AUTO METER Short-Sweep Electric Temperature Sender 2258 — 1/8" NPT Body with 3/8" & 1/2" Adapters, US-Made

This sender provides a compact, vehicle-specific solution when a short-sweep temperature sending unit needs replacement. Engineered in the United States for compatibility with Auto Meter short-sweep electric gauges (post-1995 models), the 2258 installs using its 1/8" NPT body or the included 3/8" and 1/2" NPT adapters. It is not compatible with Auto Gage brand gauges and is intended to restore accurate gauge response when the original sender has failed or is being upgraded.

Will this sender fit my current Auto Meter short-sweep gauge?

If your Auto Meter short-sweep electric gauge was manufactured in 1995 or later, the 2258 is a direct replacement designed to match factory specifications and pointer movement. Pre-1995 short-sweep gauges use a different internal mask and require sender PN2254 instead.

• Compatible with Auto Meter short-sweep electric gauges built 1995 and newer.
• Not compatible with Auto Gage brand instruments.
• Direct-replacement electrical and mechanical design for modern short-sweep gauges.

What thread sizes and adapters are included?

The sender's main body features a 1/8" NPT thread and comes with two adapter fittings so you can adapt to larger ports without additional purchases. This range of fittings makes it easy to install the sender into a variety of plumbing or sensor ports commonly used on engines and manifolds.

• Factory thread: 1/8" NPT (standard on the sender body).
• Included adapters: 3/8" NPT and 1/2" NPT for broader compatibility.
• Adapters allow use with aftermarket or legacy ports that accept larger NPT sizes.

How do I install the Auto Meter 2258 sender?

Installation is straightforward for anyone familiar with sending units: identify a suitable port, use the proper adapter if needed, and wire to the gauge per the manufacturer's instructions. Ensure the engine is cool and wiring connections are secure to prevent signal errors or leaks.

• Shut off engine and relieve pressure before removing the old sender.
• Select and thread in the correct adapter (if required) to match the port size.
• Connect the sender's electrical lead to the gauge following Auto Meter wiring guidelines.

What are the product origin and packaging details?

The 2258 sender is made in the United States and packaged compactly to protect the unit and adapters during shipping. The lightweight assembly is convenient to carry and store when servicing multiple vehicles or replacement projects.

• Country of origin: United States.
• Package dimensions: 1.905 cm H x 15.24 cm L x 8.89 cm W.
• Package weight: 0.045 kilograms, compact and travel-friendly.

Who is this for? The Auto Meter 2258 short-sweep electric temperature sender is aimed at automotive technicians, restoration enthusiasts, and owners of vehicles equipped with Auto Meter short-sweep electric gauges made from 1995 onward. Choose this unit when you need a direct-fit replacement with included adapters, a U.S.-made component, or when you want to match electrical and mechanical behavior of modern Auto Meter short-sweep instruments. If your gauge predates 1995 or is an Auto Gage product, verify compatibility before purchasing.