NGK IX Iridium Spark Plug Box of 4 (BPR6EIX)
Specifications Part numbers, fitment codes and shipping
- Brand
- NGK
- Speedzone SKU
- NGK6637
- Manufacturer part number
- 6637
- UPC
- 87295166376
- Category
- Spark Plugs
- Shipping weight
- 0.6 lb
- Sold in case lots of
- 4
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 |
|---|---|---|---|
| 1967 | Alfa Romeo | 2600 | Berlina |
| 1967 | Alfa Romeo | 2600 | SZ |
| 1975-1977 | Alfa Romeo | Alfetta | GT |
| 1975-1977 | Alfa Romeo | Alfetta | Sport |
| 1981-1986 | Alfa Romeo | GTV-6 | 2.5 |
| 1987-1989 | Alfa Romeo | Milano | Gold |
| 1987-1989 | Alfa Romeo | Milano | Platinum |
| 1987 | Alfa Romeo | Milano | Silver |
| 1971-1975 | Alfa Romeo | Montreal | Base |
| 1978-1979 | Alfa Romeo | Sport | Base |
| 1977-1979 | Alfa Romeo | Sprint | Veloce |
| 2007-2008 | Arctic Cat | AC 120 Sno Pro | Base |
| 2006 | Arctic Cat | F120 | Base |
| 2020 | Arctic Cat | Prowler Pro | Base |
| 2020 | Arctic Cat | Prowler Pro Crew | Base |
| 2000-2001 | Arctic Cat | Z 120 | Base |
| 2001 | Arctic Cat | Z 120 Sno Pro | Base |
| 2002-2005 | Arctic Cat | ZR 120 | Base |
| 1958-1963 | Aston Martin | DB4 | Base |
| 1960-1963 | Aston Martin | DB4 | GT |
| 1962-1963 | Aston Martin | DB4 | Vantage |
| 1960-1963 | Aston Martin | DB4 | Zagato |
| 1963-1965 | Aston Martin | DB5 | Base |
| 1965 | Aston Martin | DB5 | Radford |
| 1964-1965 | Aston Martin | DB5 | Vantage |
| 1965 | Aston Martin | DB5 | Volante |
| 1965-1970 | Aston Martin | DB6 | Base |
| 1965-1970 | Aston Martin | DB6 | Radford |
| 1965-1969 | Aston Martin | DB6 | Vantage |
| 1965-1970 | Aston Martin | DB6 | Volante |
| 1967-1971 | Aston Martin | DBS | Base |
| 1970 | Aston Martin | DBS | V-8 |
| 1967-1971 | Aston Martin | DBS | Vantage |
| 1977-1978 | Aston Martin | Lagonda | Base |
| 1972-1978 | Aston Martin | V-8 | Base |
| 1977-1978,1982 | Aston Martin | V-8 | Vantage |
| 1978,1982 | Aston Martin | V-8 | Volante |
| 1972-1974 | Aston Martin | Vantage | Base |
| 1969-1971 | Audi | 100 Series | LS |
| 1980-1983 | Audi | 4000 | Base |
| 1982-1983 | Audi | 4000 | GT |
| 1982-1983 | Audi | 4000 | S |
| 1986-1987 | Audi | 4000 Quattro | CS |
| 1978-1983 | Audi | 5000 | Base |
| 1986-1988 | Audi | 5000 | CS |
| 1979-1983,1985-1987 | Audi | 5000 | S |
| 1980-1983 | Audi | 5000 | S Turbo |
| 1986 | Audi | 5000 Quattro | CS |
| 1981-1985 | Audi | Coupe | Base |
| 1986-1987 | Audi | Coupe | GT |
| 1969-1972 | Audi | Super 90 | Base |
| 1968-1972 | Austin | America | Base |
| 1973-1975 | Austin | Marina | Base |
| 1973-1975 | Austin | Marina | GT |
| 1960-1966 | Austin | Mini | Base |
| 1960-1966 | Austin | Mini 850 | Base |
| 1962-1969 | Austin | Mini Cooper | Base |
| 1964-1965 | Austin | Mini Cooper | S |
| 1959-1967 | Austin Healey | 3000 | Base |
| 1962-1967 | Austin Healey | Sprite | Base |
| 1968-1970 | Austin Healey | Sprite | MK IV |
| 1984-1989 | Bertone | X-1/9 | Base |
| 1964-1971 | BMW | 1600 | Base |
| 1968-1971 | BMW | 1600 | Cabriolet |
| 1971 | BMW | 1600 | Touring |
| 1966-1971 | BMW | 1600-2 | Base |
| 1966-1968 | BMW | 1600ti | Base |
| 1967-1971 | BMW | 1602 | Base |
| 1968-1971 | BMW | 1800 | Base |
| 1971 | BMW | 1800 | Touring |
| 1971 | BMW | 1802 | Base |
| 1966-1972 | BMW | 2000 | Base |
| 1971-1972 | BMW | 2000 | Touring |
| 1968-1969 | BMW | 2000c | Base |
| 1968-1969 | BMW | 2000cs | Base |
| 1968-1971 | BMW | 2000ti | Base |
| 1968-1971 | BMW | 2000ti | Lux |
| 1969-1972 | BMW | 2000tii | Base |
| 1971-1972 | BMW | 2000tii | Touring |
| 1966-1976 | BMW | 2002 | Base |
| 1971-1974 | BMW | 2002 | Cabriolet |
| 1973-1974 | BMW | 2002 | Turbo |
| 1968-1971 | BMW | 2002ti | Base |
| 1971-1974 | BMW | 2002tii | Base |
| 1968-1971 | BMW | 2800CS | Base |
| 1983-1984,1991 | BMW | R100 | Base |
| 1976-1978 | BMW | R100/7 | Base |
| 1980-1984 | BMW | R100CS | Base |
| 1987-1995 | BMW | R100GS | Base |
| 1994-1995 | BMW | R100GS Paris-Dakar | Base |
| 1992-1995 | BMW | R100R | Base |
| 1988-1993 | BMW | R100RS | Base |
| 1988-1995 | BMW | R100RT | Base |
| 1981-1984 | BMW | R100T | Base |
| 1969-1973 | BMW | R75/5 | Base |
| 1973-1976 | BMW | R75/6 | Base |
| 1976-1977 | BMW | R75/7 | Base |
| 1985-1987 | BMW | R80 | Base |
| 1976-1984 | BMW | R80/7 | Base |
| 1980-1986 | BMW | R80G/S | Base |
| 1992-1994 | BMW | R80R | Base |
| 1982-1987 | BMW | R80RT | Base |
| 1982-1984 | BMW | R80ST | Base |
| 1973-1976 | BMW | R90/6 | Base |
| 1973-1976 | BMW | R90S | Base |
| 1976-1979 | Buick | Opel | Base |
| 1977-1979 | Buick | Opel | Deluxe |
| 1978-1979 | Buick | Opel | Sport |
| 1971-1975 | Citroen | SM | Base |
| 1971-1980 | Dodge | Colt | Base |
| 1976-1977 | Dodge | Colt | Carousel |
| 1977-1980 | Dodge | Colt | Custom |
| 1973-1977 | Dodge | Colt | GT |
| 1990-1998 | Eagle | Talon | TSi |
| 1967-1975 | Fiat | 124 | Base |
| 1968-1981 | Fiat | 124 | Spider |
| 1971-1979 | Fiat | 128 | Base |
| 1976-1977 | Fiat | 128 | Custom |
| 1973-1975 | Fiat | 128 | SL |
| 1975-1978 | Fiat | 131 | Base |
| 1979-1981 | Fiat | Brava | Base |
| 1979-1982 | Fiat | Strada | Base |
| 1979-1982 | Fiat | Strada | Custom |
| 1974-1983 | Fiat | X-1/9 | Base |
| 2004-2005 | Gas Gas | Pampera 125 | Base |
| 2004-2005 | Gas Gas | Pampera 280 | Base |
| 2003-2005 | Gas Gas | Wild HP 240 | Base |
| 1969-1972 | Honda | 600 | Base |
| 1975-1979 | Honda | Civic | 1200 |
| 1973-1974 | Honda | Civic | Base |
| 1975 | Honda | Civic | CVCC |
| 1973-1974 | Jaguar | XJ12 | Base |
| 1975-1976 | Jaguar | XJ12 | C |
| 1975-1979 | Jaguar | XJ12 | L |
| 1976,1979 | Jaguar | XJS | Base |
| 1971-1974 | Jaguar | XKE | Base |
| 1972-1975 | Jensen | Healey | Base |
| 1976 | Jensen | Healey | GT |
| 2005 | Kawasaki | KAF400 Mule 610 4x4 | Base |
| 1979-1982 | Kawasaki | KZ1300 | Base |
| 1980 | Kawasaki | KZ1300B | Base |
| 1983-1988 | Kawasaki | ZN1300 Voyager | Base |
| 1976-1979,1981 | Lancia | Beta | Base |
| 1976-1979 | Lancia | Beta | HPE |
| 1979,1981-1982 | Lancia | Zagato | Base |
| 1998 | Land Rover | Discovery | 50th Anniversary Edition |
| 1994-1995 | Land Rover | Discovery | Base |
| 1998 | Land Rover | Discovery | LE |
| 1997-1998 | Land Rover | Discovery | LSE |
| 1996-1997,1999 | Land Rover | Discovery | SD |
| 1996-1997 | Land Rover | Discovery | SE |
| 1996-1997 | Land Rover | Discovery | SE7 |
| 1997 | Land Rover | Discovery | XD |
| 1976-1979 | Lotus | Eclat | Base |
| 1976-1979 | Lotus | Eclat | Sprint |
| 1958-1966 | Lotus | Elite | Base |
| 1960-1961 | Lotus | Elite | S2 |
| 1976-1979,1983-1984,1988 | Lotus | Esprit | Base |
| 1985-1987 | Lotus | Esprit | S3 |
| 1994-1995 | Lotus | Esprit | S4 |
| 1995 | Lotus | Esprit | S4s |
| 1982-1988 | Lotus | Esprit | Turbo |
| 1992-1993 | Lotus | Esprit | Turbo SE |
| 1962-1975 | Lotus | Seven | Base |
| 1962-1968 | Lotus | Super Seven | Base |
| 1971-1983 | Maserati | Bora | Base |
| 1967-1973 | Maserati | Ghibli | Base |
| 1969-1974 | Maserati | Indy | Base |
| 1974-1979 | Maserati | Khamsin | Base |
| 1972-1979 | Maserati | Merak | Base |
| 1980-1982 | Maserati | Merak | SS |
| 1967-1971 | Maserati | Mexico | Base |
| 1968-1969,1979-1986 | Maserati | Quattroporte | Base |
| 1970-1971 | Mazda | 1800 | Base |
| 1970-1971 | Mazda | 616 | Base |
| 1972 | Mazda | 618 | Base |
| 1986-1987 | Mazda | 626 | GT |
| 1972-1977 | Mazda | 808 | Base |
| 1972-1976 | Mazda | B1600 | Base |
| 1977-1978 | Mazda | B1800 | Base |
| 1978 | Mazda | GLC | Base |
| 1977-1978 | Mazda | GLC | DX |
| 1977 | Mazda | GLC | LX |
| 1978 | Mazda | GLC | Sport |
| 1976-1977 | Mazda | Mizer | Base |
| 1966-1967 | Mercedes-Benz | 200 | Base |
| 1968-1973 | Mercedes-Benz | 220 | Base |
| 1966-1969 | Mercedes-Benz | 230 | Base |
| 1966-1967 | Mercedes-Benz | 230S | Base |
| 1963-1966 | Mercedes-Benz | 230SL | Base |
| 1968-1972 | Mercedes-Benz | 250 | Base |
| 1970-1972 | Mercedes-Benz | 250C | Base |
| 1966-1967 | Mercedes-Benz | 250S | Base |
| 1966-1967 | Mercedes-Benz | 250SE | Base |
| 1967 | Mercedes-Benz | 250SL | Base |
| 1973-1974 | Mercedes-Benz | 280 | Base |
| 1973-1974 | Mercedes-Benz | 280C | Base |
| 1968-1971 | Mercedes-Benz | 280S | Base |
| 1972-1973 | Mercedes-Benz | 280SE | 4.5 |
| 1968-1972 | Mercedes-Benz | 280SE | Base |
Full details on shipping times, returns, warranty and cancellations are on our policy page.
Market conditions after 2020 have changed the landscape of automotive parts. Although we stock thousands of items across multiple warehouses and distribution channels, back-orders are unavoidable in today's market. If you need a product quickly, email, message or call us to check availability so we can explore your options.
Email Sales@Speedzoneweb.com
Call 407-846-8430
Text 407-749-6314
Answers to common questions are on our FAQ page.
Under the Influence by Speedzone
Product approval required
Want to promote this product?
Approved Speedzone creators can request access to promote this item.
Request to Promote This Product
Parts Financing
Product Request
Return Policy
Wheel & Tire Builder
Discount Codes