Throttle Body Fiat Iveco 2.3 d

The throttle body with original OE code 504345920 è an electronic component installed in the intake system of commercial and industrial vehicles by Iveco, particularly in Daily models equipped with diesel engines. It is a motorized valve that controls the flow of’air to the intake manifold based on the requests of the engine control unit. The throttle valve è is essential for managing the intake phase, idle, and for the’integration with exhaust gas recirculation (EGR) systems.

2. Technical specifications

• Type: electronic throttle valve (drive-by-wire)
• Supply voltage: 12 V
• Electrical connection: connector with 5 poles
• Body: made of metal alloy with integrated electric actuator
• Sensors: built-in throttle position sensor
• Internal valve diameter: approximately 50 mm
• Configuration: flanged connection with gasket and mounting holes

3. Functionalityà

The OE throttle body 504345920 electronically regulates the amountà of air drawn into the engine, based on the position of the accelerator pedal and the parameters required by the engine control unit. The internal electric motor opens and closes the valve according to the instructions received from the’ECU. This management allows for the adjustment of idle speed, response to’acceleration, the dosing of’EGR and the containment of emissions during transient phases. È also involved in the rapid closure of the’air in case of shutdown, improving comfort and reducing vibrations.

DIPA può to intervene to review these modules thanks to your experience and expertise.

4. Brand and model on which the part è mounted

Fiat

• Ducato (Bus, Van, Chassis)

Iveco

•  Daily (Bus, Van, Chassis)

The installation varies depending on the’equipment and anti-pollution regulations, but the code remains consistent for all unitsà that adopt the same intake architecture–EGR.

DIPA recommends to always check compatibilityà based on the specific engine code and chassis number.

5. Defects and causes

Mechanical obstruction

The presence of carbon residues, vaporized oil, or dust canò cause the throttle to become stuck, preventing its’full opening or closing.

Failure of the’electric actuator.

The internal motor canò fail due to wear or short circuits, making the valve unresponsive to the commands of the’ECU.

Faulty throttle position sensor

The integrated sensor canò return incorrect or inconsistent signals, leading to management anomalies and triggering the check engine light.

Damaged electrical connections

Broken wiring, oxidized or unstable connectors can compromise the transmission of electrical signals between the ECU and the throttle body.

Deformations or cracks in the valve body

Structural damage to the metal or plastic housing can compromise the seal, causing unmeasured air intake.

Final conclusions

The OE throttle body 504345920 è a key component for the proper functioning of diesel engines mounted on Iveco Daily and similar vehicles. Its role in managing the quantityà of’intake air and in’interaction with the EGR system è essential for ensuring optimal performance and emission control.

DIPA has a wide range of spare parts: from original ones to aftermarket ones selected from the best manufacturers on the market. Not only that: it also has refurbished components with performance equal to new, which allows for savings in replacement and contributes to the protection of the’environment thanks to the’circular economy. Also ask about the availabilityà of refurbished parts ready in stock for quick interventions and no waiting times.