MAP Sensor Adapter Harness – GM LS1 LS2 LS6 To LS3 LS9 LSA – Gen 3 To Gen 4 Conversion

If you're deep into an LS swap, you know the little stuff matters.

This MAP sensor adapter harness lets you connect a Gen 3 MAP sensor (like on LS1, LS2, LS6) to a Gen 4 intake manifold (LS3, LS9, LSA).

It's a simple plug-and-play solution—no cutting or splicing.

Just plug it in and your MAP sensor will talk to your ECU like it's supposed to.

Interchange numbers include for 558-416 and 558 416.

It's unbranded but built to do the job.

Whether you're building a track car, restomod, or just upgrading your intake, this little harness saves headaches.

Direct replacement fit, brand new, ready to go.