GM Connectors | Delphi Connectors | GM Pigtails
GM & Delphi connectors
Part numbers, connector faces, and terminals for builders who wire their own.
This index is a practical reference for GM Delphi connectors, terminals, and seals — organized so you can match the right parts to the harness you're building. Cataloged by engine family: TPI · LT1 · LS1 · LS2 · LS3 · LS9.
Examples of Delphi sensors and related connectors, terminals & seals
Old style TPS connector
1984–1993
O2 connector, sensor end
IAT connector
1992 and up GM
ALDL Connector — all GM vehicles
1984–1995 Y-Body 1984–1995
4-pin to 3-pin coil conversion connector
Converts old style coil (4 pin) to 1996–99 Vortec style 3-pin coil
Coil connector for the LS1
1998
Ground lug 3 wire
Ground lug 2 wire
Battery power fusible link
Oil pressure switch connector
Heated O2 connector
New style IACV
All 1994–2001 F-Body cars
New style VSS — standard transmission vehicle
Connector data indexed by engine
- TPI
- LT1
- LS1
- LS2
- LS3
- LS9
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