6NZ vs 3406E

Found these no.s stamped into the turbo housing maybe part no.s ? 4569-33 and under that 11102

 

The 2003 model year trucks have both 6NZ and MBN bridge motors. The last 6NZ engines built and sold for use in the USA and Canada were built on September 31, 2002. The MBN engines for USA and Canadian use started on October 1, 2002 and are in half of the 2003 model year trucks.

 

To have had a recent overhaul by a Cat dealer then it has a LOW NOX File in it. Otherwise CAT wouldn't give the engine a warranty

 

10 4 on 2.7 mil, nother 20k and ill hit 2 mil on my mine

 

I've got a 2WS CAT myself.

 

any body ever try an import a 9nz to the usa everybody cant have a 6nz wont be enough to go around

 

Weren't there any 9NZ C15's used in the USA? Or were they for export markets only?

 

The USA emission regulations changed before CAT went to the 9NZ serial number prefix. So all 9NZ engines were strictly sold as export use only, so none were ever used in the USA. Most of them ended up in Australia or New Zealand

 

but can we import a boat load of 9nz 's

 

Why? They are basivly a 6NZ with a different Prefix, as they ran out of 6NZ serial numbers, they have the same block as the SDP so are perfect for mounting twins as they have the extra external stud holes ect .