PT3739 (19368140) Multi-Purpose Pigtail Kit

Work great! Better quality than the cheap alternatives here on Amazon. These are like 14g wire compared to the cheaper alternatives which are like 18g wire.

This part was a life saver. My 2018 Silverado 3500hd started running rough and I took it to be scanned. It read #7 cylinder misfire, after some research and a fuel filter change I narrowed it down to my #7 injector pigtail. #7 is problematic because it is located between the firewall of the vehicle and the exhaust which basically just bakes the wiring over time. I had called Orileys, Autozone, Napa, and the Chevy dealer trying to get this connector. The only place with the correct connector that matched mine was Chevy. It was on back order and was $250. All the other parts stores kept pulling up a completely different style and could not find the right replacement. I installed this in about 2 hours while leaving the negative terminals on the battery unhooked during installation. I made sure to put some electrical contact grease on it before clipping it back in due to the extreme temperature #7 is exposed to. Hooked the batteries back up and it runs better than ever. No issues so far, I would highly recommend this product.

Like all automotive electronics, they're a bit over priced for what you get. That said, on the GM L5P Duramax engines the injectors are usually not the culprit when performance issues arise- the OEM connectors are often assigned the problem cause. These are easy to install (ditch the butt splices; solder them in if you can and shrink wrap the joint or use a quality electrical tape instead). They are not "polarity dependent". I carry an extra one or two just in case. Cheaper than replacing an injector and if you do need to do an injector change, put one of these on as well at the same time.

This was a perfect replacement for my injector plug on my 6.6 l5p engine.

Worked as a perfect replacement for a faulty connector in our truck. Definitely check this part before letting anyone convince you it’s the actual injector.

You get what you pay for, this AC Delco plug is a bit more expensive than knock offs but it is of higher quality. - 14 awg Copper wire vs 18 awg aluminum wire in knock off - Made in Mexico vs China - Higher quality shrink butt splice vs knock off Vehicle wire harness appears to also only be 18awg but the cause of the problem is in the connector crimps that heats up and causes higher resistance and computer fault. The heavier gauge wire and subsequent crimp in the connector can only help mitigate this issue. This review is just to help people make a informed decision and see not all items are created equal and that quality costs

Repair plug was less expensive than the dealer and worked as well

Good value

Worked perfectly for a replacement to the #3 Injector Pigtail on my L5P Duramax.