Denso HP3 Pump Supply Pump Position Pin

1.Product Introduction

The Denso HP3 pump supply pump positioning pin is a small but essential part of the HP3 high-pressure fuel pump used in diesel engines, particularly in common rail fuel injection systems. The primary function of this pin is to position the supply pump correctly during assembly and operation.

Function:

• Positioning Pin: It ensures that the supply pump components, especially the gear or camshaft, are correctly aligned for optimal fuel pump operation. The pin helps to ensure precise positioning when the pump is assembled, which is crucial for consistent fuel delivery and proper engine performance.

Role in the HP3 Pump:

• The supply pump (also called a feed pump) is responsible for drawing fuel from the tank and delivering it under low pressure to the high-pressure fuel pump (HP3) where it is then pressurized for injection into the engine’s cylinders.
• If the positioning pin is not properly in place, it can cause misalignment during pump operation, leading to improper fuel pressure, inefficient combustion, and potential damage to other components like the injectors or common rail.

2.Product Model List

No.	Model
1	294187-0010
2	294187-0030
3	294187-0040
4	294187-0050
5	294187-0080
6	294187-0300
7	294187-0500