Bosch VP29 VP30 VP44 Pump

1. Product Introduction

The VP29 / VP30 / VP44 are Bosch electronically controlled distributor-type fuel injection pumps (sometimes called “VE-type with electronic control”) used mainly in diesel engines during the 1990s–2000s.

Here’s a breakdown:

VP29 / VP30

Lighter-duty, electronically controlled rotary distributor pumps.
Typically found on smaller passenger car diesel engines (e.g., Ford, Opel, VW in some models).
They use a rotor distributor system with a solenoid valve controlled by an ECU to meter fuel.
Usually for engines with moderate injection pressures (\~800–1000 bar).

VP44

A more advanced, higher-capacity version of the VP30.
Common on larger passenger car diesels, light trucks, and even some industrial/agricultural engines (e.g., Opel 2.0/2.2 DTI, BMW 2.5d, Nissan, Cummins ISB 5.9).
Can reach higher injection pressures (\~1400–1600 bar).
Has an internal electronic module (PSG5 or PSG16), which is prone to failures due to heat.
Plays a big role in pre-common-rail electronic diesel control.

2. Product Model List