HYUNDAI 37300-3C125-SJ Alternator

( Manufacturer Part Number: 37300-3C125-SJ ), ( Part Type: Alternator ), ( Genuine Oem: Yes ), ( Manufacturer Warranty: 1 Year ), ( Fitment Type: Direct Replacement ), ( Replaces Part Number: 37300-3c120, 37300-3c150 )

Review HYUNDAI Genuine Alternator

The Hyundai 37300-3C125-SJ Alternator is a crucial component of your vehicle's electrical system. This alternator is specifically designed to fit Hyundai models and is engineered to deliver reliable and efficient power.

The alternator measures approximately 12.5 inches long, 7.3 inches wide, and 6.3 inches high, making it a standard size for many Hyundai vehicles. It is constructed with a robust housing made of aluminum, ensuring durability and longevity.

The alternator features a multi-plate, three-phase design that delivers a continuous output of 75 amps. This means it can effectively charge the battery while the vehicle is in operation and provide sufficient power for the electrical accessories.

The alternator comes with a built-in voltage regulator that maintains a consistent voltage level, preventing damage to the battery and other electrical components. The regulator ensures the battery is always charged to an optimal level, even under heavy load conditions.

The Hyundai 37300-3C125-SJ Alternator is also equipped with a diode that converts the alternating current (AC) produced during charging into direct current (DC) for the battery. This diode ensures the battery is always charged and prevents the reversal of current flow that may damage the alternator and other components.

The alternator is designed to fit securely in place with bolts and is easy to install. It comes with a wiring harness that connects to the vehicle's electrical system, making the installation process straightforward.

In summary, the Hyundai 37300-3C125-SJ Alternator is a high-performing and durable component that ensures your vehicle's electrical system is always functioning optimally. Its robust construction, efficient power delivery, and easy installation make it an excellent choice for Hyundai vehicle owners.

The Hyundai 37300-3C125-SJ alternator is a popular aftermarket option for vehicle owners looking to replace their original equipment alternator. Here are some pros and cons to consider before making a purchase.

1. High Performance: This alternator delivers a superior output of 135 amps, ensuring that your vehicle's electrical system is well-powered.

2. Durable Construction: The alternator features a robust design with a cast aluminum housing, ensuring long-lasting performance and reliability.

3. OE-Style Connectors: The alternator comes with OEM-style connectors, making the installation process easier and more straightforward.

4. Wide Compatibility: This alternator is compatible with a wide range of Hyundai and Kia models, making it a versatile option for many vehicle owners.

5. Competitive Pricing: Compared to other high-performance alternators, the Hyundai 37300-3C125-SJ alternator offers a competitive price point.

1. Potential for Noise: Some customers have reported that this alternator can be noisier than the original equipment alternator.

2. Vibration: A few customers have noted that the alternator may vibrate excessively, which could potentially lead to premature wear and tear.

3. Installation Challenges: Installing the alternator may require some modifications, such as adjusting the serpentine belt tension or the alternator bracket.

4. Short Warranty: The alternator comes with a relatively short warranty of 12 months or 12,000 miles, which may not be sufficient for some vehicle owners.

The Hyundai 37300-3C125-SJ alternator offers several benefits, including high performance, durable construction, and wide compatibility, making it an attractive option for many vehicle owners. However, potential drawbacks such as noise, vibration, installation challenges, and a short warranty should be carefully considered before making a purchase. Ultimately, if you're looking for a reliable and affordable high-performance alternator, this may be a good option for you, but it's essential to weigh the pros and cons carefully before making a decision.

If you're in the market for a new alternator and the Hyundai 37300-3C125-SJ alternator fits your vehicle, it's worth considering as an option. However, it's essential to ensure that you're comfortable with the potential drawbacks, such as noise and vibration, and that you're prepared for any installation challenges that may arise. Additionally, you may want to consider purchasing an extended warranty to provide additional peace of mind. Ultimately, it's essential to do your research and make an informed decision based on your specific needs and circumstances.

Details:

Electrical parts are not returnable. Parts must be resalable and in the original packaging. Genuine Hyundai Alternator 37300-3C125-SJ: Parts: To 12/10/2007. Shipping Carrier substitutions may be made at our determination in an attempt to reduce shipping cost the customer.

In stock orders ship within 24 hours.

part #: 373003c125 prices

• $139.97-$280.00

specifications altnagen:

• for makes: Hyundai
• mpn: 37300-3c125-sj
• part type: Alternator
• genuine oem: Yes
• manufacturer warranty: 1 Year
• fitment type: Direct Replacement
• replaces part number: 37300-3c120, 37300-3c150

shipping altnagen:

• class: Standard, Expedited, One-day
• type: Fixed
• transit: 5-9 Days
• service: Standard, Expedited, Overnight
• cost: $30.16

returns altnagen:

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

offer altnagen:

• sold: 0
• quantity: 1
• availability: In Stock
• started: July 27, 2025
• options: Ship-to-home

payments altnagen:

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

seller altnagen:

• city: Las Vegas, Nevada
• rating: 100.0%
• # reviews: 195

general altnagen:

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

Hyundai 37300-3C125 Is Similar To:

• 11311n Power Select For Hyundai Elantra Replacement Alternator (42.7% similar) Please for details. Protectorates. The offered shipping cost in listing applies only to 48 states. Q: what is the shipping cost. Q: is local pick-up available. Grab the best deal...(October 31st, 2018)
• 13887n Quality-built Alternator Hyundai 13887 (34.9% similar) This is not actual picture of unit...(December 15th, 2017)
• 210-0713 Denso Alternator Reman Fits Hyundai Genesis Coupe 042511195448 (30.4% similar) 0t r-spec coupe 2-DOOR, 8 coupe 2-DOOR, this part fits vehicles made in the following years 2010 , 2011 , 2012 , 2013 , 2014 , new or remanufactured, a dens alternator is quality component. 8 track coupe 2-DOOR, remanufactured dens alternators go through a grueling process. Got 'my ' and on ...(August 16th, 2018)
• 31-01754on Oem Oes For Kia Forte Soul Hyundai Elantra New Alternator (38.5% similar) 8l ENGINE 2014 - 2015 KIAFORTE2. ENGINE2012 - 2013 KIASOUL2. 8l ENGINE 2014 - 2016 HYUNDAIELANTRA2. ENGINE 2013 - 2014 HYUNDAIELANTRA coupe all model's 2013 2015 HYUNDAIELANTRA Gall model's 2014 2015 KIAFORTE1. 8l model's 2014 - 2016 HYUNDAIELANTRA1...(April 23rd, 2018)
• 37300-22200 Genuine Oem Alternator For Hyundai Accent (55.3% similar) Misuse or abuse. Parts used off-road or for racing purposes unless explicitly stated. Consequential damages due to failure of other parts. Manufactured to meet or exceed precise quality specifications...(May 28th, 2018)
• 373002b300 130177297lkq Kia Rio Hyundai Veloster Alternator Miles Oem (38.2% similar) No photos of the actual item are available...(June 24th, 2018)
• 373002b760 138042318lkq Hyundai Kia Soul Alternator Miles Oem Lkq (37.7% similar) 6l KIA soul 6L, w automatic start and stop feature is hyundai bolster turbo, id 373002B760 turbo includes r-spec, forte no photos of the actual item are available. 6l turbo KIA Rio w automatic engine stop and start, id 373002B760 donor vehicle part information year: 2013 make: hyundai model: ...(June 1st, 2018)
• 373002e270 130183290lkq Hyundai Elantra Sedan Alternator Mt Miles Oem (38.2% similar) ...(August 23rd, 2018)
• 373002g855 Hyundai 37300-2g855 Alternator (65.9% similar) ...(August 26th, 2017)
• 439385 Valeo Alternator Fits Hyundai Accent 3276424393852 (32.7% similar) Thanks again for trusting DI-auto to get you the right part as quickly possible. Vales alternators are designed to fulfill the ambition reduce emissions CO2 and particles fuel consumption...(February 24th, 2019)
• 686696005668 Marine Parts Distributors Alternator Dodge Stealth Fits Hyundai Sonata Mitsubishi (26.7% similar) Typically, orders placed before 5PM est are shipped the same day. 80 kg product notice as a parts distributor we mostly sell aftermarket any oem would be noted such. Marine parts distributors products, when properly installed, are warranted against defects in materials and workmanship to the ...(May 29th, 2018)