NGK Nickel Spark Plug Box of 4 (R5674-10)

NGK Nickel Spark Plug Box of 4 (R5674-10)

Marsoni

M251S

$34.12

Get it in 3 business days with 1 day shipping. Friday, May 29

NGK Nickel Spark Plug Box of 4 (R5674-10)NGK Racing spark plugs are designed with extreme use in mind and meant to withstand the most grueling racing conditions. NGK Spark Plugs have been powering racing champions and can be found in every racing venue throughout the world. The center electrode of the NGK Racing spark plugs has special configurations and designs to ensure durability and ignitability. NGK Racing plugs bring ultra high performance in a variety of heat ranges. Special

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Set screws are poor quality and are sometimes powdercoated on the exposed threads. Leads to striped hex sockets and inability to tighten properly. Durable finish as evidenced by no visible damage after throwing parts across the shop in frustration. Ended up running self tapping screws thru parts to complete assembly.

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Reviewed in the United States on February 26, 2024

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Carl L. Bradley

Boise, US

★★★★★ 1

Kinda flimsy…

Thought the assembly was metal, it’s some kind of PVC.

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Reviewed in the United States on September 22, 2025

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DRJRRT

Bozeman, US

★★★★★ 5

Great references book.

Format: Hardcover

Excellent book for medical reference and refresh of knowledge.

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Reviewed in the United States on April 28, 2026

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Ray Schaar

San Leandro, US

★★★★★ 5

A Wonderful Update To A Great Old Reference Book!

Format: Hardcover

It's the Merck Manual! If you know medicine but are aware you don't know EVERYTHING about EVERYTHING! (Few if any do!) This is a wonderful reference. If you have no medical knowledge and think this will make you know what doctors know. Don't waste your money. You have to have a basic understanding for this to be helpful. This is a wonderful update to an old favorite.

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Reviewed in the United States on July 16, 2025