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Heater-Engine Block: Description: Description

Fig 1: Engine Block Heater - 4.7L
GC0028726Courtesy of CHRYSLER LLC
1 - 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.

An optional engine block heater is available with all models. The heater is equipped with a power cord. The cord is attached to an engine compartment component with tie-straps. The heater warms the engine providing easier engine starting and faster warm-up in low temperatures. The heater is mounted in a core hole of the engine cylinder block in place of a freeze plug with the heating element immersed in engine coolant.

Fig 2: Block Heater Components
GC0038943Courtesy of CHRYSLER LLC
1 - BLOCK HEATER

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 engine coolant but makes direct contact with the block. See Fig 2.