Mercedes Sprinter W901 W903 Accelerator Throttle Pedal A9013000404

Mercedes Sprinter W901 W903 Accelerator Throttle Pedal is an item from the Leaf springs and springs category, designed for operation in the front suspension area. This used component helps maintain vehicle stability, improves leaf spring deflection control, and limits unwanted suspension bottoming when driving under load.

Specifications and technical data

• SKU: A9013000404
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A9013000404
• Substitutable numbers: A9013000404, A 901 300 04 04
• Location on the vehicle: Front
• Category: Leaf & Coil Springs

Purpose and technical function

The leaf spring bump stop in W901–W903 series models is responsible for controlled limitation of suspension travel on the front axle. In practice, this means that during significant leaf spring deflection, the impact energy is partially absorbed by the bump stop, which reduces the loads transferred to the frame, the leaf spring, and other suspension components.

Using the correct bump stop in this location results in:

• more predictable vehicle behavior when fully loaded,
• reduction of harsh suspension bottoming on uneven surfaces,
• reduced risk of damage to leaf springs and mounts,
• more stable front axle operation under commercial operating conditions.

Benefits of using an original bump stop

The leaf spring bump stop dedicated to the W901–W903 series has been designed for specific suspension geometry and leaf spring operating characteristics. As a result:

• the correct working height of the leaf spring relative to the frame is maintained,
• suspension travel limitation occurs at the moment intended by the manufacturer,
• force distribution in the mounting zone is more uniform, which promotes component durability.

Combined with properly selected front leaf springs, such a bump stop helps maintain ride comfort at a stable level, even during intensive fleet operation.

Vehicle placement and installation aspects

The presented bump stop operates in the front suspension area, working directly with the leaf springs. Replacement of this component is recommended in situations where:

• cracks, material loss, or deformations of the bump stop are visible,
• the vehicle frequently bottoms out its suspension under typical load,
• comprehensive front leaf spring maintenance is being performed.

Selecting a bump stop compatible with the suspension design is important for both safety and the durability of the leaf springs and frame mounts.

Product characteristics and practical application

As an item from the Leaf springs and springs group, this bump stop is intended for operation in demanding conditions typical for Mercedes commercial vehicles. The used component often allows for a significant reduction in suspension repair costs while maintaining proper operating parameters, provided it is installed correctly and the condition of other system components is verified.

In practice, installing the appropriate bump stop results in:

• smoother suspension deflection under heavy loads,
• reduced transmission of vibrations and impacts to the vehicle structure,
• better protection of leaf springs against mechanical overload.

Suspension service expansion and additional materials

If you are planning a comprehensive repair or upgrade of the leaf spring suspension area in your Mercedes and need other items from the same group, such as additional bump stops, components working with leaf springs, or parts supporting leaf spring operation, check the available parts in the Mercedes leaf springs and springs category.

When diagnosing disturbing noises from the suspension and planning an economical repair using dismantled parts, it is worth checking out practical tips – you will find them in the article Suspension knocking? Discover a clever way to restore factory handling precision without spending a fortune at the service center.