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Old 04-17-2026, 10:53 PM   #1
ZLRob
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Obscure retainers for engine wiring harness

I'm sure I'm not the only one who has run into issues here but I have searched high and low for retainers and clips that broke during my engine rehaul. There were a few different ones that broke on me. Two being the ones for my radiator fan harness and main clip that ties onto the shroud. There was also one that broke on my valve cover which was a zip tied fir tree which holds the harness in place there. Hit up the dealer and of course they hit you with the "Oh GM sells it as an assembly so if you break it you need to buy the assembly." Line of crap.


Anyways, for anyone who ever runs into this issue, I found the suitable replacers and the company who makes them. These obscure retainers and clips are made by HellermanTyton and the retainers are obtainable via Digikey and Amazon.




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Part numbers are as follows:
155-30702 Connector retainer clip w/ fir tree attachment




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157-00150 Harness cable tie clip w/ fir tree attachment




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The only one I've had trouble finding a one for one replacement is shockingly the most simple one of the bunch which is the umbrella fir tree stanchion with the zip tie directly above it. That being said, however, they are obtainable on Amazon buying a variety pack of automotive fasteners, usually in the 60- 80 pack range. Needless to say I have no part number for this one, but here is a visual of what it looks like.




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Bonus: these are the clips for the two front supercharger harness zip ties that fasten to the top of the lid bolt/ stud combo fasteners


157-00233


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I hope this helps someone!
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2017 Red Hot ZL1 A10 - Apex ARC-8's, 305/ 325 PS4's, DSX 9.06 12% lower, Griptec OE upper, NGK HR7 Ruthenium plugs, Nostrum 25+ injectors, XDI Goliath HPFP, Katech dual in tank LPFP, Katech oil pump, LME tensioner, DOD delete, LT1 big fuel cam, Jokerz ported blower, MPI lid, GMS hood extractor bracket, Granatelli SS plug wires, Cordes LTR reservoir, DMS T-stat housing, 186* LS3 T-stat, Borla X pipe, Black Widow Angry Housewife/ Corsa NPP mufflers, BMR engine mounts, Banks iDash, Lithium Battery, AEM X- Series, HP Tuners, E85, 16.5 psi
758 HP/ 804 TQ


Last edited by ZLRob; 04-17-2026 at 11:17 PM.
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Old 04-18-2026, 06:27 AM   #2
Joshinator99
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Great info! Thanks!
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Old 04-19-2026, 10:56 PM   #3
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THANK YOU!!!!
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Old 04-20-2026, 05:39 AM   #4
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Heck yeah! Now I can get rid of about 800 zip-ties !!! Great Info !
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Old 04-20-2026, 09:15 AM   #5
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GREAT idea!!! Those are a PITA to find, so thanks for sharing!!!
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Old 04-20-2026, 10:53 AM   #6
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I'm not here for a long time. Just a good time gents.
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2017 Red Hot ZL1 A10 - Apex ARC-8's, 305/ 325 PS4's, DSX 9.06 12% lower, Griptec OE upper, NGK HR7 Ruthenium plugs, Nostrum 25+ injectors, XDI Goliath HPFP, Katech dual in tank LPFP, Katech oil pump, LME tensioner, DOD delete, LT1 big fuel cam, Jokerz ported blower, MPI lid, GMS hood extractor bracket, Granatelli SS plug wires, Cordes LTR reservoir, DMS T-stat housing, 186* LS3 T-stat, Borla X pipe, Black Widow Angry Housewife/ Corsa NPP mufflers, BMR engine mounts, Banks iDash, Lithium Battery, AEM X- Series, HP Tuners, E85, 16.5 psi
758 HP/ 804 TQ

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