3-Pin 2.5mm Delphi Weather Pack Fuel Injector Connector 12020827 12020829 DJ3031Y-2.5 Male Female

$13.56 USD

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3-Pin 2.5mm Delphi Weather Pack Fuel Injector Connector — 12020827 / 12020829 / DJ3031Y-2.5

OEM-compatible Delphi Weather Pack 3-pin 2.5mm connector pair for automotive fuel injector wiring harnesses. The Weather Pack series is the industry standard for sealed engine bay connections on GM, Delphi, and compatible platforms — trusted by OEM manufacturers and professional harness builders worldwide.

Specifications

Parameter	Value
Pin Count	3
Pitch	2.5 mm
OEM Part Numbers	12020827 (female) / 12020829 (male) / DJ3031Y-2.5
Connector Series	Delphi Weather Pack
Housing Material	PA66 (Nylon 66)
Sealing	Silicone wire seal + cavity plug
Waterproof Rating	IP67
Operating Temperature	-40°C to +125°C
Gender	Male (12020829) + Female (12020827)
Certification	CE

Compatible Vehicles & Applications

GM / Chevrolet / GMC — fuel injector harnesses (LS1, LS2, LS3, LT1, Vortec)
Pontiac / Buick / Cadillac — engine management sub-harnesses
Delphi-supplied OEM harnesses across multiple platforms
Aftermarket EFI systems (Holley, MegaSquirt, AEM) using Weather Pack connectors
Custom engine swap harness builds requiring sealed injector connections

Why Choose This Connector?

✅ Genuine Delphi Weather Pack geometry — OEM-accurate mating dimensions
✅ Silicone wire seal — superior heat and chemical resistance vs rubber
✅ IP67 rated — fully sealed against fuel, oil, and coolant splash
✅ Industry-standard connector — compatible with all Weather Pack tooling and terminals
✅ Available as male/female pair — complete set for harness repair or custom build

Application Scenarios

Fuel injector connector replacement on LS-swapped vehicles (LS1/LS2/LS3)
Injector harness repair on Chevrolet Silverado / GMC Sierra Vortec engines
Custom EFI harness build using Holley HP EFI or MegaSquirt ECU
Motorsport wiring harness construction requiring IP67 injector connections

FAQ

Q: What is the difference between 12020827 and 12020829?
A: 12020827 is the female connector (socket/receptacle side, connects to the injector body). 12020829 is the male connector (plug side, connects to the wiring harness). They mate together.

Q: What terminals are compatible with Delphi Weather Pack 2.5mm?
A: Delphi Weather Pack 2.5mm series uses Delphi 12010973 (female terminal) and 12010974 (male terminal) for 0.5–1.0mm² (AWG 20–18) wire.

Q: Can I use this connector for non-injector applications?
A: Yes. The Weather Pack 3-pin 2.5mm connector is used for any 3-wire sealed connection in engine bay environments — sensors, actuators, solenoids, etc.