8-Pin 1.5mm Waterproof Alternator & Coil Pack Connector for GM / Buick / Chevrolet LS1 / LS6 – Delphi 12047931 / 12047937

Direct OEM-specification replacement for the GM / Delphi 8-way 1.5mm pitch waterproof connector pair, cross-referencing part numbers 12047931 (male) and 12047937 (female). Used in GM LS1 and LS6 engines for alternator and ignition coil pack wiring harness connections across Buick, Chevrolet, and Pontiac vehicles.

Key Specifications

GM LS1 / LS6 OEM Fitment: Delphi 12047931 / 12047937

The Delphi 12047931 / 12047937 connector pair is used in GM LS1 (5.7L V8) and LS6 (5.7L V8) engines for alternator and ignition coil pack harness connections. Found in Chevrolet Corvette C5, Camaro Z28, and Buick vehicles equipped with LS-series engines. A popular repair and performance upgrade item for LS engine swaps and restorations.

Common Vehicle Applications

• Chevrolet Corvette C5 (LS1 / LS6) – alternator and coil pack harness
• Chevrolet Camaro Z28 (LS1) – ignition coil pack wiring
• Buick vehicles (LS-series) – alternator harness connections
• LS engine swap builds – alternator and coil pack harness repair

Package Contents

1 Set: 1 × 8-Way Male (12047931) + 1 × 8-Way Female (12047937) with wire leads, terminal inserts, and wire seals pre-installed.

Frequently Asked Questions

Q: Is this connector compatible with LS engine swaps?
A: Yes. The Delphi 12047931 / 12047937 is the OEM connector for LS1 and LS6 alternator and coil pack harness connections, making it a popular repair item for LS engine swap builds.

Q: What causes coil pack connector failure on LS1 and LS6 engines?
A: Common failure modes include terminal overheating from high ignition current, terminal corrosion from engine bay moisture, and wire chafing from vibration. A faulty coil pack connector can cause misfires and engine management warning lights.