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If you operate a modern Sany crawler excavator—such as the SY135, SY155U, SY215HS, or the heavy-duty SY350C-9LCHD—keeping your machine running...

If you operate modern Caterpillar (CAT) heavy machinery—whether it is a 320F excavator, a D6T dozer, or a 950M wheel...

If you operate a Hitachi Zaxis excavator powered by an Isuzu 4HK1 or 6HK1 engine—such as the ZX130-6, ZX210LC-6, or...

How to Override a Perkins 1204F NOx Sensor Fault Countdown Without Permanent ECU Remapping If you are operating heavy plant...

Can you delete DEF on a tractor? Technically, compatible tractor DEF / SCR systems can be electronically bypassed, but whether...

Construction and industrial equipment is regularly exported from the USA, UK and Europe to countries where emissions requirements, fuel quality,...

DEF Delete for agricultural machinery is a solution considered by operators dealing with recurring DEF, SCR and NOx sensor faults...

DEF Delete for construction equipment is a solution considered by equipment owners dealing with recurring DEF, SCR and NOx sensor...

EPA penalties for DEF delete and emissions tampering can be substantial. Under the US Clean Air Act and implementing regulations,...

Is DEF delete legal in the USA? In general, you should not assume that removing, bypassing or rendering required diesel...

Are DEF deletes legal in New York? You should not assume that removing, disabling or bypassing required DEF / SCR...

Are DEF deletes legal in Florida? Florida equipment and vehicle owners need to consider both federal Clean Air Act requirements...