AUTO METER 2258 Short-Sweep Electric Temperature Sender — 1/8in NPT Compact with 3/8 & 1/2 Adapters

The Auto Meter 2258 is a short-sweep electric temperature sender designed as a direct replacement for current Auto Meter short-sweep electric gauges, supplying precise signal output with a 1/8in NPT thread and included adapter fittings.

This sender is engineered to integrate with Auto Meter short sweep electric gauges produced in 1995 and later. It arrives with two adapter fittings (3/8in NPT and 1/2in NPT) so you can adapt to common port sizes, and its compact 1/8in NPT body suits tight engine-bay installations. Note that it is not compatible with Auto Gage products, and pre-1995 Auto Meter short sweep electric gauges require sender PN2254 because the older gauges have a black mask that conceals the pointer hub.

How do I know this sender will fit my gauge and vehicle?

Compatibility depends on the gauge generation and the threaded port available in your application. The 2258 is made to match current short sweep Auto Meter electric gauges (1995 and newer), and adapters extend flexibility for different thread sizes.

• Standard thread: 1/8in NPT body for compact mounting.
• Included adapters: 3/8in NPT and 1/2in NPT for alternate ports.
• Direct replacement for current Auto Meter short-sweep electric gauges.
• Not compatible with Auto Gage product line or pre-1995 masked gauges.

What installation considerations should I plan for?

Installation is straightforward for mechanics familiar with gauge senders, but observe basic sealing and electrical connection practices. Use thread sealant rated for temperature sensors and ensure correct wiring to the gauge signal circuit.

• Tighten to manufacturer-recommended torque to avoid thread damage.
• Use appropriate temperature-safe thread sealant or Teflon tape sparingly.
• Verify electrical connector is clean and secure for reliable readings.
• Choose the included adapter that fits your port before final installation.

Which limitations and compatibility warnings should I be aware of?

This sender is purpose-built for Auto Meter short sweep electric gauges and has specific compatibility boundaries. Confirm gauge production year and model family before ordering to avoid mismatch.

• Works only with Auto Meter short sweep electric gauges built in 1995 or later.
• Not compatible with Auto Gage-branded gauges or legacy masked dials.
• Pre-1995 short sweep gauges require sender PN2254 instead of the 2258.
• Designed for electrical gauge systems, not mechanical installations.

What technical and packaging details are useful to know?

The 2258 ships from the United States and comes in a compact parcel suited for bulk or retail inventory. Its small weight and dimensions make handling and storage easy for shops and parts departments.

• Fit type: vehicle specific for Auto Meter short sweep electric gauges.
• Package weight: approximately 0.045 kilograms for light shipping.
• Package dimensions: 1.905 H x 15.24 L x 8.89 W centimeters.
• Country of origin: United States.

Who is this for? The Auto Meter 2258 short sweep electric temperature sender is aimed at vehicle owners, restoration shops, and performance garages replacing or upgrading Auto Meter short sweep gauges from 1995 onward. If you maintain modern Auto Meter electric gauges and need a compact, adaptable sender with included 3/8in and 1/2in NPT adapters, this unit is a practical choice. Choose PN2254 instead if you work on pre-1995 gauges with a masked dial.