101609-3760/101062-9270 Fuel Injection Pump Specifications For Cummins 6BTAA 5.9L

Item	Parameter/Description
OEM Part No.	Cummins P/N: 101609-3760 (Bosch internal ID) Cross Reference: 4063845 (Aftermarket)
Compatible Engine	Cummins 6BTA 5.9L (6-cylinder turbocharged intercooled diesel) → Applications: Dongfeng trucks, construction machinery, marine power, generators
Injection Pump Type	Bosch VE Rotary Distributor Pump (mechanically controlled)
Function	High-pressure fuel delivery with precise timing/volume control, regulates injection timing and engine RPM

 

 

Parameter	Description
Pump Type	Inline plunger fuel injection pump
Brand	OEM: DENSO or Zexel (Japanese manufacturers)
Plungers	6 (for 6-cylinder engine)
Governor	Mechanical centrifugal type (with boost compensation for turbocharging)
Rotation	Clockwise (viewed from drive end)
Firing Order	1-4-2-6-3-5 (Standard inline 6-cylinder sequence)
Calibration Pressure	Nozzle opening pressure ≈18-20 MPa (180-200 bar)
Mounting	Flange-fixed, front-end gear-driven

 

 

 

 

1. Key Design Features

Structure: Axial-piston rotary distributor pump (with integrated vane-type transfer pump)

Governor: Mechanical centrifugal all-speed governor (internal)

Fuel Control: Adjusts plunger stroke via governor sliding sleeve

Timing Control: Hydraulic advance device (auto-adjusts injection timing based on RPM)

Inlet Pressure: ≥0.5 Bar (requires functional lift pump)

 

 

Parameter	Value
Operating Pressure	750~950 Bar (peak)
Rotation Direction	Clockwise (viewed from drive end)
Drive Shaft Speed	1/2 engine RPM (camshaft-driven)
Injector Opening Pressure	180~220 Bar
Plunger Diameter	8.5~9.0mm (typical)

 

 

Engine Models:

→ Cummins 6BTA5.9-G / 6BTA5.9-M / 6BTA5.9-C (China Stage I-III emission)

→ ⚠ Not compatible with electronically controlled VP44 pumps (post-2003 6BT engines)!

Matching Injectors:

→ Bosch hole-type nozzles (e.g., DLLA 150P series)

→ Standard opening pressure: 210 Bar

Associated Components:

→ Requires rotary transfer pump (low-pressure supply)

→ Timing calibration tools: Bosch KTS series or dial indicator kit

 

 

Failure Symptoms

Symptom	Potential Cause
Hard starting	Worn plunger/stuck overflow valve
Power loss	Fatigued governor springs/failed advance device
Unstable idle	Binding fuel control rack
Black smoke emission	Excessive fuel supply/retarded timing

 

 

Replace diesel filters regularly (prevents abrasive wear of plunger assembly)

Use standardized diesel (sulfur <500ppm, water content <0.02%)

Inspect injection timing every 100,000 km (spec: 8°~12° BTDC @ idle)

Avoid prolonged high-RPM no-load operation (prevents governor wear)

V. Aftermarket Alternatives

Certified Parts:

→ Bosch remanufactured pumps (ID 0 460 404 XXX)

→ Delphi EPV100 series (verify compatibility)

Risk Alert:

→ Low-quality clones often suffer: substandard plunger material (fails within 500 hrs), advance device leaks, >5% calibration deviation

VI. Installation Notes

Timing Calibration:

→ Align flywheel mark with pump index (requires specialty tools)

→ Tolerance: ±1° crank angle

Bleeding Procedure:

→ Bleed low-pressure circuit first, then loosen high-pressure lines during cranking

Torque Specifications:

→ Pump mounting bolts: 22~25 Nm

→ High-pressure line nuts: 25~30 Nm (two-stage tightening)

 

 

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