2016–2023 Toyota Tacoma 2.7L L4 Alternator 21017 | 100A, 7-Groove
$164.95
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2016–2023 Toyota Tacoma 2.7L L4 Alternator 21017 | 100A, 7-Groove
$164.95
This new replacement alternator fits the 2016–2023 Toyota Tacoma 2.7L L4 in the configurations listed below.
Vehicle fitment
| Model years | Vehicle | Engine | Configuration |
|---|---|---|---|
| 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023 | Toyota Tacoma | 2.7L L4 | From 08/2015 |
Part numbers
Additional references: 21017, 42151, 1042113770, MX1042113770, 270600C170
What’s included
Includes one new alternator with pulley.
Specifications
- Output: 100 A
- Voltage: 12 V
- Pulley grooves: 7
- Pulley type: Decoupler
- Pulley diameter: 53 mm
- Rotation: Clockwise
- Regulator: Internal
- Plug clock position: 11 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.
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