BOSCH KX31Y4 Alternator 2.0L

( Brand: Bosch ), ( Manufacturer Part Number: KX31Y4 ), ( Part Type: Alternator ), ( Product Warranty: 12 Month Warranty ), ( Part Info: Alternator New ), ( Years: 2015 2014 2016 2017 2018 2013 2019 2020 15 14 16 17 18 13 19 20 ), ( Models: Cla250 Gla250 B250 ), ( Important: Please Read All Notes Before Making This Purchase ), ( Cs-sku: 400 )

Review BOSCH Alternator Mercedes 2.0l Cyl fits CLA250 GLA250 B250 2013–2020

The Bosch KX31Y4 is a premium alternator designed specifically for Mercedes-Benz models with a 2.0L 13-20 engine, including the CLA250, GLA250, and B250. This alternator is an original equipment replacement part, ensuring a perfect fit and reliable performance.

The Bosch KX31Y4 alternator boasts several advanced features that set it apart from other alternatives in the market. It boasts a robust and durable design, with a high-performance stator and rotor that deliver impressive power output. The alternator is engineered to meet the demanding power requirements of modern Mercedes-Benz vehicles, ensuring optimal battery charging and reliable starting.

The alternator is equipped with a diode design that features advanced technology, allowing it to convert electrical energy more efficiently. The diodes are designed to minimize power loss and improve overall system performance. This results in better fuel economy and extended battery life.

The Bosch KX31Y4 alternator is engineered to provide a long service life, with high-quality materials and precision manufacturing. It features a robust housing that protects against vibration and environmental stress, ensuring reliable operation even in the most challenging conditions. The alternator also comes with a convenient mounting bracket that makes installation quick and easy.

In addition, the Bosch KX31Y4 alternator is designed with safety in mind. It features a patented safety system that prevents the alternator from rotating when the engine is not running, reducing the risk of accidents and damage to the alternator or other components.

Overall, the Bosch KX31Y4 alternator is an excellent choice for Mercedes-Benz owners looking for a high-quality, reliable, and efficient replacement alternator. Its advanced features, durable design, and easy installation make it a top pick for those who demand the best from their vehicles.

The Bosch KX31Y4 is a popular aftermarket alternator option for Mercedes-Benz models with a 2.0L 4-cylinder engine, including the CLA250, GLA250, and B250. This alternator offers several advantages and disadvantages, which are essential to consider before making a purchase.

1. OE (Original Equipment) Quality: The Bosch KX31Y4 alternator is an original equipment supplier (OES) part, meaning it is manufactured to the same standards as the alternator that came with your Mercedes-Benz vehicle. This can lead to improved reliability and longevity.

2. High Power Output: The Bosch KX31Y4 alternator delivers a higher power output compared to some aftermarket alternatives. This can help ensure that your vehicle's battery stays charged effectively, especially during heavy electrical usage.

3. Easy Installation: The alternator comes with a detailed installation guide and all necessary mounting hardware, making the installation process relatively straightforward for most DIY enthusiasts.

4. Warranty: Bosch offers a 2-year/unlimited mileage warranty on the KX31Y4 alternator, providing peace of mind for consumers.

1. Cost: The Bosch KX31Y4 alternator tends to be more expensive than some aftermarket alternatives. However, the OE quality and high power output may justify the additional cost for some consumers.

2. Availability: This alternator may not be as readily available at local auto parts stores as some aftermarket options. It may need to be ordered online or from a specialty Mercedes-Benz dealer.

The Bosch KX31Y4 alternator is a high-quality, reliable option for Mercedes-Benz owners looking to replace their vehicle's faulty alternator. While it may be more expensive than some aftermarket alternatives, its OE quality, high power output, and ease of installation make it an attractive choice for those who prioritize performance and longevity.

If you are a Mercedes-Benz owner in need of a new alternator and are looking for a high-performance, reliable option, the Bosch KX31Y4 alternator is a solid choice. Its OE quality, high power output, and ease of installation make it a worthwhile investment for those who want the best for their vehicle.

Details:

Our new and remain starters alternators are 100% factory tested to ensure reliable performance, under extremes of heat, cold high demand. Alternator New. Fit Notes: German Built. Make model Years Engine, Mystical 2.0L 4 Cyl, Mystical 2.0L Cyl.

Our new and remain starters alternators are designed to perform equal or better than the original equipment parts, that they replace. Our new and remain starters alternators are designed to be identical in fit performance original equipment parts.

part #: kx31y4 price

• $471.01

specifications altnagen:

• for models: Cla250, Gla250, B250
• for makes: Mercedes
• for years: 2013-2020
• brand: Bosch
• mpn: Kx31y4
• part type: Alternator
• product warranty: 12 Month Warranty
• part info: Alternator New
• years: 2015 2014 2016 2017 2018 2013 2019 2020 15 14 16 17 18 13 19 20
• models: Cla250 Gla250 B250
• important: Please Read All Notes Before Making This Purchase
• cs-sku: 400

returns altnagen:

• paid by: Buyer
• policy: Returns Accepted
• time: 30 Days

general altnagen:

• condition: New
• Car Truck Parts Accessories > Starters, Alternators, ECUs Wiring > Alternators Generators

payments altnagen:

• wallet: Paypal
• other
• credit card: Visa

offer altnagen:

• quantity: 1
• options: Ship-to-home
• started: June 25, 2025
• sold: 0
• availability: In Stock

seller altnagen:

• # reviews: 50205
• city: Austell, Georgia
• rating: 95.4%

shipping altnagen:

• carrier: FedEx
• cost: $0.00
• class: Standard
• type: Fixed
• service: FedEx Ground or FedEx Home Delivery
• transit: 3-8 Days

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