ACDelco Gold door jamb switch D6088 OEM-fit mechanical plunger restores interior lights

ACDelco Gold D6088 (19021203) is a premium aftermarket door jamb switch that reliably controls your vehicle’s interior lights when doors open and close.

This ACDelco Gold door jamb switch is built as a high-quality replacement part engineered to match original equipment fit and function. Designed for straightforward installation and dependable performance, it restores proper interior lighting operation without requiring vehicle modifications. The D6088 model is intended for drivers and technicians seeking a durable, OEM-like alternative for vehicles that use a mechanical door switch system.

How does the D6088 restore interior light operation?

When the switch is installed in the door jamb, it completes or interrupts the circuit that powers the cabin lamps as the door opens and closes. A worn or faulty switch can leave lights stuck on, off, or flickering; replacing it with the D6088 returns normal behavior. The unit uses the same mechanical actuation method as most factory switches, so it works with existing wiring and lamps.

• Mechanical plunger designed for standard door-frame actuation
• Replaces failed or intermittent factory switches
• Compatible with standard dome/map light circuits

Will this ACDelco switch fit my vehicle and install easily?

The D6088 is produced to meet original-equipment fit, form, and function expectations for a wide range of applications. Many buyers report simple, tool-light installations using basic household tools; no special programming or additional components are typically required. Check the part number against your vehicle’s replacement part list or consult compatibility guides before purchasing.

• Engineered dimensions for direct-fit replacement
• Standard electrical terminals for quick connection
• Works with common door-jamb housings and retainers

What are the build quality and reliability features of this aftermarket part?

ACDelco Gold parts are manufactured to higher aftermarket standards, focusing on durable materials and consistent operation. The D6088 uses robust contact surfaces and a sturdy plunger assembly to resist wear from repeated door cycles. This attention to build quality reduces the chance of intermittent contacts and extends the service life compared with lower-grade aftermarket options.

• Premium contacts for reliable electrical switching
• Resilient plunger and housing to resist mechanical fatigue
• Quality-tested to align with ACDelco performance expectations

How can I verify compatibility and avoid common installation issues?

Confirm the ACDelco D6088 part number against your vehicle’s recommended replacement listings or consult a parts specialist. Before final installation, inspect the door-jamb opening and wiring for corrosion or damage that could affect operation. If your vehicle uses an electronic body control module that monitors door circuits, ensure the new switch produces the expected open/closed signals.

• Match ACDelco part number to your vehicle’s parts catalog
• Clean terminals and mounting area before installing
• Test switch operation with the door open/closed after fitting

Who is this for: The ACDelco Gold D6088 (19021203) door jamb switch is suited for vehicle owners, fleet managers, and professional technicians needing a reliable, premium aftermarket replacement for interior light control. It’s ideal when the original switch is failing, causing lighting issues, or when you require an OEM-like fit without sourcing dealer parts.