We remain fully operational. Our teams are working around the clock to ensure your deliveries continue safely.
DOWNLOAD THE APP
Customer Services
Copyright © 2025 Desertcart Holdings Limited
DOWNLOAD THE APP
⚡ Ignite your ride with precision and power — don’t get left behind!
Autolite Xtreme Sport Iridium Spark Plugs (XS4303) feature a 0.6mm fine wire center electrode and platinum sidewire technology, engineered for up to 26% faster starts and enhanced durability. Designed for vehicle-specific fit, these plugs deliver smooth acceleration and reliable performance, making them a top choice for motorcycle enthusiasts seeking a high-quality ignition upgrade.
| ASIN | B004SRM9O6 |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #940,352 in Automotive ( See Top 100 in Automotive ) #4,751 in Automotive Replacement Spark Plugs |
| Brand | Autolite Iridium Ultra |
| Core Material | Iridium |
| Customer Reviews | 4.5 4.5 out of 5 stars (99) |
| Date First Available | January 1, 2007 |
| Exterior | Chrome |
| Global Trade Identification Number | 00009100261922 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.96 ounces |
| Item model number | XS4303-4PK |
| Manufacturer | FRAM |
| Manufacturer Part Number | XS4303 |
| Model | XS4303-4PK |
| Position | Center |
| Product Dimensions | 3.8 x 1 x 1 inches |
| Thread Size | 0.6mm |
| Top Material Type | Iridium |
| UPC | 009100261922 |
| Vehicle Service Type | Motorcycle |
E**N
Good replacement
Worked as advertised, seems of good quality and it was a perfect fit. Durability yet to be determined.
A**R
Great for a Guzzi
I had no idea how these would work. I have a Moto Guzzi V7 and until recently there was no cross reference for another spark plug. These work outstandingly, no pre-combustion, smooth controlled acceleration. Really outstanding. Like having a new motorcyle, really.
B**T
Works as Intended
These spark plugs work well in the Suzuki ATV.
M**R
They fit
Value for the money
M**.
They work, but...
The electrodes on these are recessed, unlike NGKs. They work, but fuel economy and performance is slight sacrificed.
T**N
They seem to work
They spark sometimes
K**A
Price is good when on sale
Good for $4
J**T
Excellent
Works like a boss
D**G
Its never ran this good before. NGK were back firing and missing and they were brand new
Trustpilot
5 days ago
2 weeks ago