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Split-Side Double Switch Plate for Two-Position Custom Interior Control Panels
The Granatelli GMS789464D is a double switch plate that accepts two .635-inch barrel-style switch buttons, one positioned on the left side and one on the right side of the panel. Unlike side-by-side twin configurations, the split layout provides wider spacing between switches, reducing the chance of accidentally actuating both simultaneously. It is a universal accessory for custom interior switch panels, roll cage panels, or any housing that accepts .635-inch barrel switches, including the Granatelli 10-inch D-shaped racing steering wheel switch panel. Switches and the steering wheel are sold separately.
Key Features
- Split-Side Dual Layout: One .635-inch barrel switch button on each side of the plate for wider spacing than side-by-side twin configurations
- Reduces Mis-Actuation Risk: Greater button separation decreases the chance of inadvertently pressing both switches at the same time
- Universal Fit: Compatible with any switch housing or panel that accepts .635-inch barrel-format switches
- Race-Ready Construction: Built to Granatelli's competition standards for reliable performance in demanding environments
Specifications
| Detail | Value |
|---|---|
| Part Number | GMS789464D |
| Brand | Granatelli Motor Sports |
| Switch Button Diameter | .635 in (barrel-style) |
| Button Count | 2 (one per side) |
| Layout | Double (split-side) |
| Fit | Universal |
| UPC | N/A |
What's Included
- 1x switch plate
About Granatelli Motor Sports
Granatelli Motor Sports is a California-based performance parts manufacturer with roots in professional motorsport. The company produces ignition systems, interior accessories, and racing components used across drag racing, road racing, and high-performance street builds.
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Frequently Asked Questions
What is the GMS789464D?This is a Granatelli Motor Sports double switch plate that accepts two .635-inch barrel-style push buttons, one on the left side and one on the right side of the panel. The split-side layout provides wider button spacing than side-by-side twin plates, reducing the chance of accidental simultaneous actuation.
What is the difference between this and the twin switch plates?This plate positions one button on each side of the panel (split-side layout) for greater separation between switches. The twin plates (GMS789465T standard face, GMS789464T mushroom) place two buttons side by side in the center. The single (GMS789464S) accepts one button with 4-position orientation. Choose based on spacing preference and switch count needed.
Is this compatible with the Granatelli 10-inch D-shaped steering wheel?Yes. This plate is designed to be compatible with Granatelli's 10-inch D-shaped racing steering wheel switch panel and any housing that accepts .635-inch barrel-format switches. The steering wheel and switch buttons are sold separately.
What switch buttons are compatible with this plate?This plate accepts .635-inch diameter barrel-style push buttons. Verify your intended switches match this diameter and barrel mounting style before ordering. Switches are sold separately and are not included.
Are switch buttons included?No. This is the mounting plate only. You will need to source compatible .635-inch barrel-style switch buttons to complete the installation.
Can this be used in a street car?Yes. This is a universal accessory and can be installed in any vehicle with a compatible switch panel housing, not exclusive to competition use.
How do I wire the switches after installation?Wire each switch button to the intended circuit per the switch manufacturer's wiring diagram. Ensure each circuit is properly fused. For safety-critical applications such as kill switches or fire suppression, consult a professional installer familiar with competition vehicle wiring standards.
What material is the plate made from?Refer to Granatelli's product documentation for specific material information. The plate is built to Granatelli's race-use standards for durability in demanding competition and street environments.
Installation Instructions
- Verify that your switch housing accepts .635-inch barrel switch buttons and that the plate dimensions match the panel cutout.
- Insert the plate into the panel housing, aligning the button holes with the housing cutouts.
- Seat the .635-inch barrel switch buttons through the plate holes and secure per the switch manufacturer's retention method (clip, nut, or snap-fit).
- Wire each switch button to the intended circuit per the switch manufacturer's wiring diagram; ensure proper fusing on each circuit.
- Confirm all switches actuate freely before securing the panel in the vehicle.
Granatelli Motor Sports
Granatelli Motor Sports carries the legacy of the legendary Granatelli racing family into the performance aftermarket, producing ignition systems, performance filters, and engine upgrades that carry the heritage of a family that won the Indianapolis 500 and competed at the highest levels of American motorsport for decades. The brand is particularly known for its high-performance spiral-wound ignition wires that dramatically reduce radio frequency interference and improve spark delivery in high-compression and modified engine applications. Granatelli products cover a wide range of domestic V8 platforms including GM LS and small-block, Ford Modular, and Chrysler Hemi engines, as well as import performance applications where quality ignition components make a measurable difference in power delivery and consistency. The combination of racing heritage and practical performance engineering makes Granatelli Motor Sports a respected name among serious enthusiasts. Popular Upgrades Granatell...
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