Product Overview
The Alpha Series A0026 plate provides positions for 1 standard watermelon light in the headliner of a compatible Peterbilt 389 interior. It has a mirror-finish stainless steel surface and includes two three-way switches for a dual-colour or dual-intensity lighting setup.
Specifications and configuration
- Part number: A0026.
- Position: headliner interior plate for a compatible Peterbilt 389 cab.
- Light layout: 1 standard watermelon light.
- Switch configuration: two included three-way switches.
- Plate material: stainless steel with a mirror finish.
Fitment and installation
Compare the original interior light mounting points, trim and space behind the plate before ordering. Match the selected light housings and mounting components to the plate. Follow the selected lights’ wiring requirements and confirm switch compatibility before connecting the three-way switches.
What is included?
- 1 mirror-finish stainless steel headliner plate.
- 2 three-way switches.
- 2 machine screws, 2-inch × 8-32.
- 2 clip plates in 11-gauge #8 stainless steel.
Lights and wiring are separate from the listed plate, switches and mounting hardware.
Warranty
6-month manufacturer warranty.
Frequently Asked Questions
Where does A0026 mount?
It is a headliner plate for a compatible Peterbilt 389 interior. Compare the factory mounting points, trim and rear clearance before ordering.
How many lights does the plate hold?
The plate provides positions for 1 standard watermelon light. Confirm the chosen lights’ mounting requirements and housing clearance.
How many switches are included?
This version includes two three-way switches. The switches are intended for dual-colour or dual-intensity light functions; connect them according to the selected lights’ wiring requirements.
What mounting hardware is included?
The package lists 2 2-inch × 8-32 machine screws and 2 clip plates in 11-gauge #8 stainless steel. It also includes the plate and its listed switches.
Are the lights included?
No complete lights or wiring are included in the listed plate package. Choose those components separately for your installation.
Is a single-switch version available?
Yes. The single-switch headliner plate is a separate product. Use the linked alternative below and check its light layout and supplied hardware.
Lights and related options at BTS
Compare Glass Is Class Gen 2 watermelon lights. Match the selected light’s mounting arrangement, housing clearance and wiring requirements to the plate or kit before ordering. This shopping link does not establish Gen 1 and Gen 2 component interchangeability.

















