Mercedes R172 Steel Compact Spare Wheel Steel R17 4,5J Tyre 145/70 A1724000002

Mercedes R172 Steel Compact Spare Wheel Steel R17 4,5J Tyre 145/70 is a practical, factory-engineered emergency solution designed to maintain vehicle mobility in the event of a primary tyre failure. The compact design of the steel rim with a narrow-profile tyre allows for convenient storage in the boot while ensuring a safe drive to a service centre. It is a functional choice for drivers who value predictable vehicle handling and compliance with manufacturer specifications.

Specifications and technical data

• SKU: A1724000002
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1724000002
• Substitutable numbers: A1724000002, A 172 400 00 02
• Rim diameter: 18"
• Rim width: 4.5
• Offset (ET): 40
• Hole diameter: 112
• Number of holes: 5
• Rim material: Steel
• Tire width: 195
• Category: Rims

Technical characteristics of the steel rim

The spare wheel is based on a steel rim with five mounting holes, ensuring stable seating on the hub and correct load transfer during emergency driving. The rim material is steel, making the structure resistant to typical operational damage and capable of withstanding varying road conditions. The rim size has been selected to work with the dedicated narrow spare tyre, which reduces the weight of the set and facilitates installation.

Spare tyre – functionality and purpose

The rim is fitted with a tyre of limited width, typical for space-saver wheels, which allows for maintaining appropriate ground clearance and compatibility with the suspension system. This configuration is intended for driving at moderate speeds over short distances – its purpose is to safely enable travel to a workshop or destination, rather than replacing a full-size wheel for long-term use. As a result, the driver gains additional protection in emergency situations without the need to carry a full-size spare wheel.

Intended for Mercedes R172 and mounting compatibility

The presented spare wheel has been developed for Mercedes R172 series models, which translates into a proper fit for the hub and maintenance of correct suspension geometry after installation. The rim and tyre parameters are coordinated with the vehicle manufacturer's requirements, which helps maintain predictable vehicle handling in emergency mode. For the user, this means consistency with the factory safety concept and no need to search for replacements with uncertain parameters.

Condition, origin, and benefits of choosing an original part

The wheel belongs to the Wheels category and comes from the Mercedes brand, which indicates adherence to factory design standards and compatibility with vehicle systems. As a used item, it is an attractive cost-effective alternative to new components while maintaining the original manufacturer's specification. It is a sensible choice for drivers who want to equip their car with a spare that matches the vehicle's design without overstretching their budget.

If you are planning a comprehensive repair or upgrade of the running gear in your Mercedes and need other items from the same group, such as spare rims, space-saver wheels, or service wheels, check out the available parts in the Mercedes Wheels category.

How to consciously choose used wheels

When selecting a used rim, it is worth paying attention to the compatibility of parameters with the vehicle manufacturer's requirements as well as the general visual and technical condition of the rim. It may be helpful to use practical tips regarding rim assessment, refurbishment, and safe installation – you will find them in the guide Used wheels like new: a guide to buying and refurbishing alloy wheels, which organizes key issues related to rim operation.

For drivers of premium cars, such as Mercedes, the conscious choice of original, used components is becoming increasingly important – you can read more about trends in the premium parts market and the benefits of this approach in the article Crisis in the new parts market? Why used originals for premium cars are the hottest trend in 2026.