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⚡ Ignite your engine’s potential with Bosch’s double iridium spark plugs—where precision meets longevity.
Bosch 9603 OE Fine Wire Double Iridium Spark Plugs feature ultra-fine 0.6mm iridium electrodes and a 360° laser weld for superior ignitability, durability, and up to 4X longer service life compared to standard copper plugs. Pre-gapped and nickel-plated for easy installation, these plugs are engineered for modern GDI engines, delivering smoother performance and improved fuel efficiency.
| ASIN | B0792LVCZW |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | 99,369 in Automotive ( See Top 100 in Automotive ) 558 in Car Spark Plugs |
| Brand Name | Bosch |
| Compatible with Vehicle Type | Car, SUV, Truck |
| Core Material | Iridium |
| Customer Reviews | 4.6 4.6 out of 5 stars (644) |
| Gap Size | 0.6 Millimeters |
| Global Trade Identification Number | 00028851010382 |
| Item Type Name | Up to 4X Longer Life (4 Pk) Acura; Chrysler; Ford; Honda; Infiniti; Jaguar; Lexus; Mercedes-Benz; Mitsubishi; Nissan; Subaru; Toyota +More |
| Item Weight | 197 g |
| Manufacturer | Bosch |
| Manufacturer Part Number | 9603 |
| Model Number | 9603 |
| Thread Size | M30 |
| Top Material Type | Nickel |
| UPC | 028851010382 |
| Unit Count | 4.0 count |
M**K
2012 2.5 Toyota engine running smooth, exceeding freeway mileage rating in mixed driving, 80000 miles with Carfax reported plug change at 50000 - what difference will replacement spark plugs make? Give it try. $30 and a half hour of work. Old ones were factory spec and visibly but not terribly crusty/worn, so maybe Carfax was wrong about the early replacement by the former owner; still, oem are rated for 100k-120k. Result? Perceptibly smoother engine; 100 lower idle RPM; 1.5 mpg improvement. So yeah, significant improvement. Moral: a good DIY project but if I had been faced with a $300 shop estimate…. Observation: those casual mechanics hanging looking to install basic parts around car parts shops probably do more to keep 7-year + vehicles on the road than dealerships who think in terms of $300-$500-$700 price points.
A**N
Works well as it is supposed to do..
M**N
تاكد انه مخصص لسيارتك
D**R
I hadn't replaced the spark plugs in my Toyota Corolla for over 15,000 km and though I should, even though I had no issues. Interestingly I removed the old ones which were identical to these that I just purchased. Obviously I made the right choice again without knowing it. Car continues to run great with 171,000 km.
D**O
Excelente cálidad que ofrecen. Hecho en Alemania, coche tiene más potencia y rinde más la gasolina.
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