Skip to content
CarCareTruthProducts · Ranked

2010-2024 Toyota 4Runner spark plug & gap

The exact spark plug your 4Runner takes, plus the gap and the change interval — cross-checked against two independent maker sources so you buy the right plug the first time.

Affiliate disclosure: CarCareTruth is reader-supported. As an Amazon Associate I earn from qualifying purchases. We may also earn commissions from other retailers linked on this page, at no extra cost to you. Affiliate revenue never influences our scores or rankings. Full disclosure

4L V6 · 2010-20241GR-FE

Spark plug part number

  • DensoSK20HR11(heat range 20 Denso scale)
  • NGKILFR6T11(heat range 6 NGK scale)

Confirmed from Denso + NGK · verified Jun 2026.

Gap

0.043 in (1.09 mm)

We don't stock a reviewed plug for this engine yet. Search the confirmed part number on Amazon — it's the safest way to land on the right plug.

Find Denso SK20HR11 on Amazon
Where this came from
  • DENSO Iridium application catalog (SK20HR11 OE iridium long-life plug for the Toyota 1GR-FE 4.0L V6)source
  • NGK.com ILFR6T11 application pagesource

Part number and gap confirmed against two independent maker sources — never changed by what an affiliate link pays us. Heat range is shown per brand on purpose: a Denso number and an NGK number don't mean the same thing, so never compare them directly. Your owner's manual is always the final word.