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LS3 standalone harness, oil pressure sensor

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Old 10-20-2017, 04:21 PM
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Default LS3 standalone harness, oil pressure sensor

I have a a new wire harness for a ls3 motor and I believe that I am missing the oil pressure switch that connects to the motor. Attached is a picture of a blue oil pressure plug from the wire harness. I am looking for the oil pressure switch that connects to the motor and takes this plug. I was having trouble finding one and making sure that it will work with the plug I have.
Attached Thumbnails LS3 standalone harness, oil pressure sensor-img_1292.jpg  
Old 10-21-2017, 08:27 AM
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The oil pressure sender is in the picture. It's right behind the intake manifold.
Old 10-21-2017, 12:40 PM
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Yeah I saw that and that takes a circular plug where my blue plug is like half a circle. So do I need a different oil pressure sender for the plug that I have?

The instructions that I have provided two different part numbers based on the year of the motor.
GM# 1216646 for 2008 and older
GM# 12621234/ Delco #213441 for 2009 and up

I am not exactly what sure the year is for my motor, so I looked up those two part numbers and was trying to determine which will work with my blue plug. Thanks for your help!

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Old 10-21-2017, 02:25 PM
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No problem. Just find a sender that has the same plug as the harness. Rockauto is great for seeing pictures of the sensors. Should be easy to figure out.

Andrew
Old 10-21-2017, 03:26 PM
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I have been having trouble finding one that looks like it will work with my plug.
Old 10-21-2017, 09:21 PM
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Mine doesn’t look exactly like yours, but it has 3 very small connectors like yours in the same pattern. I was not able to find a oil pressure switch that matches mine either. I hooked up an external gauge off the oil cooler block, but it always bugged me having the wire just hanging there.
Old 10-21-2017, 09:37 PM
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Originally Posted by bhsanchez72
I have a a new wire harness for a ls3 motor and I believe that I am missing the oil pressure switch that connects to the motor. Attached is a picture of a blue oil pressure plug from the wire harness. I am looking for the oil pressure switch that connects to the motor and takes this plug. I was having trouble finding one and making sure that it will work with the plug I have.

Looks like part#12596951 sensor
Old 10-22-2017, 10:04 AM
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it should be a napa part # op6971
Old 10-22-2017, 10:54 AM
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Thank you guys so much!



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