Description
The Denso FXE22HR-11 Iridium Long Life Spark Plug (Part Number 3442) is a premium replacement spark plug engineered for long-term durability, strong ignitability, and reliable OE-style performance. Featuring a 0.7 mm laser-welded fine-wire iridium center electrode and a fine-wire platinum ground electrode, this plug is built to deliver consistent spark performance, stable combustion, and extended service life in a wide range of late-model vehicles.
Originally used as a factory-installed spark plug by automakers such as GM, Toyota, Honda, and Mitsubishi, the FXE22HR-11 is designed for engines that require high-efficiency ignition and long maintenance intervals. Its projected electrode design helps support combustion efficiency, while the purified alumina insulator delivers excellent strength and thermal conductivity. Machine-rolled threads help reduce the chance of seizing or cross-threading during installation and removal, and the copper-glass seal provides a gas-tight bond for long-lasting reliability.
With an expected lifespan of 80,000 to 100,000 miles, this Denso iridium spark plug is an excellent choice for drivers seeking premium replacement performance, extended longevity, and dependable fitment.
Features
- Part Number: 3442
- Plug Type: FXE22HR-11
- Denso Iridium Long Life premium spark plug
- OE-style replacement for extended service intervals
- 0.7 mm iridium-tipped laser-welded fine-wire center electrode
- Fine-wire platinum ground electrode
- Projected electrode design for efficient ignition performance
- Machine-rolled threads help prevent seizing and cross-threading
- 100% pre-fired for quality assurance
- Purified alumina powder insulator for strength and thermal conductivity
- Five-rib insulator helps prevent flashover
- Copper-glass seal provides a gas-tight bond between center electrode and insulator
- Resistor type: Yes
- Resistor value: 5k Ohm
- Heat range: 22
- Gap: 0.043 in (1.1 mm)
- Thread diameter: 12 mm
- Thread pitch: 1.25 mm
- Seat type: Gasket
- Reach: 26.5 mm (1.04 in)
- Hex size: 9/16 in (14 mm)
- Terminal type: Solid
- Overall height: ISO
- Torque specification, cast iron: 11-18 lb-ft
- Torque specification, aluminum: 11-18 lb-ft
- Warranty: 12 Months
- Expected longevity: 80,000-100,000 miles
- Fitment: Automotive
Vehicle Fitment
INFINITI
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EX35 — 2009-2012 — Base / Journey
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FX35 — 2009-2012 — Base
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FX50 — 2009-2013 — Base
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G25 — 2011-2012 — Base / Journey / X
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G35 — 2007-2008 — Base / Journey / Sport / X
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JX35 — 2013 — Base
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M35 — 2009-2010 — Base / X
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M35h — 2012-2013 — Base
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M56 — 2011-2013 — Base / X
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Q50 — 2014-2018 — Base / Premium / Sport / Red Sport 400 / Hybrid Premium / Hybrid Sport / Hybrid Luxe / Pure
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Q70 — 2014-2019 — 3.7 / 5.6 / Hybrid / Luxe
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Q70L — 2015-2019 — 3.7 / 5.6 / Luxe
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QX56 — 2011-2013 — Base
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QX60 — 2014-2023 — Base / Pure / Luxe / Sensory / Autograph / Hybrid
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QX70 — 2014 — Base
-
QX80 — 2014-2023 — Base / Luxe / Limited / Premium Select / Sensory
Jaguar
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F-Type — 2014-2023 — Base / S / R / R-Dynamic / SVR / 400 Sport / British Design Edition / Checkered Flag / First Edition / Project 7
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XF — 2013-2015 — Base / 3.0L / 3.0L AWD / Premium / Portfolio / Sport / Supercharged
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XFR — 2013-2015 — Base
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XFR-S — 2013-2015 — Base
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XJ — 2012-2019 — Base / Supercharged / XJ50 / R-Sport
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XJ L — 2012-2019 — Portfolio / Supercharged / Supersport / Ultimate
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XJR — 2012-2017 — Base / L
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XJR575 — 2018-2019 — Base
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XK — 2013-2015 — Base / Touring
-
XKR — 2012-2015 — Base
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XKR-S — 2013-2015 — Base / GT
Land Rover
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LR4 — 2012-2013 — Base / HSE / HSE Lux
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Range Rover — 2012-2017 — Base / HSE / HSE Lux / Autobiography / Supercharged / SV Autobiography / Autobiography Black
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Range Rover Sport — 2012-2017 — Base / SE / HSE / HSE Lux / HSE Dynamic / HST / Autobiography / Supercharged / Supercharged Dynamic / SVR / GT Limited Edition
Mercedes-Benz
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C63 AMG — 2012-2015 — Base / Black Series
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CL63 AMG — 2009-2010
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CLK63 AMG — 2008 — Base / Black Series
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CLS63 AMG — 2009-2011
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E63 AMG — 2009-2011
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ML63 AMG — 2009-2011
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R63 AMG — 2007
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S63 AMG — 2009-2010
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SL63 AMG — 2011-2012
Nissan
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350Z — 2007-2009 — Base / Enthusiast / Grand Touring / Touring / Nismo
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Altima — 2013-2018 — Base / S / SL / SR / SV
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Altima Hybrid — 2008-2011
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Armada — 2017-2023 — S / SL / SV / Platinum / Platinum Reserve / Midnight Edition
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Frontier — 2021-2023 — S / SV / PRO-4X / PRO-X
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Kicks — 2022-2023 — S / SV / SR
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Maxima — 2014-2023 — S / SL / SR / SV / Platinum / Platinum Reserve / 40th Anniversary Edition
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Murano — 2014-2023 — S / SL / SV / LE / Platinum / Midnight Edition / CrossCabriolet / Hybrid variants
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NV2500 — 2018-2023 — S / SV / SL
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NV3500 — 2018-2023 — S / SV / SL
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Pathfinder — 2013-2023 — S / SV / SL / Platinum / Rock Creek / Hybrid variants
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Quest — 2013-2017 — S / SV / SL / LE / Platinum
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Rogue Sport — 2022 — S / SV / SL
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TITAN — 2017-2023 — S / SV / SL / PRO-4X / Platinum Reserve
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TITAN XD — 2016-2023 — S / SV / SL / PRO-4X / Platinum Reserve
Subaru
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Crosstrek — 2016-2023 — Base / Premium / Limited / Sport / Hybrid
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Forester — 2013-2023 — X / X Premium / X Limited / X Touring / XT Premium / XT Touring / 2.0XT Premium / 2.0XT Touring / 2.5i / 2.5i Premium / 2.5i Limited / 2.5i Touring / Base / Premium / Limited / Sport / Touring / Wilderness
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Impreza — 2012-2016 — Base / Premium / Limited / Sport Premium / Sport Limited
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Impreza WRX — 2012-2014 — Base / Premium / Limited
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Impreza WRX STI — 2012-2014 — Base / Limited
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Legacy — 2013-2023 — 2.5i / 2.5i Premium / 2.5i Limited / 2.5i Sport / 3.6R / 3.6R Limited / Base / Premium / Limited / Sport / Touring XT / Limited XT
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Outback — 2013-2023 — 2.5i / 2.5i Premium / 2.5i Limited / 2.5i Touring / 3.6R / 3.6R Limited / 3.6R Touring / Base / Premium / Limited / Touring / Limited XT / Touring XT / Onyx Edition / Onyx Edition XT / Wilderness
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XV Crosstrek — 2013-2015 — Premium / Limited / Hybrid / Hybrid Touring
