Peterbilt 359 Toggle Extensions

Frequently Asked Questions About Peterbilt 359 Toggle Extensions

What are toggle extensions and why would I need them?

Toggle extensions attach to your existing dash or panel toggle switches to lengthen them, making them easier to grip and flip. Many Peterbilt 359 owners add them for improved comfort and control, especially when wearing gloves or when factory switches sit low and are hard to reach.

Will these fit the toggle switches already in my Peterbilt 359?

Toggle extensions are generally designed to fit standard-size toggle switch levers commonly found in Peterbilt 359 dash and panel setups. That said, switch sizes and thread patterns can vary by model year and prior modifications, so it's a good idea to compare the extension's inner diameter and thread pitch against your current switch before ordering.

What materials and finishes are available?

These extensions are typically available in chrome-plated or polished metal, and sometimes anodized aluminum. Chrome and polished finishes are popular for matching other chromed interior accents, while some customers prefer a brushed or matte look for a more subdued appearance. Choose a finish that matches the rest of your cab hardware for a consistent look.

How do I install a toggle extension?

Installation is usually straightforward: you thread or slide the extension onto the existing toggle lever and secure it, often with a small set screw or a press-fit design. No wiring or electrical work is involved since you're only extending the physical lever, not altering the switch mechanism itself. Always double check the switch is in a safe position before installing to avoid accidentally engaging a function.

Will adding a toggle extension affect the switch's function or safety rating?

Toggle extensions are cosmetic and ergonomic accessories that extend the lever arm; they don't alter the internal switch mechanism or its electrical rating. However, because they change the leverage and reach of the switch, take care that the added length doesn't cause accidental contact with other switches, gauges, or trim in tight dash layouts.