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Single Barrel Switch Plate with 4-Position Orientation for Custom Race Panels
The Granatelli GMS789464S is a single switch plate that accepts one .635-inch barrel-style switch button in a 4-position orientation. The single button layout is ideal for dedicated single-function assignments such as ignition kill, launch control activation, boost control toggle, or pit limiter. The 4-position compatibility allows the installer to orient the switch label, indicator light, or actuation direction as needed relative to the panel. Compatible with the Granatelli 10-inch D-shaped racing steering wheel switch panel and any housing that accepts .635-inch barrel switches. The switch and steering wheel are sold separately.
Key Features
- Single Button Layout: Accepts one .635-inch barrel-style switch button for dedicated single-function panel installations
- 4-Position Orientation: The switch button can be installed in four rotational orientations (0, 90, 180, 270 degrees) to align directional markings or illuminated faces as needed
- Universal Fit: Compatible with any switch housing or panel that accepts .635-inch barrel-format switches
- Race-Ready Construction: Built to Granatelli's competition-use standards for reliable performance in demanding environments
Specifications
| Detail | Value |
|---|---|
| Part Number | GMS789464S |
| Brand | Granatelli Motor Sports |
| Switch Button Diameter | .635 in (barrel-style) |
| Button Count | 1 (single) |
| Switch Positions | 4-position compatible |
| 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 GMS789464S?This is a Granatelli Motor Sports single switch plate that accepts one .635-inch barrel-style push button switch in a 4-position orientation. It is a universal accessory for dedicated single-function switch panel installations in racing or performance street vehicles with compatible switch housings.
What does 4-position compatible mean?4-position compatibility means the switch button can be installed in four rotational orientations (0, 90, 180, or 270 degrees) so that any directional markings, indicator lights, or ON/OFF legends on the switch face read correctly from the driver's view. This is useful when the switch has a labeled or illuminated face that needs a specific orientation.
What single-function applications is this best suited for?This plate is well suited for any dedicated single function: engine kill, launch control activation, boost control toggle, pit limiter, fire suppression, or any other one-switch assignment on a custom race or performance panel. It can also fill an unused panel slot with a labeled, functional switch.
What is the difference between this and the other Granatelli switch plates?This plate accepts a single button with 4-position orientation. The twin plates (GMS789465T standard face, GMS789464T mushroom) each accept two side-by-side buttons. The double (GMS789464D) accepts two buttons with one per side. Choose this plate when only one switch function is needed in a given panel location.
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 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 hole with the housing cutout.
- Seat the .635-inch barrel switch button through the plate hole; rotate to the desired 4-position orientation before securing the retention nut or clip per the switch manufacturer's instructions.
- Wire the switch button to the intended circuit per the switch manufacturer's wiring diagram; ensure proper fusing.
- Confirm the switch actuates freely and returns to the off position correctly 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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