$645.20
Built for heavy-duty electrical demands; exact factory fitment.
GM
Duramax
2007.5-2010
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Sealed solenoid; fast cranking response.
Replacement for single relay systems; restores grid heater function.
Direct-fit; monitors crank position for ECM timing.
Heavy-duty upgrade; replaces brittle factory wiring.
Subtotal: $397.23
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