1 Hole Gauge Panel, for 2-5/8

OVERVIEW

When you''re pushing your air-cooled engine to the limit, whether it''s a high-compression street engine or a turbocharged sand rail, keeping a close eye on your vitals isn''t just a good ideait''s a necessity. The AutoMeter 3231 1-Hole Gauge Panel is the professional solution for mounting a single 2-5/8 inch gauge in your Volkswagen. While the standard 2-1/16 inch gauges are common, many veteran racers and builders prefer the larger 2-5/8 inch format because it offers superior visibility and much higher resolution for critical readings like oil pressure or cylinder head temperature. This heavy-duty steel panel provides a rigid, vibration-resistant mounting point that ensures your expensive monitoring equipment stays exactly where you need it, even when you''re bouncing through the whoops or launching off the line.

At Appletree Automotive, we know that the "details make the build," and a floppy or poorly mounted gauge is a recipe for disaster. This AutoMeter panel features a sleek, semi-gloss black finish that blends seamlessly into any classic VW interior, from a restored Oval Window Beetle to a rugged Baja Bug. The steel construction is far superior to cheap plastic alternatives that can warp or crack under the heat of a summer day. Designed specifically for the iconic AutoMeter and Auto Gage series, this panel allows for a clean, under-dash installation or a custom surface mount on your center console or sand rail dashboard. It''s a simple, effective, and "period-correct" looking upgrade that brings modern monitoring accuracy to your vintage machine without cluttering up the aesthetic of your cockpit.

FITMENT

This universal gauge panel is a favorite for the following air-cooled applications:

• Volkswagen Beetle: All years and models (1946-1979).
• Volkswagen Karmann Ghia: All years (1956-1974).
• Volkswagen Bus / Transporter: Split Window and Bay Window models.
• Volkswagen Type 3: Squareback, Fastback, and Notchback.
• Volkswagen Thing (Type 181): All years.
• Dune Buggies & Sand Rails: Perfect for fiberglass dash mounting or tube chassis tabs.
• Baja Bugs: Ideal for high-vibration off-road environments.
• Custom Applications: Any vehicle requiring a 2-5/8 inch gauge mount.

SPECS

• Brand: AutoMeter.
• Part Number: 3231.
• Gauge Opening: 1-Hole.
• Gauge Size Compatibility: 2-5/8 Inch (66.7mm).
• Material: High-strength stamped steel.
• Finish: Durable black powder-coated/painted finish.
• Mounting Style: Under-dash or surface mount flange.
• Height: Approximately 3-1/4 inches.
• Width: Approximately 3-1/4 inches.
• Compatibility: Works with all AutoMeter and Auto Gage 2-5/8 inch mechanical and electrical gauges.

PRO TIPS

1. Grounding in Fiberglass Bodies

If you are mounting this panel in a Manx-style dune buggy or any vehicle with a fiberglass body, remember that the panel itself will not be grounded. Most 2-5/8 inch gauges require a solid chassis ground for the internal lighting or the sending unit to function correctly. I always recommend running a dedicated 14-gauge ground wire from one of the panel mounting bolts directly to the chassis. This prevents "floating grounds" which can cause your needles to jump or give inaccurate readings when you turn your headlights on. Don''t rely on the gauge mounting bracket alone to provide a ground through a non-conductive dash.

2. Optimize Your Line of Sight

The beauty of the 2-5/8 inch gauge is its readability, but placement is key. When installing this under the dash of a Beetle, try to mount it slightly to the right of the steering column rather than directly centered. This ensures that the steering wheel rim doesn''t block your view of the needle at critical moments. Because this panel is steel, you can slightly "tweak" or bend the mounting flange if necessary to angle the gauge face toward the driver''s seat. Just a few degrees of tilt can make a massive difference in how quickly you can register a drop in oil pressure while you''re keeping your eyes on the road.

3. Managing Heavy Mechanical Lines

If you''re using this panel for a mechanical oil pressure gauge, you''ll likely be running a copper or nylon line from the engine block to the dash. Because 2-5/8 inch gauges are larger and heavier than their smaller counterparts, there is more leverage on the panel. Ensure that your pressure line has a "service loop" (a small coil) behind the dash. This prevents engine vibration from pulling on the gauge and potentially cracking the mounting panel or the gauge fitting. Also, use a rubber grommet whenever passing lines through the firewall to prevent the metal edges from chafing your lines or wiring harnesses over time.