Billet Dash Knob, 5mm Thread, Each

Elevate Your Interior with Precision-Machined Resto-Custom Styling

When it comes to the interior of a classic air-cooled Volkswagen, the details are what separate a standard restoration from a show-stopping masterpiece. This EMPI Billet Dash Knob is the ultimate solution for enthusiasts who want to maintain the iconic aesthetic of their vintage dashboard while upgrading to a material that offers superior tactile feel and longevity. Unlike the original plastic knobs that often crack, fade, or strip their threads over decades of use, these units are precision CNC-machined from high-grade 6061 billet aluminum. They perfectly replicate the classic profile of the factory original parts but provide a modern, high-tech finish that catches the light and adds a premium weight to your switchgear. Whether you are building a period-correct Cal-Looker, a rugged Baja Bug, or a sleek street cruiser, these billet knobs offer a clean, sophisticated look that bridges the gap between heritage design and modern engineering.

The "Resto-Custom" philosophy is all about subtle enhancements that improve the driving experience without losing the soul of the vehicle. By replacing your weathered or missing dash knobs with these billet versions, you are investing in a component that will never degrade due to UV exposure or temperature fluctuations. The 5mm internal threading is tapped with high precision to ensure a snug, wobble-free fit on your headlight switch, wiper switch, or emergency flasher. Because these are sold individually, you have the flexibility to replace just one damaged unit or commit to a full interior overhaul for a cohesive, professional appearance. At Appletree Automotive, we know that the "touch points" of your VW are where you connect with your machine, and these billet knobs provide a solid, mechanical feedback that plastic simply cannot match. It''s a small upgrade that makes a massive impact every time you reach for the dash.

Extensive Fitment for Air-Cooled Classics

This 5mm threaded billet dash knob is designed to fit a wide variety of Volkswagen applications that utilize the standard M5 thread pitch on their dashboard switches. Please verify your switch shaft size before ordering, as some early models may utilize a 4mm thread.

• Volkswagen Beetle (Standard & Super): 1968 - 1979
• Volkswagen Karmann Ghia: 1968 - 1974
• Volkswagen Bus (Type 2 / Transporter): 1968 - 1979
• Volkswagen Type 3 (Squareback, Fastback, Notchback): 1968 - 1973
• Volkswagen Thing (Type 181): 1973 - 1975
• Custom Dune Buggies, Sand Rails, and Kit Cars: Utilizing VW-style 5mm threaded switches.

Technical Specifications & Material Details

Engineering excellence is at the heart of every EMPI billet component. These knobs are built to withstand the rigors of daily driving and the harsh environments of off-road use.

• Material: Aircraft-grade 6061-T6 Billet Aluminum.
• Thread Size: 5mm (M5 x 0.8 internal threading).
• Manufacturing Process: 100% CNC-Machined for exact tolerances.
• Finish: Bright machined aluminum (can be polished to a mirror shine).
• Design Style: Classic VW Round profile with textured grip edges.
• Part Number: 11-4535-0 (EMPI).
• Quantity: Sold individually (Each).

Pro Tips from the Appletree Specialist Team

Pro Tip 1: Confirm Your Thread Pitch Before Installation

In the world of air-cooled VWs, 1967 and 1968 were "transition years" where many parts changed sizes. While most late-model switches use this 5mm thread, some early switches or aftermarket replacements might use a 4mm thread. Before you attempt to force the knob on, simply test-thread it by hand. If you feel resistance within the first two turns, stop immediately. Never use pliers to force a billet knob onto a switch shaft, as you risk stripping the aluminum threads or snapping the internal contact of your expensive headlight switch. If it doesn''t spin on smoothly by hand, double-check your switch shaft diameter with a caliper.

Pro Tip 2: Prevent Electrolytic Corrosion with Anti-Seize

When you thread a billet aluminum knob onto a steel switch shaft, you are combining two different metals. Over time, moisture in the air can cause "galvanic corrosion," which may cause the knob to seize onto the shaft. To ensure you can easily remove the knob in the future for dashboard maintenance, apply a tiny, pinhead-sized amount of silver anti-seize or a drop of light machine oil to the threads. This creates a barrier that prevents the metals from bonding. This is especially important for beach buggies or cars located in humid coastal climates where salt air can accelerate oxidation between aluminum and steel components.

Pro Tip 3: Protect the Finish During Tightening

While these knobs are designed to be finger-tight, some enthusiasts prefer a very snug fit to prevent vibrations. If you feel the need to use a tool to give it that final fraction of a turn, DO NOT use serrated pliers directly on the billet surface, as it will mar the beautiful machined finish. Instead, wrap the knob in a thick piece of rubber (like a section of an old inner tube) or a heavy microfiber cloth before applying gentle pressure with a pair of soft-jaw pliers. This ensures your resto-custom look remains flawless and scratch-free for the next car show or club meet.