Autometer 2-1/16 Sport-Comp T

OVERVIEW

Heat is the silent killer of any drivetrain, and when you are pushing your air-cooled Volkswagen to the limit, monitoring your transmission fluid temperature is not just a luxuryit is a necessity. The AutoMeter Sport-Comp 2-1/16 Inch Transmission Temperature Gauge (ATM3357) provides the precision and rugged reliability that Appletree Auto customers demand for their high-performance street cars, rugged off-road sand rails, and heavy-duty Type 2 Transporters. Featuring the iconic Sport-Comp aesthetic with its signature black face, bold white digits, and high-visibility fluorescent red pointer, this gauge ensures you can monitor critical vitals at a glance, even in the most demanding driving conditions. Whether you are climbing a steep grade in a fully loaded Westfalia or launching your bug off a dune, knowing your fluid temperature allows you to adjust your driving style before expensive damage occurs.

Engineered with AutoMeter''s legendary air-core meter movement, the ATM3357 delivers lightning-fast response times and unmatched accuracy compared to standard mechanical gauges. This short-sweep electric gauge is designed for ease of installation, utilizing a 1/8 inch NPT sender that integrates seamlessly into your VW''s oiling system or transmission pan. The Sport-Comp series has been a staple in the racing industry for decades because it balances professional-grade performance with a classic look that complements any dashboard. By installing this gauge, you are investing in the longevity of your transaxle, ensuring that your fluid remains within the optimal operating range to maintain lubricity and protect your gears and synchros from premature wear caused by thermal breakdown.

FITMENT

This universal 2-1/16 inch (52.4mm) gauge is designed to fit a wide variety of air-cooled and water-cooled applications, including but not limited to:

• Volkswagen Beetle: All years and models (1946-1979)
• Volkswagen Super Beetle: 1971-1979
• Volkswagen Karmann Ghia: 1955-1974
• Volkswagen Type 2 Bus / Transporter / Westfalia: 1950-1979
• Volkswagen Type 3 (Squareback, Fastback, Notchback): 1961-1973
• Volkswagen Thing (Type 181): 1973-1974
• Custom Applications: Dune Buggies, Sand Rails, Manx-style bodies, and kit cars
• Transmission Compatibility: Ideal for Type 1, Type 2, and Type 091 transaxles

SPECS

• Product Line: AutoMeter Sport-Comp
• Product Number: ATM3357
• Gauge Diameter: 2-1/16 inches (52.4mm)
• Gauge Type: Short Sweep Electric
• Temperature Range: 100 - 250 Degrees Fahrenheit
• Movement Type: Air-Core Meter Movement for maximum precision
• Face Color: Black with white numerals
• Pointer Color: Fluorescent Red
• Bezel Finish: Silver / Brushed Aluminum look
• Lighting: Perimeter Incandescent (includes red and green bulb covers)
• Sender Included: 1/8 inch NPT Electric Temperature Sender
• Adapters Included: 3/8 inch NPT and 1/2 inch NPT adapter fittings
• Voltage: Compatible with 12-Volt electrical systems

PRO TIPS

Tip 1: Optimal Sender Placement for Accuracy

To get the most accurate reading of your transmission''s thermal state, we recommend mounting the sender in the fluid return line or directly into the transmission pan. If you are mounting the temperature sender in a steel fluid pan, it is highly recommended to use an AutoMeter #2260 weld-in boss. This ensures a leak-free seal and provides a solid mounting point that won''t strip over time. Avoid mounting the sender in areas of "dead" fluid where there is no flow, as this will result in a sluggish or artificially low reading that doesn''t reflect the true temperature of the fluid entering your gears.

Tip 2: Ensuring a Rock-Solid Electrical Ground

Electronic gauges are only as accurate as their ground connection. In the world of vintage Volkswagens, old wiring and painted surfaces can create resistance that skews your gauge readings. When installing the ATM3357, ensure that the sender has a clean, metal-to-metal contact with the transmission case or pan. If you use Teflon tape on the sender threads, be careful not to over-apply it, as it can insulate the sender and prevent it from grounding properly. If you suspect a grounding issue, you can run a dedicated ground wire from the sender body or the adapter fitting directly to the chassis to ensure the signal remains precise.

Tip 3: Understanding Your Operating Ranges

While the gauge reads up to 250 degrees Fahrenheit, you should strive to keep your air-cooled VW transaxle fluid between 175 and 210 degrees for maximum component life. If you notice your temperatures consistently creeping toward the 230-degree mark, it is a clear indicator that your fluid is beginning to oxidize and lose its protective properties. In these cases, consider upgrading to a high-quality synthetic gear oil or adding an external oil cooler with a dedicated fan. Monitoring these trends with your AutoMeter gauge allows you to catch cooling system inefficiencies before they result in a costly roadside breakdown.