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Home›Repair guides›Spark Plug Removal and Installation

Cummins — Spark Plug Removal and Installation

For these Cummins models: GTA14, GTA14 qi 20 NA.

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Procedure

  1. 1. Cool engine
  2. 2. Remove spark plug wire
  3. 3. Unscrew spark plug using socket
  4. 4. Install new spark plug
  5. 5. Reinstall spark plug wire

Tools required

  • Spark plug socket
  • Spark plug gap tool

Source: manual:Cummins Gas GTA14 Manual 1998 (2).pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.