TYC SX-4777 Alternator Electrical Charging Starting 3.0L L6

( Brand: Tyc ), ( Manufacturer Part Number: SX-4777 ), ( Type: Alternator ), ( Manufacturer Warranty: Lifetime ), ( Ipn: C398 70-56 ), ( Placement On Vehicle: Electrical Charging Starting Alternator / Generator ), ( Compatible Year: 2013 2012 2011 ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement ), ( Bundle Description: 1 Pc Genuine Tyc Alternator )

Review TYC Alternator Bmw 3.0l L6 Electrical Charging Starting Sz fits 335IS 2011–2013

The Tyc SX-4777 alternator is an excellent replacement option for BMW 335is models produced between 2011 and 2013, equipped with a 3.0L L6 engine. This alternator is designed to provide efficient and reliable electrical charging and starting capabilities for your vehicle.

The SX-4777 alternator boasts a robust construction, featuring a durable cast aluminum housing that ensures a long service life. It is engineered to meet or exceed OEM specifications, ensuring a perfect fit and reliable performance. The alternator comes with a built-in voltage regulator, which maintains the optimal charging voltage, protecting the battery and other electrical components from damage.

This alternator is designed to deliver a steady and consistent power output, ensuring that your vehicle's electrical systems always have the required energy. It is capable of producing up to 90 amps of current, which makes it suitable for powering various electrical accessories and maintaining the battery charge during long journeys or idling periods.

The alternator comes with a set of mounting brackets and necessary hardware, ensuring a straightforward installation process. It is compatible with the factory wiring harness, which makes the installation even more convenient. The alternator also features a diagnostic connector, which allows for easy troubleshooting and fault code reading, ensuring that any potential issues can be identified and addressed promptly.

The SX-4777 alternator is engineered to operate quietly, even under heavy load conditions. It utilizes a double-ball bearing design, which minimizes vibrations and reduces noise levels, ensuring a comfortable driving experience. The alternator also features a high-output diode, which ensures efficient energy conversion and reduces power loss during charging.

In summary, the Tyc SX-4777 alternator is a high-quality and reliable replacement option for BMW 335is models produced between 2011 and 2013. It delivers efficient electrical charging and starting capabilities, robust construction, and quiet operation, making it an excellent choice for those seeking a reliable and long-lasting solution for their vehicle's electrical needs.

The BMW 335is 3.0L L6 models from 2011 to 2013 utilize the original equipment (OEM) alternator, which is a Bosch model numbered SZ 40 112 V. However, there are aftermarket alternatives, one of which is the Tyc SX-4777 alternator. Let's discuss its pros and cons to help you make an informed decision.

1. Lower Cost: The Tyc SX-4777 alternator is generally more affordable compared to the OEM Bosch SZ 40 112 V alternator. This can be a significant advantage for those looking to save on replacement costs.

2. Availability: Aftermarket alternators, such as the Tyc SX-4777, are often more widely available than OEM parts, making it easier to find a replacement when needed.

3. Durability: The Tyc SX-4777 alternator may offer improved durability due to the use of higher-quality materials or newer technology. This could potentially result in fewer replacement costs over the long term.

1. Compatibility: While the Tyc SX-4777 alternator is designed to fit the BMW 335is, there may be some slight differences in the electrical connections or mounting points compared to the OEM alternator. This could require additional work or the use of adapters during installation.

2. Warranty: Aftermarket parts, like the Tyc SX-4777 alternator, typically do not come with the same level of warranty coverage as OEM parts. This means that if there are any issues with the alternator, the customer may be responsible for additional costs.

3. Performance: While the Tyc SX-4777 alternator may offer similar performance to the OEM part, there is a chance that it may not deliver the exact same level of efficiency or reliability. This could result in slightly reduced battery charging or other issues.

In conclusion, the decision to use a Tyc SX-4777 alternator instead of the OEM Bosch SZ 40 112 V alternator for your BMW 335is depends on your priorities. If cost savings, availability, and potential durability improvements are important to you, then the aftermarket option could be a worthwhile consideration. However, if you value the peace of mind that comes with OEM parts and their warranty coverage, then it may be best to stick with the Bosch alternator. Ultimately, it's essential to carefully consider the pros and cons and weigh the potential benefits against the risks before making a decision.

Details:

TYC Alternator for 2011 - 2013 BMW 335IS 3.0L L6 Electrical Charging Starting sz: Status: In Stock.

part #: sx4777 prices

• $106.15-$260.49

specifications altnagen:

• for models: 335is
• for makes: Bmw
• for years: 2011-2013
• brand: Tyc
• mpn: Sx-4777
• type: Alternator
• manufacturer warranty: Lifetime
• ipn: C398 70-56
• placement on vehicle: Electrical Charging Starting Alternator / Generator
• compatible year: 2013 2012 2011
• core charge: Free No Core Charge
• fitment type: Direct Replacement
• bundle description: 1 Pc Genuine Tyc Alternator

returns altnagen:

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

offer altnagen:

• sold: 0
• quantity: 3
• availability: In Stock
• options: Ship-to-home
• started: October 10, 2025

general altnagen:

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

payments altnagen:

• other
• credit card: Visa
• wallet: Google-pay

shipping altnagen:

• service: Standard, Expedited
• class: Standard, Expedited
• cost: $0.00
• transit: 5-7 Days
• type: Fixed

seller altnagen:

• city: Indianapolis, Indiana
• # reviews: 578370
• rating: 98.9%

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