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Prime Guard · Tools & Supplies
46771005
In stock · ships from Knoxville
This is a 2.5-gallon container of Diesel Exhaust Fluid (DEF) specifically formulated for diesel engines equipped with a Selective Catalytic Reduction (SCR) system.
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This is a consumable fluid, not a hard part. As long as the fluid meets ISO 22241, AUS 32, and DIN 70070 standards, it is interchangeable with any other certified DEF brand. The container includes a dispensing nozzle for direct filling of the DEF tank.
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DEF is a non‑hazardous solution of high‑purity urea and deionized water that is injected into the exhaust stream to break down harmful nitrogen oxide (NOx) emissions into harmless nitrogen and water. You replace it regularly as part of normal vehicle operation — most heavy‑duty trucks consume DEF at a rate of about 2‑3% of diesel fuel, so keeping a spare jug on hand is common practice.
Part Number: 46771005
PRIME GUARD DEF
Dealer: Knox Trailers
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