NGK Iridium IX Spark Plug Box of 4 (WR5IX)
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
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.
- 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
- Outstanding acceleration, high fuel efficiency and durability
- Fine iridium tip ensures durable and consistent spark
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1994 | Dodge | Ram 3500 | Base |
| 1966-1974 | Ford | Bronco | Base |
| 1980-1986 | Ford | Bronco | Custom |
| 1985-1986 | Ford | Bronco | Eddie Bauer |
| 1980-1981 | Ford | Bronco | Ranger XLT |
| 1968-1969 | Ford | Bronco | Roadster |
| 1968-1973 | Ford | Bronco | Wagon |
| 1982-1983 | Ford | Bronco | XLS |
| 1984-1986 | Ford | Bronco | XLT |
| 1982-1983 | Ford | Bronco | XLT Lariat |
| 1955-1959 | Ford | Club | Base |
| 1962-1965,1967 | Ford | Club Wagon | Base |
| 1967 | Ford | Club Wagon | Custom |
| 1963,1967 | Ford | Club Wagon | Deluxe |
| 1955-1974 | Ford | Country Sedan | Base |
| 1955-1974 | Ford | Country Squire | Base |
| 1955-1960 | Ford | Courier Sedan Delivery | Base |
| 1957,1964-1972 | Ford | Custom | Base |
| 1958-1960 | Ford | Custom 300 | Base |
| 1964-1974 | Ford | Custom 500 | Base |
| 1955-1956 | Ford | Customline | Base |
| 1957-1958 | Ford | Del Rio Wagon | Base |
| 1969-1982 | Ford | E-100 Econoline | Base |
| 1975-1982 | Ford | E-100 Econoline | Chateau |
| 1969-1974 | Ford | E-100 Econoline | Club Wagon |
| 1975-1983 | Ford | E-100 Econoline | Custom |
| 1975-1978 | Ford | E-100 Econoline | Northland |
| 1983 | Ford | E-100 Econoline | XL |
| 1975-1982 | Ford | E-100 Econoline Club Wagon | Base |
| 1975-1982 | Ford | E-100 Econoline Club Wagon | Chateau |
| 1975-1983 | Ford | E-100 Econoline Club Wagon | Custom |
| 1975-1978 | Ford | E-100 Econoline Club Wagon | Northland |
| 1983 | Ford | E-100 Econoline Club Wagon | XL |
| 1975-1982,1984-1986 | Ford | E-150 Econoline | Base |
| 1975-1982 | Ford | E-150 Econoline | Chateau |
| 1975-1983 | Ford | E-150 Econoline | Custom |
| 1975-1978 | Ford | E-150 Econoline | Northland |
| 1983-1986 | Ford | E-150 Econoline | XL |
| 1975-1982,1984-1986 | Ford | E-150 Econoline Club Wagon | Base |
| 1975-1982 | Ford | E-150 Econoline Club Wagon | Chateau |
| 1975-1983 | Ford | E-150 Econoline Club Wagon | Custom |
| 1975-1978 | Ford | E-150 Econoline Club Wagon | Northland |
| 1983-1986 | Ford | E-150 Econoline Club Wagon | XL |
| 1984-1986 | Ford | E-150 Econoline Club Wagon | XLT |
| 1969-1974 | Ford | E-200 Econoline | Base |
| 1971-1972 | Ford | E-200 Econoline | Chateau Wagon |
| 1969-1974 | Ford | E-200 Econoline | Club Wagon |
| 1970-1974 | Ford | E-200 Econoline | Custom Wagon |
| 1975-1982,1984-1986 | Ford | E-250 Econoline | Base |
| 1975-1982 | Ford | E-250 Econoline | Chateau |
| 1975-1983 | Ford | E-250 Econoline | Custom |
| 1975-1978 | Ford | E-250 Econoline | Northland |
| 1983-1986 | Ford | E-250 Econoline | XL |
| 1977-1980,1984-1986 | Ford | E-250 Econoline Club Wagon | Base |
| 1977-1980 | Ford | E-250 Econoline Club Wagon | Chateau |
| 1977-1980,1983 | Ford | E-250 Econoline Club Wagon | Custom |
| 1977-1978 | Ford | E-250 Econoline Club Wagon | Northland |
| 1983-1986 | Ford | E-250 Econoline Club Wagon | XL |
| 1984-1986 | Ford | E-250 Econoline Club Wagon | XLT |
| 1969-1974 | Ford | E-300 Econoline | Base |
| 1970-1974 | Ford | E-300 Econoline | Chateau Wagon |
| 1969-1974 | Ford | E-300 Econoline | Club Wagon |
| 1971-1972 | Ford | E-300 Econoline | Custom Wagon |
| 1975-1982,1984-1986 | Ford | E-350 Econoline | Base |
| 1975-1982 | Ford | E-350 Econoline | Chateau |
| 1975-1983 | Ford | E-350 Econoline | Custom |
| 1975-1978 | Ford | E-350 Econoline | Northland |
| 1983-1986 | Ford | E-350 Econoline | XL |
| 1977-1982,1984-1986 | Ford | E-350 Econoline Club Wagon | Base |
| 1977-1982 | Ford | E-350 Econoline Club Wagon | Chateau |
| 1977-1983 | Ford | E-350 Econoline Club Wagon | Custom |
| 1977-1978 | Ford | E-350 Econoline Club Wagon | Northland |
| 1983-1986 | Ford | E-350 Econoline Club Wagon | XL |
| 1984-1986 | Ford | E-350 Econoline Club Wagon | XLT |
| 1961-1967 | Ford | Econoline | Base |
| 1961-1974,1976-1978,1983 | Ford | F-100 | Base |
| 1975-1982 | Ford | F-100 | Custom |
| 1975-1978 | Ford | F-100 | Northland |
| 1975-1981 | Ford | F-100 | Ranger |
| 1978-1981 | Ford | F-100 | Ranger Lariat |
| 1975-1981 | Ford | F-100 | Ranger XLT |
| 1982-1983 | Ford | F-100 | XL |
| 1982-1983 | Ford | F-100 | XLS |
| 1977 | Ford | F-100 | XLT |
| 1982-1983 | Ford | F-100 | XLT Lariat |
| 1976-1978,1983-1986 | Ford | F-150 | Base |
| 1975-1982 | Ford | F-150 | Custom |
| 1975-1978 | Ford | F-150 | Northland |
| 1975-1981 | Ford | F-150 | Ranger |
| 1978-1981 | Ford | F-150 | Ranger Lariat |
| 1975-1981 | Ford | F-150 | Ranger XLT |
| 1982-1986 | Ford | F-150 | XL |
| 1982-1983 | Ford | F-150 | XLS |
| 1977,1983-1984 | Ford | F-150 | XLT |
| 1982,1985-1986 | Ford | F-150 | XLT Lariat |
| 1961-1974,1976-1978,1983-1986 | Ford | F-250 | Base |
| 1975-1982 | Ford | F-250 | Custom |
| 1975-1978 | Ford | F-250 | Northland |
| 1975-1981 | Ford | F-250 | Ranger |
| 1978-1981 | Ford | F-250 | Ranger Lariat |
| 1975-1981 | Ford | F-250 | Ranger XLT |
| 1982-1986 | Ford | F-250 | XL |
| 1982-1983 | Ford | F-250 | XLS |
| 1977,1983-1984 | Ford | F-250 | XLT |
| 1982,1985-1986 | Ford | F-250 | XLT Lariat |
| 1961-1974,1976-1978,1983-1986 | Ford | F-350 | Base |
| 1975-1982 | Ford | F-350 | Custom |
| 1975-1978 | Ford | F-350 | Northland |
| 1975-1981 | Ford | F-350 | Ranger |
| 1978-1981 | Ford | F-350 | Ranger Lariat |
| 1975-1981 | Ford | F-350 | Ranger XLT |
| 1982-1986 | Ford | F-350 | XL |
| 1982-1983 | Ford | F-350 | XLS |
| 1977,1983-1984 | Ford | F-350 | XLT |
| 1982,1985-1986 | Ford | F-350 | XLT Lariat |
| 1975-1977 | Ford | F-500 | Custom |
| 1957-1962,1964-1970 | Ford | Fairlane | 500 |
| 1966-1967 | Ford | Fairlane | 500XL |
| 1955-1969 | Ford | Fairlane | Base |
| 1978-1982 | Ford | Fairmont | Base |
| 1978-1983 | Ford | Fairmont | Futura |
| 1981,1983 | Ford | Fairmont | S |
| 1960-1970 | Ford | Falcon | Base |
| 1962 | Ford | Falcon | Deluxe |
| 1963-1970 | Ford | Falcon | Futura |
| 1963-1965 | Ford | Falcon | Futura Sprint |
| 1961-1965 | Ford | Falcon Sedan Delivery | Base |
| 1959-1967 | Ford | Galaxie | Base |
| 1961 | Ford | Galaxie | Club Victoria |
| 1960 | Ford | Galaxie | Special |
| 1961 | Ford | Galaxie | Starliner |
| 1961 | Ford | Galaxie | Sunliner |
| 1961 | Ford | Galaxie | Town Victoria |
| 1968-1974 | Ford | Galaxie 500 | Base |
| 1968-1970 | Ford | Galaxie 500 | XL |
| 1972-1974 | Ford | Gran Torino | Base |
| 1973-1974 | Ford | Gran Torino | Brougham |
| 1974 | Ford | Gran Torino | Elite |
| 1972-1974 | Ford | Gran Torino | Sport |
| 1972-1974 | Ford | Gran Torino | Squire |
| 1975-1980 | Ford | Granada | Base |
| 1978-1980 | Ford | Granada | ESS |
| 1975-1980 | Ford | Granada | Ghia |
| 1981-1982 | Ford | Granada | GL |
| 1981-1982 | Ford | Granada | GLX |
| 1981-1982 | Ford | Granada | L |
| 1965-1974,1983 | Ford | LTD | Base |
| 1970-1974,1983 | Ford | LTD | Brougham |
| 1971,1973 | Ford | M-400 | Base |
| 1974 | Ford | M-450 | Base |
| 1955-1956 | Ford | Mainline | Base |
| 1970-1977 | Ford | Maverick | Base |
| 1975-1977 | Ford | Maverick | Grabber |
| 1964-1973,1979-1981 | Ford | Mustang | Base |
| 1970-1971 | Ford | Mustang | Boss 302 |
| 1979-1981 | Ford | Mustang | Ghia |
| 1982 | Ford | Mustang | GL |
| 1982 | Ford | Mustang | GLX |
| 1970-1973 | Ford | Mustang | Grande |
| 1982 | Ford | Mustang | L |
| 1970-1973 | Ford | Mustang | Mach 1 |
| 1965-1970 | Ford | Mustang | Shelby GT-350 |
| 1966 | Ford | Mustang | Shelby GT-350H |
| 1968-1970 | Ford | Mustang | Shelby GT-500 |
| 1968 | Ford | Mustang | Shelby GT-500KR |
| 1965-1966 | Ford | P-100 | Base |
| 1965-1974,1976 | Ford | P-350 | Base |
| 1975 | Ford | P-350 | Custom |
| 1975-1976 | Ford | P-400 | Base |
| 1975-1976 | Ford | P-400 | Custom |
| 1975-1977 | Ford | P-500 | Base |
| 1975-1977 | Ford | P-500 | Custom |
| 1956 | Ford | Park Lane Wagon | Base |
| 1971-1974 | Ford | Pinto | Base |
| 1955-1974 | Ford | Ranch Wagon | Base |
| 1970 | Ford | Ranch Wagon | Police Cruiser |
| 1967-1974 | Ford | Ranchero | 500 |
| 1967 | Ford | Ranchero | 500 XL |
| 1957-1971 | Ford | Ranchero | Base |
| 1966 | Ford | Ranchero | Custom |
| 1968-1974 | Ford | Ranchero | GT |
| 1970-1974 | Ford | Ranchero | Squire |
| 1955-1959 | Ford | Skyliner | Base |
| 1963-1964 | Ford | Sprint | Base |
| 1960 | Ford | Starliner | Base |
| 1955-1960 | Ford | Sunliner | Base |
| 1955-1973,1980-1982 | Ford | Thunderbird | Base |
| 1981-1982 | Ford | Thunderbird | Heritage |
| 1980 | Ford | Thunderbird | Silver Anniversary |
| 1980-1982 | Ford | Thunderbird | Town Landau |
| 1971 | Ford | Torino | 500 |
| 1968-1974 | Ford | Torino | Base |
| 1970-1971 | Ford | Torino | Brougham |
| 1969-1971 | Ford | Torino | Cobra |
| 1968-1971 | Ford | Torino | GT |
| 1969-1971 | Ford | Torino | Squire |
| 1970-1971 | Ford | Torino | Super Cobra Jet |
| 1955-1960 | Ford | Victoria | Base |
| 1952-1959 | Lincoln | Capri | Base |
| 1958-1972 | Lincoln | Continental | Base |
Our History
For 26 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.