GM GENUINE PT3778
GM GENUINE part number PT3778 is a headlamp wiring harness / connector in the Electrical-Connector system. This catalog matches it to 2 year-and-engine configurations from 2009 to 2010.
Verified fitment includes 2010 Cadillac STS 4.6L V8 ; 2009 Saturn Outlook 3.6L V6 . See every vehicle this part fits.
Frequently Asked Questions
What is GM GENUINE PT3778?
GM GENUINE part number PT3778 is a headlamp wiring harness / connector with published application data for 2 vehicle configurations from 2009 to 2010. Use the manufacturer part number to cross-reference your old part or a repair quote before you order.
Which vehicles does GM GENUINE PT3778 fit?
This catalog matches PT3778 to 2 year-and-engine configurations from 2009 to 2010. Open the compatible-vehicles list for every make, model and engine, and read the notes for position or trim qualifiers.
Is GM GENUINE PT3778 OEM or aftermarket?
What matters is the published application data for this part number, not the label on the box. GM GENUINE PT3778 is listed with its manufacturer part number so you can compare it to an OEM number or another brand that covers the same fitment.
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