ACDelco ignition and start switch connector PT1964 (88860519) — GM direct-fit pigtail, gold-level durability

ACDelco Gold PT1964 (88860519) is an OEM-style ignition and start switch pigtail connector engineered to replace worn or damaged GM wiring harness connectors precisely and reliably.

When an ignition or start switch connector fails, symptoms can range from intermittent starts to non-start conditions and unreliable electrical connections. The ACDelco Gold PT1964 pigtail is built to match GM original-spec designs, offering correct fit, solid electrical contact, and durable protective materials. It serves as a direct replacement for the factory connector so technicians and DIYers can restore proper function without rewiring entire harnesses.

What does this connector replace and why choose ACDelco Gold?

This pigtail replaces the factory ignition and start switch connector used on compatible GM models, restoring the original plug-and-play connection. ACDelco Gold parts are produced to meet or exceed original equipment standards, giving you a reliable match in form and function.

• Direct-fit replacement for GM ignition/start switch harness connectors
• Meets GM original specifications for dimensions and terminals
• Gold-level ACDelco quality for enhanced durability and consistency

How durable is the PT1964 in real-world conditions?

This connector uses a protective outer covering and robust terminal materials to resist corrosion, vibration, and environmental exposure. It’s designed for the mechanical stresses of vehicle wiring areas, helping to prevent intermittent electrical faults over time.

• Protective outer jacket shields terminals from moisture and abrasion
• Corrosion-resistant contact surfaces for long-term conductivity
• Rugged housing to withstand vibration and connector mating cycles

How easy is installation and what tools are needed?

Installation is straightforward for anyone familiar with basic automotive repairs: remove the damaged pigtail, match pinouts, and crimp or solder the replacement wires as needed. The connector is designed for a straightforward, accurate fit so you can avoid complicated harness modifications.

• Plug-and-play shape aligns with factory sockets for quick swap-in
• Compatible with standard crimp tools or soldering for secure joins
• Reduces repair time versus replacing the entire harness assembly

Will this connector work on my specific vehicle model?

The PT1964 (88860519) fits a range of GM vehicles that use the same ignition/start switch connector design. Verify part numbers or consult vehicle-specific fitment guides to confirm compatibility before purchasing. If in doubt, compare your old connector to the product images and pin configuration.

• Cross-referenced to GM factory connector designs and part numbers
• Check vehicle fitment charts or OEM part number to ensure match
• Visual comparison of pin layout prevents installation surprises

Who is this for: The ACDelco Gold PT1964 is aimed at mechanics, fleet technicians, and knowledgeable DIYers who need a dependable, OEM-style replacement for a failing ignition or start switch connector on GM vehicles. It’s particularly useful when you want a cost-effective repair that preserves factory wiring and restores reliable electrical connections without extensive harness replacement.