Smart Fortwo C451 M132 AMT Manual Gearbox 717481 717.481 A4513700301 WARRANTY

Listing details

The gearboxes are sold with a 90-day warranty! They were tested before removal and are in full working order.

Smart Fortwo C451 M132 AMT Manual Gearbox is an original, used manual transmission designed for petrol units in the Smart Fortwo C451 generation with the M132 engine. Thanks to its factory design and precise gear ratio selection, it ensures predictable vehicle behavior, proper dynamics, and stable operation of the drivetrain in daily use.

Specifications and technical data

• SKU: A4513700301
• Mark: Smart
• Condition: Used
• OEM Part Number: A4513700301
• Substitutable numbers: 4520003181, A4513700301, A 451 370 03 01, 4513700301
• Fuel type: Petrol
• Gearbox type: Manual
• Part type: Automatic Transmission
• Category: Automatic Transmission

As an item from the Automatic gearboxes group in the catalog, this manual transmission is a solution for drivers looking for a proven, original part for professional repair or replacement of a worn-out gearbox in their Smart.

The offered gearbox is designed to work with a petrol engine, which guarantees the compatibility of gear characteristics with the powertrain parameters and the correct operation of the entire drivetrain system.

Purpose and compatibility

The presented manual gearbox has been designed for use in the Smart Fortwo C451 with the M132 engine, running on petrol. This means that the transmission design, gear set, and mounting method are adapted to the architecture of this specific drivetrain, which facilitates installation and reduces the risk of fitment issues.

The manual transmission type allows for direct control over gear changes, which is particularly important for users who prefer precise, predictable drivetrain control and a simpler, more serviceable design compared to automatic solutions.

Technical characteristics of the manual gearbox

This gearbox belongs to the group of manual transmissions, where the driver independently selects the gear using the gear lever and clutch. This type of solution provides:

• direct transfer of torque from the engine to the wheels,
• the ability to optimally select the gear according to driving style and road conditions,
• a simpler control system compared to automatic transmissions,
• easier diagnostics and maintenance in workshops specializing in the Smart brand.

Adaptation to the petrol engine means that the gear set has been selected to keep the M132 unit in the optimal RPM range, which translates into reasonable fuel consumption and appropriate flexibility during city and suburban driving.

Practical application and benefits of installation

Using an original, used manual gearbox in a Smart Fortwo C451 allows for restoring the proper operation of the drivetrain after a failure or wear of the previous transmission. In practice, this means:

• stable gear shifting without jerking or unwanted noises (with proper installation and functional accessories),
• maintaining the factory vehicle handling characteristics,
• the possibility of economical repair compared to costly regeneration or purchasing a new gearbox.

The manual design is valued by many users for its operational predictability and lower system complexity, which in the long run can facilitate maintenance and reduce operating costs.

Why choose an original used manual gearbox

In the event of a transmission failure in a Smart Fortwo C451, many drivers consider regenerating the existing gearbox. However, it is worth considering the arguments in favor of choosing a complete, original used unit – the differences in costs, durability, and the risk of additional faults are discussed in detail in the article Manual gearbox failures in cars – why is an original used part a more sensible choice than regeneration?.

By choosing a factory manual gearbox designed for a petrol engine, you gain a component designed exactly for this model, which promotes proper cooperation with other drivetrain components and reduces the risk of problems resulting from incorrect part selection.

Expanding the scope of repairs within the drivetrain system

If you are planning a comprehensive repair or upgrade of the drivetrain area in your Smart and need other elements from the same group, such as additional transmissions, control elements, or related components, check the available parts in the Smart automatic gearboxes category.

This allows you to take care of the consistent technical condition of the entire system in one service stage, minimizing the risk of further vehicle downtime and making it easier to plan future inspections and repairs.