2020–2023 Jeep Gladiator 3.6L V6 Alternator 42338 | 240A, 6-Groove
This new replacement alternator fits the 2020–2023 Jeep Gladiator 3.6L V6 in the configurations listed below.
Vehicle fitment
| Model years | Vehicle | Engine | Configuration |
|---|---|---|---|
| 2020, 2021, 2022, 2023 | Jeep Gladiator | 3.6L V6 | JT |
| 2018, 2019, 2020, 2021, 2022, 2023 | Jeep Wrangler | 3.6L V6 | JL |
| 2020, 2021, 2022, 2023 | Jeep Gladiator | 3.6L V6 | series: JT; fuel: GAS |
| 2018, 2019, 2020, 2021, 2022, 2023 | Jeep Wrangler | 3.6L V6 | series: JL; fuel: GAS |
Part numbers
Additional references: 42338, 21025, 21025N, 56029803AA, 421000-7231
What’s included
Includes one new alternator with pulley.
Specifications
- Output: 240 A
- Voltage: 12 V
- Pulley grooves: 6
- Pulley type: Decoupler
- Pulley diameter: 52 mm
- Rotation: Counterclockwise
- Regulator: External
- Plug clock position: 12 o’clock
Before ordering
Match the original alternator part number, amperage, electrical connector, mounting points and pulley with the listing. Check any equipment or production-date notes in the fitment table.
Installation tip: Disconnect the negative battery cable before replacement. Check the belt, tensioner and battery-cable connections, then verify charging operation after installation.
Need a match? Send your VIN and a photo of the original alternator label to our Auto Parts Desk.
Browse more replacement alternators or explore all auto parts.