Caterpillar 312C Main Hydraulic Pump – OEM Quality Replacement

The main hydraulic pump is the power source of your Caterpillar 312C excavator.
It drives all hydraulic functions — boom, bucket, swing, and travel.

When the pump begins to wear, you may experience slower response, weak hydraulic power, or overheating oil. Replacing your old pump with a high-quality OEM-compatible unit restores performance and extends the lifespan of your excavator.

We supply tested, reliable hydraulic pumps for the Caterpillar 312C, built to match OEM specifications and ready for direct installation.

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✅ OEM Part Numbers for Caterpillar 312C Main Hydraulic Pump

Our replacement pumps are compatible with the following verified OEM numbers:

227-6198 – Genuine CAT reference for 312C main hydraulic pump

227-6199 – Updated version used on certain 312C and 312CL models

227-6046 – OEM alternative for same model range

K3V112DT-1XER-9C13 – Kawasaki pump model used as OEM equipment on CAT 312C

If your current pump matches any of these numbers, our replacement will fit your Caterpillar 312C perfectly — no modifications required.

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🔧 Why Choose Our Hydraulic Pump?

✅ OEM fit and function – plug-and-play replacement

⚙️ Precision manufacturing – built with high-grade materials and seals

💪 Tested for performance – meets or exceeds OEM hydraulic flow and pressure

🔩 Durable design – engineered for long service life in tough job conditions

🚚 Fast delivery across Europe – minimize downtime

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⚠️ When to Replace Your Hydraulic Pump

Slow or weak hydraulic movement

Hydraulic oil overheating or foaming

Whining or grinding noise near the pump

Uneven boom or bucket motion

If you notice any of these symptoms, replacing your pump early helps avoid costly hydraulic damage and machine downtime.

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📦 Fast Shipping & Expert Support

We keep Caterpillar 312C main hydraulic pumps in stock for same-day or next-day dispatch.
Not sure which pump fits your excavator? Provide your machine serial number or current part number, and our technical team will confirm the correct replacement.