SKU: 43715389556

NGK 6637 FITS: IX Iridium Spark Plug Box of 4 (BPR6EIX) Spark Plugs

$39.89 $44.32
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Description

NGK 6637 FITS: IX Iridium Spark Plug Box of 4 (BPR6EIX) Spark PlugsNGK 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

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
Shipping Notes
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 43715389556

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4.0 ★★★★★
Based on 653 reviews
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Product Reviews
M
Verified Purchase
Monroe
Massapequa, US
★★★★★ 5
Great quality
Style: Standard, Color: Forest Green
Very surprised at the quality of these headphones. They’re comfortable in the ear and have very clear sound quality and great volume. They’re easy to set up and the ear bud is just the right size to sit comfortably. Settings are easy to adjust and the battery life is great. I will say the color doesn’t match to the display image, they’re a lot darker green, but that’s not really an issue. I just wanted to get a colorful pair to make them distinct from others. These are a great budget ear bud!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
S
Verified Purchase
Steve Hall
Carnegie, US
★★★★★ 5
These Budget Earbuds Actually Impressed My Wife (and Our Wallet)
Style: Standard, Color: Ocean Blue
We’re retired and try to be smart with money, so when my wife wanted a pair of wireless earbuds for her daily walks and audiobook listening, I wasn’t about to drop $150+ on a big name brand. After researching, I took a chance on these TAGRY earbuds and I’m honestly glad I did. She’s been using them almost every day for a few months now, and they still work great. The battery life is legitimately impressive — the case shows the charge level with a little LED display, which is surprisingly handy, and we easily get several days of use before needing to recharge. The wireless charging is convenient too. Sound quality is clear and perfectly decent for the price — good enough for her favorite music, podcasts, and even taking phone calls in the house. They stay in her ears well during walks, and the IPX5 waterproof rating gives us peace of mind when it’s drizzly out. The only small complaint is that they’re not quite as comfortable for really long wear (she sometimes switches ears after a couple hours), and the bass isn’t super deep compared to premium models. But for everyday use, that’s a very minor gripe. Overall, these have been a solid, no-fuss purchase that delivers way more than we expected for the money. If you’re a senior, on a budget, or just don’t want to overpay for earbuds, these are worth trying. Hope this helps someone!
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Reviewed in the United States on May 25, 2026
D
Verified Purchase
Derrick Lopes
Bozeman, US
★★★★★ 5
Really great pair of headphones
Style: Standard, Color: Black
These headphones work really well. They charge up quickly and the battery lasts a long time. These are way better than my old pair that I replaced with these. Great price.
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Reviewed in the United States on May 23, 2026
M
Verified Purchase
Matthew
Lake Worth, US
★★★★★ 3
Good Wireless Earphones Option for Price
Style: Standard, Color: Black
Works well compared to similar products. For around two years I was using a similar, different brand of wireless earphones also purchased off of Amazon, and they worked okay. I had originally switched over to wireless because my old headphone jack finally stopped working, unfortunately; now, of course, my new phone doesn't even have a headphone jack in the first place. I started buying these when I was no longer able to purchase from the previous brand off of Amazon. They were both around the same price and looked relatively similar. After a few months of using these, I can say that these are better than my previous brand, which I will refer as P.B. for short moving forward. As an avid music listener, these get the job done. For starters, they pair to my phone much faster (3 seconds max) as opposed to P.B. (7-12 seconds), they're also much better at keeping debris, junk, and other foreign materials out of the inner parts; I'd have to buy new earphones from P.B. every 3-5 months for this very reason. Perhaps my biggest compliment is the fact that the interactive "buttons" on the top sides of these earphones are far less sensitive than P.B. I'm personally not a huge fan of these buttons in the first place, but I can confidently say that I've accidentally pressed those sensors on these earphones relatively far less (maybe 2 or 3 times a week) then P.B. (at least 10 times a week). The case is also pretty durable; if I were to have dropped P.B.'s case with the earphones inside, there would have been a 100% chance that they would have gone flying; these, however, from the few times I've dropped the case, have stayed inside the case, undamaged. Battery life for both is about the same (about 4-5 hours but haven't really noticed a whole lot), as is/was audio quality. Overall a good product for the price; my only complaint is with the occasional, accidental, button press, pausing my music, which can't be disabled as far as a know. Frustrating, as this was a problem that I had with P.B. as well, but not a deal breaker. For casual music listing, this shouldn't be a problem. Originally had to return my first pair for issues with the hinge on the case breaking, but was sent a new product at no cost and haven't had any problems with the new one. 10/10 for price, 8/10 for audio quality, and 7.5/10 for battery life. Update: after a few more months of further usage the earphones still function well and as intended. My only new complaint is regarding the charging case used for the earphones. Normally, you place the earphones in their respective charging slots, close the case, and done, that's it. That's all that needs to be done in order to unpair and charge your earphones. Unfortunately, as of recently, the case itself doesn't seem to be closing all the way anymore. I didn't even notice at first, since the case appears to still close as it used to, but the case now requires extra emphasis when closing to ensure proper charging. The battery power display on the front of the case will let you know if the case has closed all the way by displaying the "charging" animation for either/both of the earphones. I must admit, this is by far the only truly frustrating experience I've had with this product; if the case isn't properly closed, the earphones not only won't charge, but they'll continue to broadcast audio from your phone. A few times now I've attempted to play audio through my phone speaker, only to realize that one or both of my earphones aren't properly charging in their case. This is my replacement pair, which I received because of the hinge falling apart on my original pair; I've had this current set of earphones for around two months now, and just started having this problem with the case about a week ago. Very disappointed to have a problem this prominent only two months out. Right now the issue is 50/50, but if I put in the extra thought to ensure that the case is closed, that does seem to help quite a bit. Still leaving this as a positive review because at the end of the day the earphones still work just as well as when I received them, although it is disappointing that the case is now uncooperative half the time after two months of gentle/normal use. Perhaps a third-party "skin" for the case would help with this issue; if it persists I will consider that option. Wish I could rate 3.5/5 stars.
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Reviewed in the United States on March 24, 2026
J
Verified Purchase
Justin
Birmingham, US
★★★★★ 5
Great headphones
Color: Black
So far im really enjoying these headphones, for the price I paid these are amazing. Significantly better than the slightly cheaper bluetooth headphones I usually get, twice the volume, base and sound quality. Its very light weigh and comfortable to wear too. Battery also appears to be exceptional, ive used it for hours now and the battery is still nearly full. Downloading the app is essential, it dramatically helps with improving and customizing the sound to your personal preference, the apps easy to install and use so there's no reason not too. Assuming these last awhile, its easily 5 stars for the price alone.
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Reviewed in the United States on May 5, 2026

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