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NGK Iridium IX Spark Plug Box of 4 (XR5IX)

SKU: NGK7355

Spark Plug

NGK Iridium IX...

Ngk

Ngk

NGK Iridium IX Spark Plug Box of 4 (XR5IX)

SKU: NGK7355

Spark Plug

NGK Iridium IX...

A$106.17
Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.
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Description

The improved throttle response, superior anti-fouling and high-ignitability makes Iridium IX® the ideal choice for any performance enthusiast. Iridium's high melting point is perfectly suited to today's high-temperature engines, delivering outstanding acceleration, fuel efficiency and durability.

Product Overview

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 ignitability and exceptional anti-fouling. Tapered cut ground electrode provides improved starting, idling and throttle response. The Iridium fine wire center electrode's durability is six times harder than platinum. Iridium alloy's extremely high melting point is perfect for today's engines. For even greater performance consider upgrading to an NGK Ruthenium HX plug.


Features and Benefits

  • RECOMMENDED USAGE: Modified or high performance applications, or as an upgrade to OE nickel alloy spark plugs

Product Details

Center Electrode Core Material:Copper
Center Electrode Tip Material:Iridium
Description:NGK Iridium IX Spark Plug
Electrical Terminal Type:Non-Removable Nut
Ground Configuration:Standard
Ground Electrode Core Material:Nickel
Ground Electrode Quantity:1
Ground Electrode Tip Design:Taper Cut
Hex Size:13/16
Insulator Height:55.00
Manufacturer Heat Range:5
Part Number:XR5IX
Pre-Gap Size:.040
Reach:.375
Resistance:5000.0
Seat Type:Flat
Stock Number:7355
Thread Diameter:14.00

Application Summary

BUICK 1967-50; CAD 1966-53; CHEV 1970-62; CHRYS 1977-59; DODGE 1979-60; GMC 1968; INTL 1980-61; OLDS 1969-57; PLY 1978-60; PONT 1969-67, I/O - 1990-60 HARDIN, O/B - 1991-74 CLINTON, 1987-69 ESKA, 1984-81 EXPLORER, SEARS, 1981-70 WIZARD

Part Type

Spark Plug

Data: v4.2 - Upd: 2026-10-14 07:37:48

Features

  • Fine iridium tip ensures durable and consistent spark
  • Outstanding acceleration, high fuel efficiency and durability
  • RECOMMENDED USAGE: Modified or high performance applications, or as an upgrade to OE nickel alloy spark plugs
  • Trivalent metal plating for superior anti-corrosion and anti-seizing properties

Specifications

Center Electrode Core Material:
Copper
Center Electrode Tip Material:
Iridium
Description:
NGK Iridium IX Spark Plug
Electrical Terminal Type:
Non-Removable Nut
Ground Configuration:
Standard
Ground Electrode Core Material:
Nickel
Ground Electrode Quantity:
1
Ground Electrode Tip Design:
Taper Cut
Hex Size:
13/16
Insulator Height:
55.00
Manufacturer Heat Range:
5
Part Number:
XR5IX
Pre-Gap Size:
.040
Reach:
.375
Resistance:
5000.0
Seat Type:
Flat
Stock Number:
7355
Thread Diameter:
14.00

Reference Information

Brand Name/s Ngk
StreetFX SKU ngk7355
SFX Item ID 4149885
Supplier Item Code 4149885
Manufacturer SKU 7355
Manufacturer UPC 87295173558
Alternative References (XR5IX)

Compatibility

BUICK 1967-50; CAD 1966-53; CHEV 1970-62; CHRYS 1977-59; DODGE 1979-60; GMC 1968; INTL 1980-61; OLDS 1969-57; PLY 1978-60; PONT 1969-67, I/O - 1990-60 HARDIN, O/B - 1991-74 CLINTON, 1987-69 ESKA, 1984-81 EXPLORER, SEARS, 1981-70 WIZARD

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