Buy 0402066704 - Genuine Bosch Fuel Injection Pump - wisentpartscenter.com

Description

The Genuine Bosch Fuel Injection Pump is a mechanical inline diesel injection pump for Cummins 6BTA 5.9L engines. Part of the Bosch P-series injection system, it delivers high-pressure diesel fuel to all six cylinders through individual injection lines. The pump controls fuel delivery and injection timing to maintain engine power, smooth operation, and efficient combustion in agricultural and industrial equipment.

Fitment & Specifications

- Brand: Bosch
- Part Type: Mechanical Fuel Injection Pump
- Pump Family: Bosch P-Series / P3000
- Engine: Cummins 6BTA 5.9L
- Documented CPL: 1889
- Fuel System: Mechanical Inline Injection
- Configuration: 6-cylinder
- Applications: Agricultural sprayers and industrial equipment

Verify fitment with us before ordering to ensure the correct part for your application.

Purpose of the Part

The Bosch Fuel Injection Pump pressurizes and distributes diesel fuel to each injector in the correct firing sequence. Its camshaft-driven pumping elements deliver measured fuel quantities, while the mechanical governor adjusts fuel delivery according to engine speed and load. Proper pump operation maintains injection timing, fuel pressure, and consistent engine performance.

Issue Symptoms / When to Replace

A failing fuel injection pump may cause:

- Hard starting or extended cranking.
- Rough idle or uneven engine operation.
- Reduced power under load.
- Excessive black or white exhaust smoke.
- Engine stalling or inconsistent RPM.
- Fuel leaks around the pump housing.
- Poor throttle response or unstable fuel delivery.

Similar symptoms can result from restricted fuel filters, air entering the fuel system, faulty injectors, or incorrect injection timing.

Brand Information

Bosch manufactures diesel fuel injection equipment for commercial, agricultural, and industrial engines. Its mechanical P-series injection pumps use individual pumping elements to provide high-pressure fuel delivery. Bosch P-series pumps are used in Cummins B-series diesel engine applications.

Installation Notes

Before installing the fuel injection pump, verify the correct pump calibration and engine timing specifications. Clean fuel connections, inspect the fuel supply system, and install the pump according to Cummins timing procedures. Prime and bleed the fuel system, then check for leaks and proper engine operation.

How to Identify an OEM Part

Identify the Genuine Bosch Fuel Injection Pump by the Bosch factory identification plate attached to the pump housing. The plate displays the Bosch part number and pump identification code.

Why Buy 3935785 From Wisent Parts Center?

  • 1 Year
    Warranty

  • Genuine Parts

    Authentic OEM parts

  • 30-Day Returns

    Conditions apply

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Warranty & Return Information
Warranty Information

Wisent Parts offers a 1-year warranty on all parts from the date of delivery. This warranty covers orders placed directly through our website. If a part fails during this period, we’re here to help - whether it’s a replacement, repair, or refund. For full details, refer to the Warranty page.

Return Information

Wisent Parts accepts returns within 30 days of delivery. All returns are subject to a restocking fee. To qualify, parts must be unused and in their original condition. For full return instructions and restocking fee details, please refer to the Returns page.