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🏍️ Ignite your Harley’s soul with NGK Iridium precision!
NGK 6046 (now NGK 97637 DCPR7EIX) Iridium spark plugs are engineered specifically for Harley-Davidson Twin Cam and XL engines, featuring a durable iridium core and precise 12mm-19mm threading. As the world’s leading OEM spark plug supplier, NGK delivers unmatched ignition performance, longevity, and a perfect fit, packaged in a convenient 4-piece set for complete engine optimization.
| ASIN | B00MG79MX6 |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #38,796 in Automotive ( See Top 100 in Automotive ) #278 in Automotive Replacement Spark Plugs |
| Brand Name | NGK |
| Compatible with Vehicle Type | Harley-Davidson (Twin Cam and XL), based on the product title and bullet points, and Iridium Max, as per the spark plug type from external sources |
| Core Material | Iridium |
| Customer Reviews | 4.7 4.7 out of 5 stars (259) |
| Manufacturer | NGK Spark Plugs |
| Manufacturer Part Number | 97637 |
| Model Number | DCPR7EIX |
| OEM Equivalent Part Number | NGK 97637 |
| Thread Size | 12mm-19mm |
| Top Material Type | Iridium |
| UPC | 014575182115 |
A**R
Better performance!
Great spark plugs. They fit my Mercury 40 HP four stroke EFI outboard motor.
M**S
Worked perfectly
Perfect!
T**K
Fits 2010 Street Glide
Worked great on my Street Glide only needed 2 but they send 4
B**S
Spark plugs
I purchased for my motorcycle but only needed two. The motorcycle seems to run really good but I’ll know how reliable after I have more mileage on them. For now though, these are working really good!
B**Y
Good product
Work exactly as they should.
S**D
They did their job!
A little pricey but otherwise OK
A**R
Excelente producto buena marca
W**S
they work great
These were highly recommended by online harley forums. I gave it a shot and haven't looked back. 20k miles later they're still going strong. A little "pricey" but, in this case you get the quality you pay for and not just the name brand like HD. I have used NGK's in dirt bikes for years so it wasn't a hard sell. All the new iridium plugs are expensive so, the price really wasn't a big surprise. I don't have the fancy diagnostic equipment required to compare the performance of these to other plugs but, I know they work well in my Harley FLHTCU as well as two dirtbikes (4 and 2 stroke) that have seen hours and hours of abuse.
R**T
Upgrade from the OEM plugs. Pack of 4. Fast delivery. Recommended seller.
Trustpilot
3 weeks ago
3 weeks ago