The Caterpillar 3306 and 3304 are legendary diesel engines powering some of the most iconic CAT construction and earthmoving equipment ever built — from D-series dozers to track loaders and motor scrapers. The fuel transfer pump draws fuel from the tank and delivers it at low pressure to the injection pump, keeping the entire fuel system primed and ready. When it fails, you'll face hard starts, fuel starvation under load, and eventually a no-start condition. This brand-new aftermarket transfer pump is a direct replacement for CAT part numbers 4N-4864, 4N4864, and CA4N4864, engineered to restore proper fuel flow and protect your injection pump from dry-running damage.

✅ Direct-Fit Compatibility

• CAT Engines: 3306, 3304
• CAT Tractors & Equipment: 621R, 941B, 951C, 955L, 977L, D4D, D4E, D5, D5B, D6C, D6D, D7G
• Bolt-on replacement — no modifications required

🔧 Product Highlights

• 100% Brand New Aftermarket: Not rebuilt or refurbished — starts with a full service life
• OEM-Spec Fuel Flow: Correct flow rate and pressure to keep the injection pump primed and protected
• Direct Drop-In Fit: No modifications required; installs like the original
• 3 Part Number Formats: Covers CA4N4864, 4N-4864, and 4N4864 for confirmed fitment across all sources
• Broad CAT Equipment Coverage: Fits 13 CAT equipment models across dozers, loaders, and scrapers
• Protects Your Injection Pump: Proper fuel delivery prevents dry-running damage to downstream components

📦 What's Included

• 1 × Fuel Transfer Pump (4N-4864 / 4N4864 / CA4N4864)

🔑 Key Specs

• Part Numbers: 4N-4864, 4N4864, CA4N4864
• Condition: 100% New Aftermarket
• Fitment: CAT 3306 / 3304 engines; 621R / 941B / 951C / 955L / 977L / D4D / D4E / D5 / D5B / D6C / D6D / D7G

Please verify your equipment model and existing part number before ordering. Contact us for fitment confirmation if needed.