Throttle New Marelli Fiat Iveco 2.3 d

The throttle body with original OE code 71724304 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 pins
• Body: made of metal alloy with integrated electric actuator
• Sensors: built-in throttle position sensor
• Internal valve diameter: approximately 50 mm
• Configuration: flange mount with gasket and mounting holes

3. Functionalityà

The OE throttle body 71724304 electronically regulates the quantityà of air drawn in by the engine, depending 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 the idle speed, the response to’acceleration, the dosing of’EGR, and the containment of emissions during transient phases. È also involved in the rapid closure of’air in case of shutdown, improving comfort and reducing vibrations.

DIPA canò intervene to revise these modules thanks to its experience and expertise.

4. Brand and model on which the part è mounted

Fiat

• Ducato (Bus, Van, Flatbed)

Iveco

•  Daily (Bus, Van, Flatbed)

The installation varies depending on the’configuration and the 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 jam, preventing it from’fully opening or closing.

Failure of the’electric actuator

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

Faulty throttle position sensor

The integrated sensor canò return incorrect or inconsistent signals, causing 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 casing can compromise the seal, causing unmeasured air intake.

Final conclusions

The OE electronic throttle body 71724304 è a key component for the proper functioning of diesel engines mounted on Iveco Daily and similar vehicles. Its role in managing the amountà of’intake air and in’interaction with the EGR system è is essential to ensure optimal performance and emission control.

DIPA offers a wide range of spare parts: from original ones to aftermarket ones selected from the best manufacturers on the market. Not only that: it 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.