Will thay work in a 2010 Chevrolet Silverado 1500 4.8l?

Hello-- NGK has multiple grades of plugs that may fit your vehicle. We recommend you go to the NGK site at https://ngksparkplugs.com/en/part-finder to verify the applications that will fit your vehicle. This site will show you all of the available plugs to fit your vehicle and will also show you which grade plug is recommended for the best performance of your specific engine. Tim OverstockDirect

I have a boat with a 1989 gm 5.7 liter. will these fit? i can not look it up - sorry for the repetitive question.

I don’t know I put them in a 4.6 ford motor

Do these fit a 2004 deville ?

I'm not sure. Do look them up under your car's make, engine type, year, and model number, just to make sure.

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8 PCS * NEW * - NGK 3403 G-Power Platinum Alloy Spark Plug TR55GP

8 PCS * NEW * - NGK 3403 G-Power Platinum Alloy Spark Plug TR55GP

Product ID: 391198430

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Details

Brand
NGK
Core Material
Iridium
Top Material Type
Alloy Steel
Vehicle Service Type
Motorcycle
UPC
087295834039

⚡0.6mm Platinum Alloy Tip for max spark

🔥Patented Iridium Alloy (90% Ir) for durability

⏱️Quicker starts & improved fuel efficiency

Description

⚡ Ignite your drive with NGK’s platinum power – because every start counts!

COMPLETE 8 PACK VALUE - Get a full set of 8 plugs, perfect for comprehensive engine maintenance and upgrade.
ENDURING IRIDIUM CORE - 90% iridium alloy center electrode delivers unmatched durability under extreme heat.
FUEL SMART EFFICIENCY - Optimized design reduces voltage needs, boosting fuel economy and lowering emissions.
OEM GRADE RELIABILITY - Trusted original equipment manufacturer quality for seamless vehicle compatibility.
PRECISION SPARK TECHNOLOGY - Laser-welded platinum tip ensures consistent ignition and peak engine performance.

The NGK 3403 G-Power Platinum Alloy Spark Plug TR55GP is a premium 8-piece set featuring a patented 90% iridium alloy center electrode and a 0.6mm laser-welded platinum tip. Designed for OEM-level quality, these plugs enhance fuel efficiency, reduce emissions, and ensure quicker engine starts while maintaining durability under high heat conditions.

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Manufacturer	NGK
Brand	NGK
Product Dimensions	8.41 x 2.39 x 16.87 cm; 326.59 g
Item model number	TR55GP
Manufacturer Part Number	TR55GP
Position	Center
Manufacturer	NGK
Country of Origin	USA
Item Weight	327 g

8 PCS * NEW * - NGK 3403 G-Power Platinum Alloy Spark Plug TR55GP

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