Fuel Transfer Pump 313-7770 / 3137770 — Direct Fit for Caterpillar 3500 Series & Haul Truck Engines

When your CAT is running a mine haul cycle or powering through a heavy construction shift, the last thing you need is a fuel transfer pump failure. This precision aftermarket replacement is engineered to CAT specifications, delivering consistent low-pressure fuel supply to keep your injection system fed and your engine performing at full capacity — shift after shift, in the harshest operating environments on earth.

✅ Compatible Caterpillar Engines & Equipment

• Caterpillar 3508 engine
• Caterpillar 3512B engine
• Caterpillar 3512C engine
• Caterpillar 3516B engine
• Caterpillar 3516C engine
• Caterpillar 776D Haul Truck
• Caterpillar 777C Haul Truck

🔧 Why Transfer Pump Reliability Is Critical on Large CAT Engines

The 3500-series engines are high-displacement, high-output powerplants — they demand a steady, uninterrupted fuel supply. A degraded transfer pump causes fuel starvation, injection pump wear, hard starts, and power loss under load. On mining and heavy construction equipment, unplanned downtime can cost thousands per hour. Replacing a failing transfer pump proactively is one of the highest-ROI maintenance decisions you can make.

⚙️ Product Highlights

• Part Numbers: 313-7770 / 3137770
• Condition: 100% New — Aftermarket Quality
• CAT-Spec Pressure & Flow: Engineered to deliver consistent fuel supply across all load conditions and engine speeds
• Heavy-Duty Rated: Built for continuous high-cycle operation in mining, construction, and industrial environments
• Direct Replacement: Bolt-on fitment — no modification required
• Applications: Open-pit mining, quarrying, heavy construction, power generation

📦 What's Included

1 × Fuel Transfer Pump (313-7770 / 3137770)

⚡ Fast Shipping — Minimize Equipment Downtime

In stock and ready to ship. Every hour your equipment sits idle costs money — we ship fast to get you back to work. Need to confirm fitment against your machine serial number? Contact us and we'll verify before you order.