Description
The NGK LZTR4AGP is a G-Power single platinum spark plug designed as an upgrade over standard nickel plugs. Featuring a fine-wire platinum center electrode, it delivers improved ignitability, better fuel efficiency, and longer service life while maintaining OE-level reliability.
This plug is commonly used in Chrysler, Dodge, and Jeep applications, including HEMI V8 engines and 2.4L 4-cylinder platforms.
Key Features
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Fine-wire platinum center electrode (0.6 mm) for improved spark efficiency
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Trapezoidal ground electrode enhances ignitability and combustion
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Longer lifespan than conventional nickel plugs
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98% copper core for superior heat dissipation
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Trivalent plating resists corrosion and seizing
- Cost-effective upgrade from standard plugs
Specifications
General
- Part Number: LZTR4AGP
- Stock Number: 5017
- Heat Range: 4 (hotter plug)
- Resistor: Yes (5k Ohm)
- Pre-Gap: 1.0 mm
Shell
- Thread Size: M14 x 1.25
- Seat Type: Tapered
- Reach: 25.0 mm
- Hex Size: 5/8" (16 mm)
- Terminal Type: Solid / Non-removable
Electrodes
- Center Electrode: Platinum (fine wire)
- Ground Electrode: Nickel (trapezoidal cut)
- Configuration: J-gap
- Projection: Long projection
Fitment Highlights
Chrysler / Dodge / Jeep (Common Applications)
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5.7L HEMI V8 engines
- Chrysler 300 (2005–2008)
- Dodge Charger, Magnum, Ram 1500/2500/3500 (2003–2008)
- Dodge Durango (2004–2008)
- Jeep Grand Cherokee / Commander (2005–2008)
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2.4L Inline-4 engines
- Chrysler PT Cruiser, Sebring, Voyager
- Dodge Caravan, Stratus
- Jeep Liberty, Wrangler (TJ)
Performance Notes
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Platinum upgrade: longer service intervals vs. nickel (~60k miles typical)
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Heat range 4: hotter plug, helps prevent fouling in lower-load engines
- Ideal for replacing OE nickel plugs with a performance upgrade
- Not a full replacement for double platinum or iridium in engines that require them
