ROTATING ELECTRICAL 7497 Alternator Timberjack EC-1 EC-2 EC-3 M1992527 8MR2022K

( Brand: Rotating Electrical ), ( Manufacturer Part Number: 7497 ), ( Country Of Origin: China ), ( Vintage Part: Yes ), ( California Prop 65 Warning: Warning ), ( Type: Alternator ), ( Manufacturer Warranty: 1 Year ), ( Oe/oem Part Number: 300039800 ), ( Voltage: 12 V ), ( Amperage: 51 ), ( Features: Clockwise Rotation, Counterclockwise Rotation ), ( Universal Fitment: No )

Review ROTATING ELECTRICAL Alternator Timberjack Ec-1 Ec-2 Ec-3 fits 1968–1978

The Timberjack EC-1, EC-2, EC-3 bulldozers manufactured between 1968 and 1978, utilized a robust and reliable 7497 alternator to power their electrical systems. This alternator, with part number M1992527 and 8MR2022K as the Timberline part number, was a crucial component that ensured the smooth operation of the bulldozer's lights, electrical accessories, and charging of the battery.

The 7497 alternator is a rotating electrical device designed to convert mechanical energy into electrical energy. It features a three-phase, three-wire design, providing a consistent electrical output that powers the bulldozer's electrical system efficiently. The alternator's housing is made of durable cast iron, ensuring it withstands the demanding conditions of heavy-duty construction equipment.

The alternator's rotor is driven by the engine through a belt drive system, while the stator windings generate an electrical output. The alternator's brushes and commutator facilitate the transfer of electrical energy from the rotor to the electrical system. The brushes are made of high-quality graphite material, ensuring a long service life, and the commutator features precise machining for efficient energy transfer.

The 7497 alternator is equipped with various safety features, including a voltage regulator that maintains a consistent electrical output, preventing overcharging or undercharging of the battery. Additionally, the alternator's diode rectifier ensures that the electrical current flows in the correct direction, preventing damage to the electrical system.

The alternator's terminals are designed for easy access and maintenance, allowing for quick connection and disconnection of the electrical system. The alternator also comes with a convenient mounting bracket, ensuring secure and stable installation on the bulldozer.

The 7497 alternator is a high-performance component, delivering a consistent electrical output to power the bulldozer's electrical system efficiently. Its rugged design and reliable construction make it a trusted component for heavy-duty applications, ensuring the Timberjack EC-1, EC-2, EC-3 bulldozers remain operational in the most challenging conditions.

The Timberjack EC-1, EC-2, EC-3 bulldozers manufactured between 1968 and 1978, equipped with the 7497 alternator, have both advantages and disadvantages when it comes to purchasing a new or rebuilt unit. Here's a breakdown of each:

1. Availability: The Timberjack alternators are widely available in the aftermarket due to their popularity and long production run.

2. Compatibility: These alternators are specifically designed for the Timberjack bulldozers, ensuring a perfect fit and functional compatibility.

3. Cost-effective: Compared to buying a new alternator from the original equipment manufacturer (OEM), purchasing a rebuilt alternator can save significant costs.

4. Reliability: Rebuilt alternators undergo a thorough inspection, rebuilding process, and testing to ensure they meet or even exceed OEM standards.

1. Potential for counterfeit parts: Be cautious when purchasing rebuilt alternators from untrusted sources, as there is a risk of receiving counterfeit or subpar parts.

2. Unknown history: The condition and maintenance history of the alternator before it was rebuilt is not always known, which could impact its longevity.

3. Shipping and handling: If purchasing a rebuilt alternator from an external supplier, there might be additional costs associated with shipping and handling.

When deciding to purchase a rotating electrical 7497 alternator for a Timberjack EC-1, EC-2, or EC-3 bulldozer, it is essential to weigh the advantages and disadvantages carefully. While there are potential risks such as counterfeit parts or unknown history, the benefits, like availability, compatibility, cost-effectiveness, and reliability, often outweigh the drawbacks. To ensure the best possible outcome, consider purchasing a rebuilt alternator from a trusted and reputable supplier with a proven track record. This approach will help minimize the risks and maximize the benefits.

1. Research potential suppliers: Look for suppliers with a strong reputation, positive customer reviews, and a proven track record in the industry.

2. Ask for certifications: Ensure the supplier holds relevant certifications, such as ISO 9001, to demonstrate their commitment to quality and consistency.

3. Request documentation: Request detailed information about the rebuilding process, including the inspection and testing procedures, to help you make an informed decision.

4. Inquire about warranties: A reputable supplier should offer a warranty on their rebuilt alternators to provide peace of mind and protection against defects.

5. Compare prices: Compare prices from multiple suppliers to find the best deal while ensuring the quality of the alternator.

Details:

Manual or automatic. Any tampering, dismantling, painting, or otherwise altering the product results in termination of warranty. Applications: GlastronVarious1968 - 2016, Hysteric-4411972 1976, Jacuzzi Jet Stern DriveVarious1978 John Deere241970 Johnson4D2421973 MedalistVarious1973 Mustang8801973 1983, Rex Various model's 1985 Timberjack301968 1978, Timberjack EC-11968 Timberjack EC-21968 Timberjack EC-31968 Timberjack EC-41968 Timberjack-301968 Timberjack-401968 Timberjack-501968 Timberjack-701968 Timberjack Mine Jack1971 1972, -301968 1978. 8MR2022K MOTOROLA.

Specifications: : Alternator, OEM Replaces:Fleece Seville, voltage :12, Amps:51, condition: New, Fan Location:External, Regulator Location:Internal, Polarity:Negative, Notes:Battery Terminal 7:30. M1992527 CLARK. Pictures, Pictures are not always of the exact product.

specifications altnagen:

• for years: 1968-1978
• brand: Rotating Electrical
• mpn: 7497
• country of origin: China
• vintage part: Yes
• california prop 65 warning: Warning
• type: Alternator
• manufacturer warranty: 1 Year
• oe/oem part number: 300039800
• voltage: 12 V
• amperage: 51
• features: Clockwise Rotation, Counterclockwise Rotation
• universal fitment: No

returns altnagen:

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

payments altnagen:

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

general altnagen:

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

shipping altnagen:

• service: Expedited
• cost: $0.00
• type: Fixed
• transit: 3-9 Days
• class: Expedited

offer altnagen:

• options: Ship-to-home
• sold: 0
• started: February 25, 2026
• availability: In Stock

seller altnagen:

• # reviews: 8737
• city: Oklahoma City, Oklahoma
• rating: 97.7%

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