cat 3406b ?

Discussion in 'Kenworth Forum' started by tshirtgi, Dec 30, 2011.

Dec 30, 2011 #1

tshirtgi Bobtail Member

3

0

Dec 30, 2011

muskogee oklahoma

0

i have a 1990 kw 3406b-ataac engine. what does the b-ataac mean?

tshirtgi, Dec 30, 2011

tshirtgi, Dec 30, 2011

#1
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Dec 30, 2011 #2

mslashbar Medium Load Member

600

804

Jul 22, 2009

elizabeth,co

0

It means it's a b model cat with air to air after cooler.

mslashbar, Dec 30, 2011

mslashbar, Dec 30, 2011

#2
Dec 30, 2011 #3

tshirtgi Bobtail Member

3

0

Dec 30, 2011

muskogee oklahoma

0

thanks for responding. what are the pros and cons to this motor ?

tshirtgi, Dec 30, 2011

tshirtgi, Dec 30, 2011

#3
Dec 30, 2011 #4

mslashbar Medium Load Member

600

804

Jul 22, 2009

elizabeth,co

0

It's a good motor, fully mechanical (no computers). I put over 1 million miles on one before having to inframe it. You do need to change rod and main bearings every 250,000-300,000.

mslashbar, Dec 30, 2011

mslashbar, Dec 30, 2011

#4
Dec 30, 2011 #5

tshirtgi Bobtail Member

3

0

Dec 30, 2011

muskogee oklahoma

0

what does the air to air after cooler do for the engine

tshirtgi, Dec 30, 2011

tshirtgi, Dec 30, 2011

#5
Dec 30, 2011 #6

mslashbar Medium Load Member

600

804

Jul 22, 2009

elizabeth,co

0

The turbo pushes the intake air through the ataac (which is in front of your radiator) which cools it down before going into the intake on your motor.

mslashbar, Dec 30, 2011

mslashbar, Dec 30, 2011

#6