Autometer 2-1/16 Ultra-Lite O

OVERVIEW

Monitoring your engine''s oil pressure is the single most important task for any air-cooled Volkswagen enthusiast, and the AutoMeter Ultra-Lite 2-1/16-inch Electric Oil Pressure Gauge (ATM4347) provides the precision and reliability required to protect your investment. Designed with a lightweight aluminum construction and the iconic silver face that has become a staple in the racing world, this gauge offers a perfect blend of high-performance aesthetics and critical engine data. In the world of air-cooled engines, where oil serves as both a lubricant and a primary cooling agent, knowing your exact PSI at a glance can be the difference between a successful weekend at the dunes and a catastrophic engine failure on the trail. The Ultra-Lite series is engineered to withstand the vibrations and harsh environments typical of Baja bugs and sand rails, ensuring that your readings remain steady even when the terrain gets rough.

The ATM4347 features AutoMeter''s legendary air-core meter movement, providing the accuracy of a mechanical gauge with the convenience and safety of an electric installation. By utilizing a remote-mounted sending unit, you eliminate the need to run high-pressure oil lines directly into the passenger compartment, significantly reducing the risk of messy leaks or cockpit hazards. This gauge provides a full 90-degree sweep for easy readability and includes perimeter incandescent lighting that ensures clear visibility during night drives or late-night sessions at the track. Whether you are building a show-quality Cal-Look Beetle or a rugged off-road rail, the AutoMeter Ultra-Lite series delivers a professional, uniform look across your dashboard while providing the peace of mind that comes from knowing exactly what is happening inside your case.

FITMENT

This universal 2-1/16-inch gauge is designed for 12-volt electrical systems and is a premier choice for the following Volkswagen and off-road applications:

• Volkswagen Type 1 Beetle: 1950 through 1979 (All models)
• Volkswagen Type 2 Bus / Transporter: 1950 through 1979 (Including Kombi and Microbus)
• Volkswagen Type 3 (Fastback, Squareback, Notchback): 1961 through 1973
• Volkswagen Karmann Ghia: 1955 through 1974
• Volkswagen Type 181 Thing: 1973 through 1975
• Custom Off-Road Builds: Sand Rails, Dune Buggies, and Manx-style bodies
• Baja Bugs: Ideal for high-vibration off-road environments
• Performance Engines: Compatible with 1600cc, 1776cc, 1835cc, 1914cc, 2110cc, and larger stroker builds

SPECS

• Product Model: AutoMeter Ultra-Lite ATM4347
• Gauge Type: Oil Pressure (Electric)
• Face Color: Silver with Black Numerals
• Bezel Material: Brushed Aluminum
• Pointer Color: High-Contrast Red
• Size: 2-1/16 Inch (52.4mm) Diameter
• Operating Range: 0 to 100 PSI
• Sweep: 90-Degree Short Sweep
• Lighting: Perimeter Incandescent (Includes Red and Green Bulb Covers)
• Voltage: Compatible with 12V Systems
• Sending Unit: Includes 1/8-inch NPT Pressure Sender
• Mounting Hardware: Includes U-bracket and nuts for secure installation

PRO TIPS

1. Thread Compatibility and Adapters

Most air-cooled VW engine cases are tapped for M10x1.0 metric threads at the oil pressure switch location. Because the AutoMeter sender uses a 1/8-inch NPT thread, you will need a brass adapter or a "T-fitting" to install this properly. We highly recommend using a T-fitting so you can retain your stock oil pressure "idiot light" on the dash while also running the precision AutoMeter gauge. This provides a secondary fail-safe; if the light flickers, you can immediately check the gauge for the exact PSI reading. Never over-tighten the sender into the adapter, as brass threads can shear easily under excessive torque.

2. Ensure a Solid Ground Connection

Electrical gauges rely heavily on a consistent ground to provide accurate readings. Since the oil pressure sender completes the electrical circuit through the engine case, ensure that your engine-to-chassis ground strap is clean and tight. If you are using Teflon tape on the sender threads to prevent leaks, be careful not to wrap the entire thread surface. If the tape completely insulates the sender from the engine block, the gauge will not function or will provide erratic, "jumping" readings. A small amount of thread sealant on the upper threads is usually sufficient to maintain both a seal and a good electrical ground.

3. Wiring for Longevity and Cleanliness

When routing the signal wire from the engine bay to the dashboard, always use a grommet when passing through the firewall to prevent the wire insulation from chafing against the metal. In a Volkswagen, the path from the engine to the dash is long, so it is wise to secure the wire every 12 to 18 inches using zip ties or loom. Keep the signal wire away from high-voltage spark plug wires or the ignition coil, as electromagnetic interference (EMI) can cause "noise" in the electrical signal, leading to inaccurate pressure readings. For the best results, use a dedicated 12V switched power source so the gauge only draws power when the ignition is in the ''on'' position.