✅ Compatibility

• Make: Caterpillar (CAT)
• Engine: Caterpillar C3.3B
• Skid Steer & Compact Track Loaders: CAT 236D, 242D, 242D3, 246D, 259D
• Compact Excavators: CAT 308, 309, 310
• OEM Part Number: 436-1091
• Condition: Remanufactured
• Quantity: 1 Piece

Keep your CAT compact equipment running at peak output with this precision-built remanufactured fuel injection pump. Engineered specifically for the Caterpillar C3.3B engine, part number 436-1091 delivers consistent, high-pressure fuel metering across the full operating range — from low-idle site work to full-load digging and lifting. This remanufactured unit installs directly in place of the OEM pump with no modifications required.

🔧 Product Highlights

• Precise Fuel Metering: Optimizes combustion efficiency for maximum power and fuel economy
• Consistent Power Output: Maintains stable injection pressure under demanding jobsite loads
• Direct OEM-Spec Fit: Engineered for the CAT C3.3B; bolt-on replacement with no modifications
• Remanufactured to OEM Standards: Professionally rebuilt and tested to meet or exceed original specifications
• Cost-Effective Alternative: OEM-equivalent performance without dealer pricing
• Broad Model Coverage: One pump fits multiple CAT loaders and excavators

📦 What's Included

• 1 × Fuel Injection Pump (Part No. 436-1091)

🔑 Key Specs

• Part Number: 436-1091
• Compatible Brand: Caterpillar (CAT)
• Engine: C3.3B
• Models: 236D, 242D, 242D3, 246D, 259D, 308, 309, 310
• Condition: Remanufactured
• Fitment Type: Direct Replacement

Please verify your equipment model and serial number before ordering to confirm compatibility. A failing pump means lost pressure, rough running, and costly jobsite downtime — this direct-fit remanufactured replacement gets your machine back to work fast, without the OEM wait or dealer markup.