Description
Check the specifications, dimensions, variation details, referenced part numbers, and available fitment evidence before matching this item to an application.
This plug connects into Delco 10Si and 12Si alternators and used to excite the alternator to charge correctly and works good on older vehicles, there is a diode to prevent voltage feedback.
Ready to plug into ’73 & up GM internally regulated alternator
Special diode prevents engine run and voltage feedback.
White wire length: 100CM; Red wire length: 20CM
No structured vehicle fitment data is available. Compare the listing with the vehicle and existing part before ordering.
Parameters, dimensions, material, fitment, and part numbers
Buying guidance
Quick decision
A alternators listing with source specifications kept visible for comparison.
Fit and size notes
- No structured vehicle fitment was supplied; verify the product details against your application.
Before you buy
- Compare the listing title, photos, package contents, and specifications with the part being replaced.
- Confirm vehicle compatibility and installation requirements before ordering.
Customer feedback
Ratings and written reviews
3.2 / 5
63 source ratings
Source: Amazon. Imported marketplace feedback is shown for product research and is not a review of a purchase made on this website.
Ray –
The delco remy wire pigtail with diode.The diode was in back to front.very disappointed to say the least
Rafael Chavez –
Después de la instalación el alternador no carga porque no hay voltaje en la terminal correspondiente al cable blanco. Después de revisar la instalación pude comprobar que el diodo esta defectuoso y muestra una alta resistencia. Por una cuarta parte del precio se puede comprar el conector y el diodo y hacerlo uno mismo.
george –
Diode is wired in backwards
mr g r marrone –
The diode is the wrong way around and the connectors are so loose it will require a little work but does the job
Charles Dorst –
Diode was wired in backwards and many reviews indicate the same problem. By the time you correct their problem you could have made your own for half the money. See the photo of diode. The thick silver band goes toward the alternator.
Connor McLean –
Very frustrating. The diode is needed to ensure voltage is not backfed to the ignition coil once the ignition switch turned off. Without the diode, the engine will not shut off. But, it has to be installed in the right direction! Had to snip it out and solder it in correctly.
Customer –
Works ss expected for my c15
DJ –
Its a nice cable assembly, but as others have stated the diode was wired in backward. Luckily i had another connector, so i just depinned the connector and swapped the white wire around.
Customer –
Perfect fit.old one fell apart.
Joseph Woods –
Part was ready to go diode was fixed the right way
Kyle foley –
Used it on a tractor and it worked very well