TERREPOWER 42251 alternator for the 2019-2020 Volkswagen Jetta 4-cylinder 2.0L and other vehicles charges the battery and supplies electrical power while the engine runs. This remanufactured alternator is designed for dependable output through the vehicle's service life.
- 150-amp rating on a 12-volt DC system
- Decoupler pulley with 6 grooves for a serpentine belt
- Internal voltage regulator
- Air cooling with an internal fan
- Clockwise (right) rotation
Quick facts
- Part: TERREPOWER 42251 alternator
- Fits: 2019-2020 Volkswagen Jetta 4-cylinder 2.0L and other vehicles
- Condition: Remanufactured
A weak alternator can show up as a battery warning light, dim or flickering lights, or a battery that keeps going flat. Before you replace it, rule out a tired battery, corroded terminals and a worn belt, which can look much the same from the driver's seat.
Fits
It is also listed for a wide range of Volkswagen and Audi models, including the 2018-2020 Volkswagen Tiguan 4-cylinder 2.0L and the 2015-2018 Volkswagen Golf 4-cylinder 1.8L, so it also works as a VW Golf alternator. The quantity is one per car.
Specifications
Fit and size
- Quantity per vehicle: 1
- Voltage: 12 V DC
- Amperage rating: 150 A
- Rotation direction: Clockwise (Right)
- Pulley groove quantity: 6
Build and materials
- Condition: Remanufactured
- Regulator type: Internal
- Cooling method: Air
- Fan type: Internal
- Pulley: Decoupler, included, for a serpentine belt
- Ground type: Negative
- Country of origin: Mexico
In the box
One remanufactured alternator with its pulley.
Interchange: 0-125-716-009 · 0-125-716-010 · 06K-903-023D
This part cross-references / interchanges with the following part numbers:
0-125-716-009, 0-125-716-010, 06K-903-023D
Frequently Asked Questions
Is this the right VW Jetta alternator for a 2019-2020 Jetta 4-cylinder 2.0L?
Yes. TERREPOWER 42251 is listed for the 2019-2020 Volkswagen Jetta 4-cylinder 2.0L. If your car is another Volkswagen or Audi, look up its year and engine in the "Vehicles it fits" section.
Will a VW Tiguan alternator like this fit the 2018-2020 Tiguan 4-cylinder 2.0L?
Yes. TERREPOWER 42251 is listed for the 2018-2020 Volkswagen Tiguan 4-cylinder 2.0L, and that vehicle takes one alternator.
Does this alternator come with the pulley already on it?
Yes. This remanufactured alternator includes its decoupler pulley, which has 6 grooves for a serpentine belt.
What amperage is the 42251 alternator rated for?
It is rated at 150 amps on a 12-volt DC system, and it has an internal regulator and an internal fan with air cooling.
Does TERREPOWER 42251 replace the number 06K-903-023D?
Yes. 06K-903-023D is one of the numbers TERREPOWER 42251 replaces, along with 0-125-716-009 and 0-125-716-010.
