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NGK Iridium IX Spark Plug Box of 4 (YR55IX)

$56.00 AUD
Item is in stockHurry! Low inventoryItem is out of stock Item is unavailable
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Notes

SHIPPING - RETURNS - WARRANTY - CANCELLATION POLICY

*** Market Conditions after 2020 have changed the landscape of automotive parts. Although we try to stock 1000's of items in our multiple warehouse and use multiple distribution channels, having back-orders are unavoidable in today's market. If you are in need of a product quickly, we suggest email, message, or call us for availability so that we may explore your options.
Email: Sales@Speedzoneweb.com
Call: 407-846-8430
Text: 407-749-6314

Frequently Asked Questions


Brand: NGK
SKU: NGK7588
UPC: 87295175880
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.

This Part Fits:

Year Make Model Submodel
1975 Buick Apollo Base
1975 Buick Apollo SR
1975 Chevrolet Bel Air Base
1978 Chevrolet C10 Big Ten
1975,1977-1978 Chevrolet C10 Cheyenne
1975,1977-1978 Chevrolet C10 Custom Deluxe
1975,1977-1978 Chevrolet C10 Scottsdale
1975,1977-1978 Chevrolet C10 Silverado
1975,1977-1978 Chevrolet C10 Suburban Custom Deluxe
1975,1977-1978 Chevrolet C10 Suburban Scottsdale
1975,1977-1978 Chevrolet C10 Suburban Silverado
1975,1977-1978 Chevrolet C20 Cheyenne
1975,1977-1978 Chevrolet C20 Custom Deluxe
1975,1977-1978 Chevrolet C20 Scottsdale
1975,1977-1978 Chevrolet C20 Silverado
1975,1977-1978 Chevrolet C20 Suburban Custom Deluxe
1975,1977-1978 Chevrolet C20 Suburban Scottsdale
1975,1977 Chevrolet C20 Suburban Silverado
1975,1977-1978 Chevrolet C30 Cheyenne
1975,1977-1978 Chevrolet C30 Custom Deluxe
1975,1977-1978 Chevrolet C30 Scottsdale
1975,1977-1978 Chevrolet C30 Silverado
1975 Chevrolet Camaro Base
1975 Chevrolet Camaro LT
1975 Chevrolet Camaro RS
1975 Chevrolet Caprice Classic
1975 Chevrolet Caprice Classic Sport
1975 Chevrolet Caprice Estate Wagon
1975 Chevrolet Corvette Stingray
1975,1978 Chevrolet El Camino Base
1975 Chevrolet El Camino Classic
1978 Chevrolet El Camino Conquista
1975,1978 Chevrolet El Camino SS
1975-1978 Chevrolet G10 Beauville
1975-1978 Chevrolet G10 Chevy Van
1975-1978 Chevrolet G10 Sportvan
1974 Chevrolet G10 Van Base
1974 Chevrolet G10 Van Sportvan
1975-1978 Chevrolet G20 Beauville
1975-1978 Chevrolet G20 Chevy Van
1978 Chevrolet G20 Nomad
1975-1978 Chevrolet G20 Sportvan
1974 Chevrolet G20 Van Base
1974 Chevrolet G20 Van Sportvan
1975-1978 Chevrolet G30 Beauville
1975-1978 Chevrolet G30 Chevy Van
1975-1978 Chevrolet G30 Hi-Cube
1975-1978 Chevrolet G30 Sportvan
1974 Chevrolet G30 Van Base
1974 Chevrolet G30 Van Sportvan
1975 Chevrolet Impala Base
1975 Chevrolet Impala Custom
1975 Chevrolet Impala Sport
1975,1977-1978 Chevrolet K10 Cheyenne
1975,1977-1978 Chevrolet K10 Custom Deluxe
1975,1977-1978 Chevrolet K10 Scottsdale
1975,1977-1978 Chevrolet K10 Silverado
1975,1977-1978 Chevrolet K10 Suburban Custom Deluxe
1975,1977-1978 Chevrolet K10 Suburban Scottsdale
1975,1977 Chevrolet K10 Suburban Silverado
1975,1977-1978 Chevrolet K20 Cheyenne
1975,1977-1978 Chevrolet K20 Custom Deluxe
1975,1977-1978 Chevrolet K20 Scottsdale
1975,1977-1978 Chevrolet K20 Silverado
1975,1977-1978 Chevrolet K20 Suburban Custom Deluxe
1975,1977-1978 Chevrolet K20 Suburban Scottsdale
1975,1977 Chevrolet K20 Suburban Silverado
1977-1978 Chevrolet K30 Cheyenne
1977-1978 Chevrolet K30 Custom Deluxe
1977-1978 Chevrolet K30 Scottsdale
1977-1978 Chevrolet K30 Silverado
1975,1977-1978 Chevrolet K5 Blazer Cheyenne
1975,1977-1978 Chevrolet K5 Blazer Custom Deluxe
1978 Chevrolet K5 Blazer Silverado
1975 Chevrolet Laguna Base
1975 Chevrolet Laguna S3
1975 Chevrolet Malibu Base
1975 Chevrolet Malibu Classic
1975 Chevrolet Malibu Classic Estate
1975 Chevrolet Monte Carlo S
1975 Chevrolet Monza 2+2
1975 Chevrolet Monza S
1975 Chevrolet Nova Base
1975 Chevrolet Nova Custom
1975 Chevrolet Nova LN
1975 Chevrolet Nova Police
1975,1977 Chevrolet P10 Base
1975,1977 Chevrolet P10 Step-Van
1975,1977-1978 Chevrolet P20 Base
1975,1977-1978 Chevrolet P20 Step-Van
1975,1977-1978 Chevrolet P30 Base
1975,1977-1978 Chevrolet P30 Step-Van
1975,1977-1978 GMC C15 Base
1977-1978 GMC C15 Heavy Half
1975,1977-1978 GMC C15 High Sierra
1977 GMC C15 Indy Hauler
1975,1977-1978 GMC C15 Sierra Classic
1975,1977-1978 GMC C15 Sierra Grande
1978 GMC C15 Street Coupe
1975,1977-1978 GMC C15 Suburban Base
1975,1977-1978 GMC C15 Suburban High Sierra
1975,1977-1978 GMC C15 Suburban Sierra Classic
1975,1977-1978 GMC C15 Suburban Sierra Grande
1975,1977-1978 GMC C25 Base
1975,1977-1978 GMC C25 High Sierra
1975,1977-1978 GMC C25 Sierra Classic
1975,1977-1978 GMC C25 Sierra Grande
1975,1977-1978 GMC C25 Suburban Base
1975,1977-1978 GMC C25 Suburban High Sierra
1975,1977-1978 GMC C25 Suburban Sierra Classic
1975,1977-1978 GMC C25 Suburban Sierra Grande
1975,1977-1978 GMC C35 Base
1975,1977-1978 GMC C35 High Sierra
1975,1977-1978 GMC C35 Sierra Classic
1975,1977-1978 GMC C35 Sierra Grande
1978 GMC Caballero Base
1978 GMC Caballero Diablo
1978 GMC Caballero Laredo
1975,1977-1978 GMC G15 Rally
1975,1977-1978 GMC G15 Rally STX
1975,1977-1978 GMC G15 Vandura
1974 GMC G15/G1500 Van Rally
1974 GMC G15/G1500 Van Vandura
1975,1977-1978 GMC G25 Rally
1975,1977-1978 GMC G25 Rally STX
1975,1977-1978 GMC G25 Vandura
1974 GMC G25/G2500 Van Rally
1974 GMC G25/G2500 Van Vandura
1975,1977-1978 GMC G35 Magnavan
1977-1978 GMC G35 Rally
1977-1978 GMC G35 Rally Camper Special
1977-1978 GMC G35 Rally STX
1977-1978 GMC G35 Vandura
1977-1978 GMC G35 Vandura Special
1974 GMC G35/G3500 Van Base
1974 GMC G35/G3500 Van Rally
1974 GMC G35/G3500 Van Vandura
1975,1977-1978 GMC Jimmy Base
1975,1977-1978 GMC Jimmy High Sierra
1975,1977-1978 GMC Jimmy Sierra Classic
1975,1977-1978 GMC Jimmy Sierra Grande
1978 GMC Jimmy Street Coupe
1975,1977-1978 GMC K15 Base
1975,1977-1978 GMC K15 High Sierra
1977 GMC K15 Indy Hauler
1975,1977-1978 GMC K15 Sierra Classic
1975,1977-1978 GMC K15 Sierra Grande
1975,1977 GMC K15 Suburban Base
1975,1977 GMC K15 Suburban High Sierra
1975,1977 GMC K15 Suburban Sierra Classic
1975,1977 GMC K15 Suburban Sierra Grande
1975,1977-1978 GMC K25 Base
1975,1977-1978 GMC K25 High Sierra
1975,1977-1978 GMC K25 Sierra Classic
1975,1977-1978 GMC K25 Sierra Grande
1975,1977-1978 GMC K25 Suburban Base
1975,1977-1978 GMC K25 Suburban High Sierra
1975,1977-1978 GMC K25 Suburban Sierra Classic
1975,1977-1978 GMC K25 Suburban Sierra Grande
1977-1978 GMC K35 Base
1977-1978 GMC K35 High Sierra
1977-1978 GMC K35 Sierra Classic
1977-1978 GMC K35 Sierra Grande
1975 GMC P15 Base
1975 GMC P15 Value Van
1975,1977-1978 GMC P25 Base
1975,1977-1978 GMC P25 Value Van
1975,1977-1978 GMC P35 Base
1975,1977-1978 GMC P35 Value Van
1975-1977 GMC Sprint Base
1975-1977 GMC Sprint Classic
1975 GMC Sprint High Sierra
1976 GMC Sprint Sierra Madre Del Sur
1975-1976 GMC Sprint SP
1975 Oldsmobile Cutlass Base
1975 Oldsmobile Cutlass S
1975 Oldsmobile Cutlass Supreme Base
1975 Oldsmobile Omega Base
1975 Oldsmobile Omega Salon
1975 Pontiac Firebird Base
1975 Pontiac Firebird Esprit
1975 Pontiac Grand LeMans Base
1975 Pontiac LeMans Base
1975 Pontiac LeMans Sport
1975 Pontiac Ventura Base
1975 Pontiac Ventura Custom
1975 Pontiac Ventura S
1975 Pontiac Ventura SJ


Our History

For 23 years Speedzone Performance LLC has been providing aftermarket car parts to Central Floridians and 1000's of customers online. What makes us different than all the other places online? We have 3 actual brick and mortar locations where were serve customers daily and find new ways to provide support and assistance to the automotive community at large. From our in house SPDZ1 Brand, to our constantly growing in stock inventory, we strive to make our customer service and ease of purchase stand out from the rest! We are also one of the largest automotive part financing providers anywhere in the United States, and continue to provide more options for our customers every year. We love what we do, and it shows in every product we sell and every new customer who becomes a part of our Speedzone Family.

Our Florida Locations

Kissimmee • Orlando • Tampa

Testimonials

We let our reviews speak for themselves.

4.9 average
914 reviews

Kissimmee

Orlando

Tampa

Great service at a fair price. I highly recommend them for all your performance needs. They have the know how to complete that project.

Donald Berry

Happy Customer

Google Review

Dropped off my 2022 Subaru WRX for Exhaust, spoiler, aeroflow dynamic kit, and they killed it. Quality work and amazing customer service. Speedzone gets you right.

Edward Roldan

Happy Customer

Google Review

They gave me the best price I could find after shopping around for a while. They are well informed and familiar with the products they sell, great communication and quick responses. I would no doubt purchase from them again. Solid company. Recommended. A+

Paul K

A Month Ago

Google Review

Came based on a work buddies recommendation. I was late by 30 minutes, confused my appointment time. But, 10/10 would come back. Came for a Downpipe and midpipe install. Not only was the gentleman accommodating, He ran into some issues, staff helped me out and pointed me into the right direction and got me going! They got my business and wouldn’t go anywhere else again!

Kiyo Gallimore

Verified Customer

Google Review

They Take Great Care Of Their Customers and Their Rates Are Better Than The Competition! They Also Respond Quickly And Have A Great Assortment Of Parts!

Jad

6 months Ago

Google Review

Absolutely love the customer service that you get with Speedzone Performance! All my questions are always answered in such a timely manner and this a big PLUS because I live out of Florida and for them to be on top of answering all my questions in such a way means a lot. Thank you all for the amazing customer service.

Daisy Vargas

Verified Customer

Google Review

My favorite place to go for anything car related, they have anything you could imagine & more. The people who work here are the coolest and most helpful people I’ve yet to meet at a car shop. They also don’t try to force sales on you and they genuinely help you with what you’re looking for, 100/10 shop!

Stephanie Trinidad

Loyal Customer

Google Review

The best of best, they are so nicely and kind people, yankee and billy more than the ones that runs the store they are a friend to everyone who walks in the store, very patient gets everyone what they need, everything you ask them they’ll answer your questions the best as possible, I love shopping there. They have the best prices, anything as car need you’ll find it there big shout-out to Yankee for being an amazing person and most important as a friend!! I love Speedzone!

Jansel Castillo

Loyal Customer

Google Review