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⚡ Spark your drive with Bosch Double Iridium – where power meets precision!
Bosch 9603 OE Double Iridium Spark Plug delivers superior ignitability with a 360-degree laser-welded ultra-fine iridium wire, reducing voltage requirements by up to 24%. Engineered for 4X longer life than copper plugs, it features corrosion-resistant nickel-plated threads requiring no anti-seize and comes pre-gapped for hassle-free installation. Designed to meet OE standards, it’s compatible with modern GDI engines and a broad range of premium vehicles, ensuring reliable high performance and longevity.
| ASIN | B00515NH4K |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #206,036 in Automotive ( See Top 100 in Automotive ) #1,248 in Automotive Replacement Spark Plugs |
| Brand | Bosch |
| Core Material | Iridium |
| Customer Reviews | 4.6 4.6 out of 5 stars (876) |
| Date First Available | June 1, 2011 |
| Exterior | Machined |
| Global Trade Identification Number | 00028851010375 |
| Item Weight | 0.8 ounces |
| Item model number | 9603_1 |
| Manufacturer | Bosch Automotive |
| Manufacturer Part Number | 9603 |
| Model | Spark Plug |
| OEM Part Number | 9603 |
| Position | Front, Rear |
| Product Dimensions | 1 x 1 x 4 inches |
| Thread Size | 1.25mm |
| Top Material Type | Nickel |
| UPC | 028851010375 |
| Vehicle Service Type | Car |
Q**Q
Good performance and better gas mileage.
The plugs I received were made in Germany. The plugs are almost half the cost of Denso and they perform just as well. I would recommend these plugs.
S**N
Solid, reliable park plugs
I got these for my 2002 GS430 and boy do they help get all the power out of my engine. I have an exhaust leak and trans leak that leads to a laggy bogged down performance, but by swapping out with these plugs yearly I can keep the power more responsive. I tried other plugs, but these seem to do the best for me in my case. Installation was straight forward and these tightened in place great with a little bit of antiseize.
L**.
Great Product
Purchased this product for my 2004 Toyota Tundra and so far it is doing the job as intended. My truck now accelerate as it should without any hesitation. It arrived well packaged and gapped. A great replacement at a great price!
L**A
Justo lo que pedi
J**H
good item
i bought 4 sparks for my friends，because he is not the amazon prime membership，he said it is well for his Camry and more powerfull,just a little expensive. Last year i bought 6 sparks and just costed 23
A**R
Worth the money
My 2004 Toyota Highlander runs smoother and is a good pick-up. So far so good. Best spark plugs ever bought.
F**N
Great
Thank You
T**M
Great Fit for Lexus RX330 2004
Fast delivery and perfect product fits well on my lexus RX 330 model 2004 , i recommend it to Lexus owners as it lasts for a long time.
A**R
Toyota Sienna 2006
B**D
Nice product
S**K
Ok
W**?
Bought these for my 2003 Thunderbird. All of them were used spark plugs. Useless waste of time. Now I have to return them and go through the pain of re-installing the coil covers and repeating the process all over again.
A**.
Details of product’s compatibility specially in accessories & parts is very bad. As these products are only exchangeable it’s a loss of the client. But somehow when I have expressed my issues either the product has been changed or I have been refunded.
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