[83GMCK2500]

Originally Posted by DeadheadNM

Appreciate the pic - I was hoping that the local GM parts folks might have a part # for an aux battery harness to make this a plug and play project but they did not. Adding the OEM aux battery equipment was relatively straightforward in my 1972 4wds - things got complicated over the years at GM!

Your Parts guy needs to go back to school...took me, under a minute to find this in the Electronic Parts Catalog...way more time to type it up.

#1 - 15354169 - Cable, Aux Bat Pos
#2 - 12338130 - Nut, Hex 5/16-18X.25 286M POR
#3 - 19115561 - Bolt, Hex Hd, 3/8-16X13/32, 1/4 THD, 1 5/32 TOTAL LG, 51/64 OD
#4 - 00136857 - Washer, External Tooth LK 7/16
#5 - 12190685 - Cable, Aux Bat Neg
#6 - Same as #4
#7 - Same as #3
#8 - 12135196 - Relay, Aux Bat
#9 - 12160765 - Cover, Bat Pos Cbl J/Blk

#10 - See below...

#11 - 15551605 - Bolt, Hwh Tap, M6.3x1.27x20, 18.5OD, TR PT1018, AL
#12 - 11516079 - Nut, Prevailing Torque Type W/WA Insert (M6x1 THD8.8 THK)
#13 - 88862249 - Connector, Pwr Dist Blk (ACDelco #PT2330)




#10 is a pistol, it's the cable that connects the relay to the battery. It is very RPO dependant, depending on what options you have this cable varies in length and gauge.