Description
The Denso ZTJ16R10 Iridium Long Life Spark Plug is a premium OE-style replacement spark plug engineered for long-lasting performance and reliable ignition in modern automotive applications. Originally factory installed on a range of vehicles from manufacturers such as GM, Toyota, Honda, and Mitsubishi, this plug is built for consistent spark delivery, extended service life, and dependable operation under demanding driving conditions.
Its 0.7 mm iridium-tipped laser-welded fine-wire center electrode and platinum-tipped ground electrode help deliver strong ignitability, stable combustion, and long-term durability. The projected electrode design supports efficient spark exposure, while the purified alumina insulator provides excellent thermal conductivity and strength. Machine-rolled threads help reduce the risk of seizing or cross-threading during installation and removal, and the five-rib insulator helps prevent flashover. With an expected service life of 80,000 to 100,000 miles, this spark plug is an excellent choice for long-interval maintenance and dependable OE replacement performance.
Features
- Part number: 5090
- Plug type: ZTJ16R10
- Premium Denso Iridium Long Life spark plug
- OE-style replacement for long service life and consistent ignition performance
- 0.7 mm iridium-tipped laser-welded fine-wire center electrode
-
Platinum-tipped ground electrode for durability and extended wear resistance
- Fine-wire design promotes strong ignitability and stable combustion
- Factory-installed style spark plug used by major automakers
- 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
- Estimated longevity: 80,000-100,000 miles
- Warranty: 12 months
Specifications
Shell
- Thread diameter: 14 mm
- Thread pitch: 1.25 mm
- Seat type: Tapered
- Reach: 18 mm (0.709 in)
- Hex size: 5/8 in (16 mm)
- Terminal type: Solid
- Overall height: JIS
Electrical / Performance
- Gap: 0.039 in (1.0 mm)
- Resistor: Yes
- Resistor value: 5k Ohm
- Heat range: 16
Center Electrode
- Material: Iridium
- Type: Fine Wire
- Size: 0.55 mm
- Projection: Projected
Ground Electrode
- Material: Platinum
- Type: Standard
- Quantity: 1
Torque Specs
- Cast iron: 7-15 lb-ft
- Aluminum: 7-15 lb-ft
Vehicle Fitment
Buick
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LaCrosse — 2008-2009 — CX / CXL / CXS / Super
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Lucerne — 2010-2011 — CX / CXL / CXL Special Edition / Super
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Rainier — 2004-2005 — CXL / CXL Plus
-
Terraza — 2006-2007 — CX / CXL
Cadillac
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CTS — 2005-2007 — Base / V
-
Escalade — 2002-2014 — Base / Hybrid / Luxury / Platinum / Premium
-
Escalade ESV — 2003-2014 — Base / Luxury / Platinum / Premium
-
Escalade EXT — 2003-2013 — Base / Luxury / Premium
Chevrolet
-
Avalanche 1500 — 2002-2013 — Base / LS / LT / LTZ / North Face / On Road Edition / WBH / Z66 / Z71 / Black Diamond
-
Camaro — 1998-2015 — Base / Z28 / Z28 SS / LS / LT / SS / ZL1 / Z/28
-
Caprice PPV — 2011-2017
-
Colorado — 2009 / 2012 — LT / WT
-
Corvette — 1998-2013 — Base / Z06 / ZR1 / Grand Sport / 427 / 50th Anniversary / Indianapolis 500 Pace Car / Z06 Carbon
-
Express 1500 — 2007-2014 — Base / LS / LT
-
Express 2500 — 2003-2019 — Base / LS / LT
-
Express 3500 — 2003-2019 — Base / LS / LT
- H3 / H3T equivalents are listed under Hummer below
-
Impala — 2006-2011 — LS / LT / LTZ / Police / SS / 50th Anniversary Edition
-
Malibu — 2007-2010 — LS / LT / LTZ / Hybrid
-
Malibu Classic — 2008 — LS / LT
-
Malibu Maxx — 2006-2007 — LS / LT / LTZ / SS
-
Monte Carlo — 2006-2007 — LS / LT / LTZ / SS
-
Silverado 1500 — 2004-2014 — Base / LS / LT / LTZ / WT / Hybrid / XFE / SS / Z71 Off-Road
-
Silverado 1500 Classic — 2007 — Hybrid / LS / LT / SS / WT
-
Silverado 1500 HD — 2001-2006 — Base / LS / LT
-
Silverado 2500 — 2000-2004 — Base / LS / LT / WT
-
Silverado 2500 HD — 2001-2019 — Base / LS / LT / LTZ / WT / High Country
-
Silverado 2500 HD Classic — 2007 — LS / LT / WT
-
Silverado 3500 — 2001-2005 — Base / LS / LT
-
Silverado 3500 HD — 2006-2019 — LT / LTZ / WT / High Country
-
SSR — 2005-2006 — Base
-
SS — 2014-2017 — Base
-
Suburban 1500 — 2000-2014 — Base / LS / LT / LTZ / Z71
-
Suburban 2500 — 2001-2013 — Base / LS / LT
-
Suburban 3500 HD — 2016-2019 — LS / LT
-
Tahoe — 2000-2014 — Base / LS / LT / LTZ / PPV / SSV / Hybrid / Limited / Z71
-
Trailblazer — 2005-2009 — Base / LS / LT / SS
-
Trailblazer EXT — 2005 — LS / LT
-
Uplander — 2007-2008 — Base / LS / LT
Ford
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Mustang — 1994-1997 — Base / GT / GTS / SVT Cobra / SVT Cobra R
-
Taurus — 1993-1995 — GL / LX / SE / SHO
-
Thunderbird — 1996-1997 — LX
-
Windstar — 1995 — Base / GL / LX
GMC
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Canyon — 2009 / 2012 — SLE / SLT / WT
-
Envoy — 2005 — Denali / SLE / SLT
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Envoy XL — 2004-2005 — Denali / SLE / SLT
-
Envoy XUV — 2004-2005 — SLE / SLT
-
Savana 1500 — 2004-2017 — Base / LS / LT / SLE
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Savana 2500 — 2003-2019 — Base / LS / LT / SLE
-
Savana 3500 — 2003-2019 — Base / LS / LT / SLE
-
Sierra 1500 — 2000-2014 — Base / SL / SLE / SLT / WT / Denali / Hybrid / XFE / C3 / HT
-
Sierra 1500 Classic — 2007 — Denali / Hybrid / SL / SLE / SLT / WT
-
Sierra 1500 HD — 2001-2006 — SLE / SLT
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Sierra 2500 — 2000-2004 — Base / SL / SLE / SLT / WT
-
Sierra 2500 HD — 2001-2019 — Base / SLE / SLT / WT / Denali
-
Sierra 2500 HD Classic — 2007 — SL / SLE / SLT / WT
-
Sierra 3500 — 2001-2006 — Base / SL / SLE / SLT / WT
-
Sierra 3500 HD — 2007-2019 — Base / SLE / SLT / WT / Denali
-
Yukon — 2000-2014 — Denali / SLE / SLT / Hybrid / Denali Hybrid
-
Yukon XL 1500 — 2001-2014 — Denali / SLE / SLT
-
Yukon XL 2500 — 2000-2013 — SLE / SLT
Hummer
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H2 — 2004-2009 — Base
-
H3 — 2008-2010 — Base / Adventure / Alpha / Luxury / Championship Series / X
-
H3T — 2009-2010 — Base / Alpha
Isuzu
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Ascender — 2003-2005 — Base / Limited / LS / S
Mercury
-
Cougar — 1990 / 1994-1997 — LS / XR-7
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Sable — 1993-1995 — GS / LS / LTS
Pontiac
-
Firebird — 2000-2002 — Base / Formula / Trans Am
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G6 — 2006-2010 — Base / GT / GTP / GXP
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G8 — 2008-2009 — Base / GT / GXP
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GTO — 2004-2006 — Base
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Grand Prix — 2005-2008 — Base / GT / GTP / GXP
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Montana SV6 — 2006 — Base
Saab
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9-7x — 2005 — Arc / Linear
Saturn
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Aura — 2007-2008 — Green Line / XE / XR
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Vue — 2008-2009 — Green Line / Hybrid / Red Line / XE / XR