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12_9bed5df0-304e-4f64-a7c0-68a145ce6007 - Northline Parts

12V 3-Terminal Auto-Idle Solenoid 307-2758 for Miller AEAD 200LE & Legend Welders

SKU: NLT2T04930
$118.89 In Stock
$118.89
Sale price  $118.89 Regular price 
Ships for free in 2–4 business days.
This 12V three-terminal solenoid replaces 307-2758 on older Miller AEAD 200LE and Legend welders equipped with the auto-idle system.
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Compatible Models

We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.

Compatible equipment / model
Miller AEAD 200LE — auto-idle equipped units
Miller Legend — older auto-idle equipped units

Product Overview

A weak or failed auto-idle solenoid can leave an older engine-driven welder unable to transition cleanly between idle and working speed. This 12 VDC unit restores the electrical actuation used by the auto-idle arrangement on compatible Miller machines.

The housing uses the three-terminal configuration associated with 307-2758. On Miller AEAD 200LE and Legend auto-idle applications, the auxiliary third terminal is typically not used, so wiring should be matched to the original installation rather than assumed from terminal count alone.

Key Features & Performance

  • 12 VDC operating voltage
  • Three-terminal configuration
  • Designed for older auto-idle equipped engine-driven welders
  • Restores reliable solenoid actuation when the original unit sticks, opens electrically or fails to pull in

Replaces Part Numbers

  • 307-2758

Technical Specifications

  • Voltage: 12 VDC
  • Terminal count: 3
  • Function: Auto-idle solenoid / electrical actuator

Frequently Asked Questions

Q: How do I confirm this is the correct solenoid?
A: Match 307-2758, the 12V rating and the three-terminal layout to the original unit before ordering.

Q: Is the third terminal used on Miller auto-idle applications?
A: The auxiliary terminal is commonly unused on the AEAD 200LE and Legend auto-idle installations; duplicate the original wiring arrangement.

Fitment can vary by serial number, production date, engine configuration or prior repairs. Verify compatibility using the part numbers and application details listed above before ordering.

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