Mercedes SLK R171 Rear Axle Differential Diff 3,27 Ratio WARRANTY

Listing details

The differential is sold with a 90-day warranty! It was tested before removal and is in full working order.

Mercedes SLK R171 Rear Axle Differential Diff 3,27 Ratio WARRANTY is an original drivetrain component from the Differentials category, designed for installation on the vehicle's rear axle. It ensures precise torque transfer to the wheels, stable drivetrain operation, and predictable vehicle behavior during acceleration and load changes. This solution is dedicated to users who expect a proven, factory-spec design tailored to the specifics of the SLK R171 model.

Specifications and technical data

• SKU: A1713501014
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1713501014
• Substitutable numbers: A1713501014, A 171 350 10 14
• Location on the vehicle: Rear
• Category: Differentials

Purpose and function in the drivetrain

The presented rear axle is responsible for distributing power to the rear wheels and maintaining the correct gear ratio throughout the entire operating range of the drivetrain. The applied 3.27 ratio allows for a balance between acceleration dynamics and comfortable engine RPM during highway driving, which translates into predictable vehicle reactions and stable handling.

Its location at the rear of the vehicle means the differential works in direct connection with the driveshaft and half-shafts, being responsible for:

• controlled torque transfer to the rear wheels,
• proper cooperation with the suspension and traction control system,
• maintaining the appropriate driving characteristics typical of a rear-wheel-drive Mercedes.

Benefits of using an original Mercedes differential

Using an original differential in a Mercedes SLK R171 allows you to maintain factory drivetrain performance parameters and compatibility with other components. The axle design was engineered for the specific suspension geometry, vehicle weight, and engine characteristics used in this model, which minimizes the risk of improper fitment or unwanted vibrations.

The main advantages of this solution include:

• stable gear ratio ensuring repeatable performance,
• predictable vehicle behavior during dynamic driving,
• maintaining the driving character typical of the SLK R171.

Characteristics of the used component

The differential is a salvaged part, meaning it is an original component that was previously in operation in a vehicle. Such parts are a popular choice for drivetrain repairs because they allow for maintaining the structural integrity of the car without the need for aftermarket replacements with uncertain specifications. A used rear axle is a good solution when replacing a damaged differential if you want to maintain the factory gear ratio configuration.

Before installation, standard workshop verification is recommended, including checking for play, leaks, and oil condition to ensure trouble-free operation for the remainder of the vehicle's service life.

Gear ratio selection and vehicle configuration compatibility

The 3.27 ratio is crucial for acceleration characteristics, top speed, and engine RPM at constant speeds. Proper selection of the differential for a specific engine version and transmission is important both in terms of performance and component durability. In case of doubt, it is worth consulting the configuration with a mechanic or drivetrain specialist to ensure full compatibility with the existing system.

If you want to better understand how the axle ratio affects vehicle behavior and how to choose a differential for your driving style, check out the article: Salvaged drive axles and differentials – how to choose ratios for your driving style. You will find practical tips on gear ratio definitions, component compatibility, and application examples.

Support for drivetrain upgrades

If you are planning a comprehensive repair or upgrade of the drivetrain area in your Mercedes and need other elements from the same group, such as additional differentials, drive axles, or related rear-drive components, check out the available parts in the Mercedes Differentials category.

In the context of long-term operation, it is also worth noting the impact of using original used components on the vehicle's resale value. This topic is discussed in more detail in the guide: Original used parts vs. car resale price – how not to lose money?, which helps you consciously plan repairs and upgrades with the future value of the car in mind.