some shop I had taken my truck for some work done topped my truck off with green. Had to flush it out. I had Motorcraft gold in it, but switched to this. I pay attention to coolant PH, coolant additives and things. I prefer to keep my coolant clean and the PH correct. With the filter, My truck is just like a HD Highway diesel, just keep the filter changed and on top of PH and engine/ water pump last long time. So do hoses when they aren't corroding from inside. Coolant was a good price when I bought it. A little cheaper than autoparts wearhouses locally wanted 20$ something for coolant. ... show more
Reviewed in the United States on September 7, 2024 by Aradiel

  • Valvoline quality coolant
Can't go wrong with this, it's an OAT coolant so make sure your truck needs an OAT coolant. Because if you mix with the older HOAT standard you'll end up with a radiator full of Yello. So, you're warned.
Reviewed in the United States on February 19, 2025 by Ozy Steiner

  • Works
Takes a minute to get used to the taste, but other than that works just like any other coolant
Reviewed in the United States on April 23, 2025 by Brandon V.

  • Meets Cummins engine requirement for an OAT HD Nitrite Free concentrate free antifreeze/coolant
Fit the Cummins requirements for the antifreeze/coolant.
Reviewed in the United States on February 15, 2025 by Phil

  • I would buy again
Fresh shipping great product great bargain
Reviewed in the United States on March 5, 2025 by Dewayne

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