Autometer 2-5/8 Ultra-Lite Oi

OVERVIEW

In the world of air-cooled Volkswagens, oil pressure isn''t just a number; it is the lifeblood of your engine. The AutoMeter 2-5/8 inch Ultra-Lite Oil Pressure Gauge (ATM4421) is the gold standard for drivers who demand precision and a classic, high-performance aesthetic. Featuring a stunning brushed aluminum dial and a matching silver anodized bezel, this gauge provides a professional look that complements both vintage interiors and modern race-inspired cockpits. Unlike smaller gauges that can be difficult to read at a glance, the larger 2-5/8 inch diameter ensures that you can monitor your PSI levels instantly, whether you are cruising the boulevard in a Type 1 Beetle or pushing the limits of a high-compression sand rail in the dunes. The Ultra-Lite series has been a staple in the racing community for decades, and for good reasonit offers a lightweight construction without sacrificing the rugged durability required for the vibrations and harsh environments inherent to air-cooled applications.

This mechanical oil pressure gauge operates with a direct-linkage design, providing real-time, lightning-fast response times that electrical gauges often struggle to match. By utilizing a 0-100 PSI sweep, it is perfectly calibrated for everything from a stock 1600cc dual-port to a heavily modified stroker engine with high-volume oil pumps. The kit comes complete with a 10-foot nylon tubing assembly and the necessary NPT fittings, making it a comprehensive solution for your monitoring needs. When you install an AutoMeter gauge from Appletree Automotive, you aren''t just adding a decoration to your dashboard; you are installing an insurance policy for your engine. Knowing exactly when your pressure drops due to heat soak or oil thinning can be the difference between a simple oil change and a complete case rebuild. Trust in the silver-face Ultra-Lite series to keep your Volkswagen running cool and pressurized for years to come.

FITMENT

This universal 2-5/8 inch gauge is designed for custom mounting in various air-cooled and water-cooled applications, including but not limited to:

• Volkswagen Beetle: All years and models (Standard and Super Beetle).
• Volkswagen Karmann Ghia: All years and models.
• Volkswagen Type 2 Bus: Split Window, Bay Window, and Vanagon.
• Volkswagen Type 3: Squareback, Fastback, and Notchback.
• Volkswagen Thing (Type 181): All models.
• Dune Buggies & Sand Rails: Meyer''s Manx, Berrien, and custom tube chassis.
• Custom Applications: Any vehicle requiring a 2-5/8 inch (66.7mm) mounting hole and a 1/8 inch NPT or 1/4 inch NPT oil pressure port.

SPECS

• Brand: AutoMeter
• Series: Ultra-Lite
• Model Number: 4421
• Gauge Type: Mechanical Oil Pressure
• Size: 2-5/8 Inches (66.7mm)
• Range: 0 - 100 PSI
• Dial Color: Brushed Aluminum (Silver)
• Bezel Color: Silver Anodized
• Pointer Color: Orange Hi-Vis
• Lighting: Incandescent (Around the dial)
• Tubing: 10 ft. Nylon Tubing Kit included
• Fittings: 1/8 inch NPT male fittings with 1/4 inch NPT adapter included
• Movement: Gear-driven Bourdon tube mechanism

PRO TIPS

Tip 1: Consider Upgrading to Copper or Braided Lines

While the included 10-foot nylon tubing is functional for many basic street builds, we highly recommend upgrading to a copper line kit or a stainless steel braided hose for maximum safety. In an air-cooled VW, the oil line often runs from the engine case, through the firewall, and under the chassis or through the interior to the dash. Nylon can become brittle over time when exposed to the extreme heat of a Volkswagen engine bay. A copper or braided line provides superior resistance to kinks and melting, ensuring that high-pressure oil stays inside the line and not on your carpet or hot engine components.

Tip 2: Proper Port Selection and Adapters

For the most accurate reading on a VW Type 1 engine, you should tap into the oil pressure relief gallery or use a "V" or "T" adapter at the stock oil pressure sending unit location (usually found near the distributor). This allows you to keep your stock "idiot light" functioning on the dash for an immediate warning while using the AutoMeter gauge for precise monitoring. Always use a small amount of thread sealant or Teflon tape on the NPT threads, but be extremely careful not to let any excess sealant enter the oil passage, as it can clog the small orifice in the gauge or the engine''s internal oil galleys.

Tip 3: Lighting and Night Visibility

The Ultra-Lite series uses traditional incandescent bulb lighting that provides a classic glow around the perimeter of the dial. To perfectly match your VW''s interior aesthetic, you can use the included colored bulb covers (usually red and green) or upgrade the bulb to a modern LED for a crisper look. When wiring the light, tap into your headlight switch or the factory dash light circuit so the gauge dims along with your speedometer. This ensures that the bright silver face of the Ultra-Lite doesn''t cause distracting glare during night-time cruising on dark backroads.