Off Engine Components
Illustration 17 g06136963
(1) Pump electronic unit
(2) Electric lift pump and primary fuel filter
(3) NOx sensors
(4) Flexible exhaust pipe
(5) DEF Heated lines
(6) ECM for aftertreatment
(7) DEF tank header
Pump Electronic Tank Unit (PETU)
Some DEF tanks are combined with the pump
electronics.
SEBU9071-06
23
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