Elec Oil Press Sender, 100Psi

OVERVIEW

Precision monitoring is the absolute lifeblood of any high-performance air-cooled engine, and the AutoMeter Electric Oil Pressure Sender (100 PSI) is the industry standard for keeping tabs on your Volkswagen''s internal health. In the world of flat-four engines, oil isn''t just a lubricant; it is a primary cooling agent. Without accurate real-time data, you are essentially flying blind, risking catastrophic bearing failure or overheating. This heavy-duty sending unit is engineered to provide a stable, linear signal to your AutoMeter short-sweep electric gauge, ensuring that you see every fluctuation in pressure whether you are idling at a stoplight in your Beetle or screaming across the dunes in a high-horsepower sand rail. When you choose AutoMeter, you are investing in decades of American-made racing heritage and reliability that generic sensors simply cannot match.

Designed specifically for the rugged environments that air-cooled enthusiasts thrive in, the ATM2242 sender features a robust internal diaphragm assembly that resists the high-frequency vibrations common in Type 1 and Type 4 engines. Unlike mechanical gauges that require running a messy, pressurized oil line into your cockpit, this electric sender converts pressure into a precise electrical resistance at the source. This significantly increases safety by keeping hot oil outside the passenger compartment while maintaining the rapid response time needed for performance driving. The unit comes standard with a 1/8-inch NPT male thread, which is the most common size for aftermarket oil pressure adapters and sandwich plates, and it includes a 1/4-inch NPT adapter to ensure it can be fitted to a wide variety of case configurations and oil pump covers. Don''t settle for "good enough" when it comes to your engine''s survival; install the sender that professional engine builders trust.

FITMENT

This universal 100 PSI sender is designed for use with AutoMeter short-sweep electric oil pressure gauges and is a perfect fit for the following air-cooled Volkswagen applications (when used with appropriate adapters or VDO-to-NPT bushings):

• Volkswagen Type 1 Beetle / Bug: 1946 through 1979 (All models)
• Volkswagen Type 2 Bus / Transporter / Kombi: 1950 through 1979
• Volkswagen Karmann Ghia: 1956 through 1974
• Volkswagen Type 3 (Squareback, Fastback, Notchback): 1962 through 1973
• Volkswagen Type 181 Thing: 1973 through 1974
• Custom Applications: Dune Buggies, Sand Rails, Baja Bugs, and Trikes utilizing VW-based engines.
• Engine Compatibility: Fits 1200cc, 1300cc, 1500cc, and 1600cc based upright engines, as well as Type 4 1700cc, 1800cc, and 2000cc pancake engines.

SPECS

• Pressure Range: 0 to 100 PSI (Maximum reading)
• Sender Type: Electric / Short Sweep Resistance
• Thread Size: 1/8-inch NPT Male
• Included Hardware: 1/4-inch NPT Adapter Fitting
• Terminal Type: Single Post (Standard 10-32 nut and lock washer)
• Compatibility: Calibrated for AutoMeter Short Sweep Electric Gauges ONLY
• Construction: Corrosion-resistant metal housing with high-temp internal seals
• Origin: Proudly manufactured by AutoMeter Products, Inc.

PRO TIPS

Tip 1: Avoid Excessive Thread Sealant

Because this is a single-terminal sender, it relies on the engine case or the mounting block for its electrical ground. If you wrap the threads too thick with Teflon tape or use an excessive amount of liquid pipe sealant, you can actually insulate the sender from the ground source. This will result in a gauge that stays pegged at the maximum reading or behaves erratically. For the best results, use a very small amount of conductive thread sealant or just a single wrap of tape, leaving the bottom-most threads bare to ensure a solid metal-to-metal connection with the engine.

Tip 2: Remote Mounting for Longevity

Air-cooled VW engines are notorious for high-frequency vibration, especially when equipped with performance cams or stiff urethane mounts. Mounting a heavy sender directly to the engine case or a thin oil pump cover can lead to fatigue failure of the brass fittings or the sender internals over time. I highly recommend using a "Remote Relocation Kit," which consists of a short length of braided stainless steel hose. This allows you to mount the sender to the firewall or a frame rail, isolating it from engine vibration and making it much easier to access for maintenance.

Tip 3: Confirm Gauge Calibration

It is vital to remember that not all 100 PSI senders are created equal. This ATM2242 sender is specifically calibrated to the resistance curve used by AutoMeter''s short-sweep gauges. If you try to use this with a VDO, Stewart Warner, or a "Long Sweep" (90-degree or 270-degree) AutoMeter gauge, your readings will be wildly inaccurate. Always verify that your gauge is an AutoMeter electric short-sweep model before installation to ensure you are getting the precision data you need to protect your investment.