NGK® 3690 Spark Plug

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NGK Iridium IX Spark Plug

Manufacturer’s Warranty : 60 Days

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SKU NG3690
Brand NGK®
Part Name Spark Plug
Part # 3690
UPC # 00087295136904
Quantity Per Vehicle 8
Pack of 1
Condition New
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Product Description

NGK Spark Plugs (U.S.A.), Inc. is the largest OE supplier and manufacturer of spark plugs for domestic and import vehicles in North America. Its OE legacy, unsurpassed quality and leading vehicles in operation coverage reinforces NGK as The Ignition Specialist. With over 80 years of automotive expertise NGK has built a reputation for quality and reliability; manufacturing spark plugs for virtually every automotive, motorcycle, marine and small engine application. We are committed to be the premier partner with our customers, while maintaining original equipment standards for the highest durability and operational performance. With state-of-the-art manufacturing, inventory and distribution facilities in North America and across the globe, NGK is dedicated to providing customers with world-class products and services.

The Iridium fine wire center electrodes durability is six times harder than platinum. Iridium alloys extremely high melting point is perfect for todays engines. For even greater performance consider upgrading to a NGK RUTHENIUM HX plug.

NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability.

NGK Iridium IX plugs offer extreme ignitibility and exceptional anti-fouling. Tapered cut ground electrode provides improved starting, idling and throttle response.

Iridium IX Spark Plug

Stock Number - 3690
Part Number - Tr7ix
Resistance (Describes Measurement) - 5000
Ground Electrode Tip Design (Describes the configuration of the ground electrode tip) - Taper cut
Ground Configuration (Describes the configuration of the ground electrode or grounding method of the spark plug but not the quantity of ground electrodes as this is a separate category) - Standard
Ground Electrode Core Material (Describes Core Material) - Nickel
Electrical Terminal Type (Describes Type Of Terminal) - Non-removable nut
Center Electrode Core Material (Describes Material) - Copper
Center Electrode Tip Material (Describes Material) - Iridium
Gap Size (Describes Measurement) - .040
Ground Electrode Quantity (Describes Quantity) - 1
Hex Size (Describes Measurement Of Hex Portion) - 5/8
Insulator Height (Describes the height of the insulator of the spark plug as measured from the seat to the terminal) - 53.00
Manufacturer Heat Range (Describes Heat Range Number) - 7
Seat Type (Describes Seat Type) - Tapered
Reach (Describes Measurement of length of the spark plug metal body from seat portion to the end of spark plug threads also can be described as the cylinder head thickness. Can be expressed as both inches and or millimeters.) - .708
Thread Diameter (Describes Measurement) - 14.00
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vehicle fitment summary

BUICK LUCERNE 2009-08; CADILLAC DTS 2009-08, STS 2009-06, XLR 2009-06

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