CAT 376-8858 Controller

CAT 376‑8858 is a monitor/display controller panel used on Caterpillar mini‑hydraulic excavators (models 303.5E/304E/305.5E/305E/308E and variants). Common failure points for this unit include LCD backlight degradation, power supply IC overheating, and connector corrosion due to vibration or moisture ingress. First‑check diagnostics: verify the panel’s 12 V DC input voltage and continuity of the power rails; inspect all surface‑mount components for burn marks or swollen electrolytics; and review any fault codes displayed on the LCD or transmitted via the CAN/serial interface.[oss-gpt-20b]

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We specialize in the repair and refurbishment of high-end industrial control electronics and power systems like this unit.

⚙️ Fast Diagnostics – Same-day evaluation available
🔁 Reliable Turnaround – Most jobs ship within 5–10 business days
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