Diesel Fuel Injection Pump – 2644H509 / 9320A533H
This fuel injection pump (Part Number: 2644H509 / 9320A533H) is a high-quality replacement component for diesel engines and construction equipment. Manufactured to meet or exceed OEM specifications, it ensures reliable performance and long service life in demanding operating conditions.
Applications
diesel engines in construction machinery, trucks and industrial equipment. The injection pump meters and delivers fuel to the injectors at high pressure; its calibration directly controls engine power, fuel consumption and exhaust smoke levels. Verify the part number and rotation direction against your engine serial number before ordering.
Part Number Reference
- Primary Part Number: 2644H509
- Alternate Part Number: 9320A533H
We also supply injection pumps, transfer pumps, nozzles and complete fuel system components for most major engine brands. Send us your part number and engine model and our team will verify the fitment.
Technical Specifications
- Product Type: Fuel Injection Pump
- Part Number: 2644H509 / 9320A533H
- Quality: OEM specification
- Condition: New
Usage Notes
- Injection timing is critical for power, fuel economy and emissions – have the installation timed by a qualified technician.
- Confirm the part number and rotation direction against your engine serial number before ordering.
- Bleed all air from the fuel system before cranking the engine.
- Contaminated fuel is the main cause of injection pump failure – always install new fuel filters with the new pump.
Installation Guide
- Clean the pump area and all fuel line connections thoroughly before starting work.
- Disconnect the battery and cap all open fuel lines immediately to keep dirt out of the injection system.
- Remove the old pump following the service manual, marking the position of the timing marks and drive gear.
- Transfer the timing setting: align the injection pump drive gear timing marks exactly as specified.
- Install the new pump, meshing the drive gear carefully without forcing.
- Use new O-rings, seals and copper washers on all connections.
- Tighten the mounting bolts to the specified torque values.
- Verify the static injection timing with a dial indicator before starting the engine.
- Bleed the fuel system completely: filters first, then the pump, then the lines.
- Start the engine, check for leaks and confirm smooth running; then verify timing and idle speed.
Reference Price Range
The reference price for this fuel injection pump is approximately USD 500 – 1,800 per unit, depending on configuration, availability and shipping destination. Contact our sales team for a precise quotation. Volume discounts are available for fleet operators and repair shops.
Maintenance Tips
- Use only clean, water-free diesel fuel from a trusted source.
- Replace fuel filters at the recommended intervals and drain water from the separator regularly.
- Investigate hard starting, black smoke or rough idle immediately.
- Never open the fuel system without cleaning the connections first.
- Keep spare fuel filters and pump drive seals in stock for critical machines.
Warranty
All products supplied by us are covered by a 12-month warranty against manufacturing defects in materials and workmanship.
Shipping and Delivery
In-stock items ship within 24-48 hours via express freight (DHL, FedEx, or UPS). Standard delivery time is 5-10 business days worldwide.
Why Choose Our Products?
- Direct OEM replacement with guaranteed fitment and performance
- Rigorous quality testing before shipment
- Competitive pricing with factory-direct supply chain
- Technical support available for installation and troubleshooting
- Proven reliability with thousands of units supplied worldwide
