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The AutoMeter Spek‑Pro rail pressure gauge is a 2‑1/16" instrument designed for modern high‑pressure diesel systems, using a digital stepper motor drive and solid‑state sensing for precise readings. It connects to your factory sensor and ships with a plug‑in pass‑through harness to simplify wiring on 2001–2012 GM Duramax and 2003–2008 Dodge Cummins applications. Seven backlight colors and configurable alerts enhance visibility and safety.
Autometer Spek-Pro Gauge Rail Press 2 1/16in 30Kpsi Stepper Motor W/Peak & Warn Blk/Chrm
