Caterpillar CAT 126-3375 Controller
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The Caterpillar CAT 126‑3375 is an air‑conditioning and heater control panel used on B‑series excavators and similar heavy equipment. Common failures include a defective electronic board or relay contacts, often manifesting as loss of AC/heater operation; the panel can be replaced with the 239‑7345 Air Conditioner Control Group if it fails. First‑check steps: verify power to the control board (48 V DC input), inspect all relays and fuses for continuity, and review any diagnostic error codes displayed on the panel’s indicator LEDs.[oss-gpt-20b] |
Need your Caterpillar repaired or tested?
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
- 🧰 Expert Technicians – Decades of board-level experience
- ✅ 1-Year Warranty – Every repair fully guaranteed
📞 Call Now: 1 (336) 969-0110
Free Estimates • Industrial-grade testing • Nationwide Service
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[oss-gpt-20b]We reclaim and repair GPUs and industrial AI hardware (cards, PSUs, fan modules, VRM boards). Free estimate — you only pay return shipping if you decline.
- 🔧 Board-level diagnostics (shorts, VRM, memory, fan, thermals)
- 🧪 Burn-in + benchmarks (hash/matrix, memtest, stability)
- ♻️ Option: donate failed cards for parts → we refurb + resell
- ✅ 1-Year warranty on completed repairs
Free Estimates • Industrial-grade testing • 1-Year Warranty • Nationwide Service
Other Repaired Units by Caterpillar
Caterpillar BL550 Control UnitCaterpillar 10R-5648 ControllerCaterpillar 980F Cluster Gauge AssemblyCaterpillar CAT 126-3375 ControllerCaterpillar 41596x john deer cotroll unitContact Us
🚑Shop Location🛠️
Industrial Electronic Repair
145 Rockwell Place Ct
Tobaccoville, NC 27050
🚑 Rush repair shipments only — no walk-ins.
📞Phone
📦Mailing Address🚛
Industrial Electronic Repair
931-E S. Main St #204
Kernersville, NC 27284
📦 Mailing Address (for invoices or shipped repairs)
No walk-ins accepted.