ToyotaSienna2021 · Fourth generation
  1. Toyota Sienna
  2. Specs
  3. Engine
  4. 2021

2021 Toyota Sienna Engine

A25A-FKS a25a-fks
Engines
2.5 liters I-4 189 hp
Engine 2
  • Engine labels on configurations2.5 liters I-4

Catalog dataManufacturer figures stored on configuration rows

A25A-FKS · a25a-fks

Catalog engines

EngineCodeHPTorqueConfigs matched
A25A-FKSa25a-fks———
2.5 liters I-4—189 hp176 lb-ft11

Configurations

Catalog values in this table are the same across configurations.

Compare two configurations

Catalog spark plugs

Catalog year/make/model rows for 2021 Toyota Sienna.

Autolite

Double Platinum Spark Plug: Enhanced Durability & Performance, APP5684

MPN: APP5684

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Autolite Iridium

Iridium Ultra Fine Wire Spark Plug: Laser Welded for Precision, AI5684

MPN: AI5684

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Autolite Iridium

Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition, XP5684

MPN: XP5684

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Champion

Iridium Spark Plug REA12WMPB - Maximum Performance & Longevity, 9410

MPN: 9410

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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.