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2021 Toyota 4runner Ignition Parts

11 parts fit your 2021 Toyota 4runner

NGK G-Power Platinum Spark Plug NGK 481-5018

Ngk

NGK G-Power Platinum Spark Plug NGK 481-5018

Part #: 5018

Fits 2021 Toyota 4runner

$12.99
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Spark Plug ACDelco 4-20

Acdelco

Spark Plug ACDelco 4-20

Part #: 20

Fits 2021 Toyota 4runner

$12.99
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Spark Plug Denso 735-4703

Denso

Spark Plug Denso 735-4703

Part #: 4703

Fits 2021 Toyota 4runner

$12.99
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NGK Laser Irid. Plug NGK 481-96779

Ngk

NGK Laser Irid. Plug NGK 481-96779

Part #: 96779

Fits 2021 Toyota 4runner

$13.08
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NGK Iridium IX Spark Plug NGK 481-4469

Ngk

NGK Iridium IX Spark Plug NGK 481-4469

Part #: 4469

Fits 2021 Toyota 4runner

$17.99
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Bosch OE Fine Wire Single Platinum Spark Plug Bosch 284-6713

Bosch

Bosch OE Fine Wire Single Platinum Spark Plug Bosch 284-6713

Part #: 6713

Fits 2021 Toyota 4runner

$18.99
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NGK Ruthenium HX High Ignitability Spark Plug NGK 481-96355

Ngk

NGK Ruthenium HX High Ignitability Spark Plug NGK 481-96355

Part #: 96355

Fits 2021 Toyota 4runner

$23.99
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Bosch OE Fine Wire Double Iridium Spark Plug Bosch 284-9609

Bosch

Bosch OE Fine Wire Double Iridium Spark Plug Bosch 284-9609

Part #: 9609

Fits 2021 Toyota 4runner

$27.99
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Bosch OE Fine Wire Double Platinum Spark Plug Bosch 284-8110

Bosch

Bosch OE Fine Wire Double Platinum Spark Plug Bosch 284-8110

Part #: 8110

Fits 2021 Toyota 4runner

$64.99
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Spark Plug Denso 735-3417

Denso

Spark Plug Denso 735-3417

Part #: 3417

Fits 2021 Toyota 4runner

$64.99
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Spark Plug Denso 735-5343

Denso

Spark Plug Denso 735-5343

Part #: 5343

Fits 2021 Toyota 4runner

$194.99
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Ignition on the 2021 Toyota 4runner: what to know

What it does. On the 2021 Toyota 4runner, this component is a replacement service part matched to your vehicle's year, make and model in the AutoParts.com fitment catalog.

Symptoms that point to it

  • New warning lights or trouble codes related to the affected system
  • Unusual noise, vibration or smell while driving
  • Visible wear, cracking, corrosion or fluid leaks on the old component

Service note. Compare the old component's part number and physical dimensions before fitting the replacement.

Fitment. All 11 parts listed here are matched to the 2021 Toyota 4runner in the AutoParts.com fitment catalog. Engine, sub-model and trim can narrow fitment further, so check those attributes on a part before ordering.

Price range. $12.99 to $194.99, supplied by AutoParts.com and subject to change.

Brands available. Ngk, Acdelco, Denso, Bosch.

Affiliate disclosure: PartsByVehicle.com earns a referral fee when you buy through links to AutoParts.com on this site. This does not change the price you pay. Orders, payment, shipping and returns are handled by the retailer.