Durango 2WD V8-5.7L Hybrid (2009)
Engine Block Heater: Description and Operation
Engine Block Heater - Description
ENGINE BLOCK HEATER
WARNING: Do not operate engine unless block heater cord has been disconnected from power source and secured in place. The power cord
must be secured in its retaining clips and routed away from exhaust manifolds and moving parts.
The 3.7L/4.7L engine block heater is mounted in a core hole of the engine cylinder block (1) (in place of a freeze plug) with the heating element
immersed in engine coolant. The power cord is attached to an engine compartment component with tie-straps.
The 5.7L engine has the block heater located on the left side of the engine below the exhaust manifold in the rear of the engine (1) and is not immersed in
the engine coolant but makes direct contact with the block.
