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⚡ Ignite your engine’s potential with Bosch’s double iridium spark plugs!
Bosch 9621 OE Fine Wire Double Iridium Spark Plugs combine advanced 360-degree laser welding and ultra-fine iridium electrodes to reduce voltage requirements by 24% and extend spark plug life by 4X. Factory pre-gapped and corrosion-resistant, these plugs are engineered for perfect fit and optimal performance in modern gasoline engines, including GDI technology, delivering enhanced durability, improved fuel efficiency, and hassle-free installation.
| ASIN | B0762GB2TM |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #26,517 in Automotive ( See Top 100 in Automotive ) #157 in Automotive Replacement Spark Plugs |
| Brand | Bosch |
| Brand Name | Bosch |
| Compatible with Vehicle Type | Car, SUV, Truck |
| Core Material | Iridium |
| Customer Reviews | 4.5 out of 5 stars 681 Reviews |
| Gap Size | 0.04 inches |
| Global Trade Identification Number | 00028851034265 |
| Included Components | Spark Plugs |
| Item Type Name | Spark Plugs |
| Manufacturer | Bosch Automotive |
| Manufacturer Part Number | 9621 |
| Manufacturer Warranty Description | Limited |
| Model Number | 9621 |
| Number of Items | 1 |
| Thread Size | 12mm |
| Top Material Type | Iridium |
| UPC | 028851034265 |
| Unit Count | 4 Count |
| Vehicle Service Type | Car, SUV, Truck |
R**R
Near OEM quality at 1/4 cost
Near OEM performance at 25% of the cost! Bosch Quality replaced NGKs/Toyota OEMs. Great value and now the engine is running smoothly! I have seen a slight improvement in my mpg @1mpg overall in mixed driving conditions.
S**H
Quality Spark plugs
Installed in my Mazda 6 and now it's running much better
S**B
Make that motor purr
Inexpensive and added the pep back to a motor that needed some love. Gap was perfect out of the box and the installation went without a hitch. Gas mileage improved by a decent amount, we're averaging about 20 extra miles per tank.
R**S
Quality Spark Plugs
Everyone has their favorites. These were one of three that were recommended for my vehicle. They do not need anti seize on threads. They are pre gapped. Easy install. I checked about anti seize lubricant. Special threads, anti seize not recommended. I checked gap. They all measured to spec. Quality product . Hope this helps and May God Bless !
D**S
Excelente producto y calidad
Excelente producto, llego a tiempo
A**A
Tune up
Great price for the set. Helped make tuning up the car easy
A**E
garbage spark plugs
misfired after 30 minutes of driving cylinder 4 misfire code, left me stranded on the highway with baby in car. “(9621)” at the end of description is a lie, was not compatible with my vehicle even with compatibility test.
P**3
Fairly-priced OEM replacement
Bosch is a pretty reputable brand for car parts. I purchased these because they were fairly priced, came in a four pack, and have a solid reputation. They perform as advertised. Took the old ones out, replaced them with these, torqued them down, continued on with my life.
B**E
Bosch spark plugs
Great quality /value easy install.
A**D
التيما 2021 تركب
ناسبت سيارتي التيما 2021
V**S
Les ceux d'origine chez le concessionnaire sont 64$ chaque
Même qualité que ceux d'origine et le prix beaucoup moins élevé que ceux d'origine
C**S
OE style
Has to wait a while for these coming from the USA, but OE for my vehicle, installed and feel the difference having new plugs
J**R
Excelentes Bujías
Bujías 10/10 muy recomendadas
Trustpilot
1 day ago
2 months ago