What battery does a 2021 Outback use?
Type LN2. No CCA is printed.
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In-depth guide
2021 Subaru Outback
2021 Outback battery type is LN2. The alternator is 12 V-150 A on the 2.5 L and 12 V-190 A on the 2.4 L.
| Item | Figure |
|---|---|
| Battery type | LN2. |
| Alternator, 2.5 L | 12 V-150 A. |
| Alternator, 2.4 L | 12 V-190 A. |
Source: owner's manual / last verified 2026-10-16 (Owner's manual publication A2600BE-B, file MSA5M2104B, copyright 2020, edited 2020/10/1. Subaru's manual index lists A2600BE-B as the 2021 Outback book. The same PDF also describes the Legacy. (opens in a new tab)).
Difficulty, time, and cost are estimates when this guide gives them. Torque is a cited figure, or it is left off.
Main source: Owner's manual publication A2600BE-B, file MSA5M2104B, copyright 2020, edited 2020/10/1. Subaru's manual index lists A2600BE-B as the 2021 Outback book. The same PDF also describes the Legacy. (opens in a new tab), Subaru Corporation, published 2020-10-01, read 2026-10-16.
Battery carrier
For lifting the battery. The table does not print a hold-down size.
| Item | Figure | Where it comes from |
|---|---|---|
| Battery type | LN2. | Electrical system |
| Alternator, 2.5 L | 12 V-150 A. | Electrical system |
| Alternator, 2.4 L | 12 V-190 A. | Electrical system |
That is the battery-type cell.
Those ratings are on the next lines and are not the battery.
None was printed.
No hold-down torque and no cable-removal order are printed, so none are added. Spark plugs are on the plug guide.
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Part
LN2 battery
The electrical-system table lists the type. It does not list a cold-cranking amp number.
2021 Outback battery type (opens in a new tab)Search Amazon.com (affiliate link) (opens in a new tab)As an Amazon Associate I earn from qualifying purchases.
Tool
Battery carrier
For lifting the battery. The table does not print a hold-down size.
Type LN2. No CCA is printed.
2.5 L: 12 V-150 A. 2.4 L: 12 V-190 A.
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These guides cover the same kind of work. Their numbers belong to those vehicles, not to this one.
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