SubaruForester2021 · Fifth generation
  1. Subaru Forester
  2. Specs
  3. Engine
  4. 2021

2021 Subaru Forester Engine

FB25D fb25d
Engines
2.5 liters H-4 182 hp
Engine 2
  • Engine labels on configurations2.5 liters H-4

Catalog dataManufacturer figures stored on configuration rows

FB25D · fb25d

Catalog engines

EngineCodeHPTorqueConfigs matched
FB25Dfb25d———
2.5 liters H-4—182 hp176 lb-ft5

Configurations

Catalog values in this table are the same across configurations.

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Catalog spark plugs

Catalog year/make/model rows for 2021 Subaru Forester.

Autolite

Double Platinum Spark Plug: Enhanced Durability & Performance, APP5683

MPN: APP5683

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Autolite Iridium

Iridium Ultra Fine Wire Spark Plug: Laser Welded for Precision, AI5683

MPN: AI5683

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Autolite Iridium

Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition, XP5683

MPN: XP5683

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DENSO

Iridium Long-Life Spark Plug: Super Ignition, OE Performance, FXE22HR11, 3442

MPN: 3442

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Catalog engine codes and configuration engine labels do not always match. Both are shown as stored — neither is rewritten.

Catalog fitment does not by itself prove OEM-equivalent compatibility.