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⚡ Ignite your drive with Bosch’s double iridium precision!
Bosch 9654 OE Fine Wire Double Iridium Spark Plugs deliver cutting-edge ignition technology with ultra-fine wire electrodes and 360-degree laser welding, reducing voltage needs by 24% and offering 4X longer life. Designed for modern gasoline engines including GDI, these pre-gapped, corrosion-resistant plugs ensure seamless installation and superior engine performance.




| ASIN | B00HJ6OILA |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #745,790 in Automotive ( See Top 100 in Automotive ) #3,769 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 121 Reviews |
| Global Trade Identification Number | 00028851013734 |
| Included Components | Spark Plugs |
| Item Highlight | Advanced Original Equipment Technology with 4X Life |
| Item Type Name | Spark Plugs |
| Item Weight | 8.16 ounces |
| Manufacturer | Bosch Automotive |
| Manufacturer Part Number | 9654 |
| Manufacturer Warranty Description | Limited |
| Model Number | 9654 |
| Number of Items | 1 |
| OEM Equivalent Part Number | 9654 |
| Thread Size | 14mm x 1.25mm |
| Top Material Type | Iridium |
| UPC | 028851013734 |
| Unit Count | 1 Count |
| Vehicle Service Type | Car, SUV, Truck |
R**T
Better performance
Better burn cycle in the hemi V8, very pleased
M**Y
Sparkly spark-able. Positively ionizing even I would say!
Very nice plugs. Not much to say beyond great. Sparky spark spark. All fine wire plugs seem to add bit of crackle to a well tuned engine over the basic old school Champion plugs. A bit of cornfield, backwoods, WFO seat of the pants feel. Whos a good plug? you are lil Boschy! woof... Oo I mean spark spark! Seriously though. They last forever. If,... you dont run them valve melting lean, or on nitromethane. I discovered the nitro part the hard way. Near instant fail. Poor lil electrode wire just atomizes! Buy the removable core, nitro rated plugs that are rebuildable. Or the cheap $3 champions and throw them out every use/race. Yes you can buy rebuildable plugs, Dont bother looking them up if you have to ask the price...Not for street anyway.
R**N
Pre-gapped ready to Install
Installed in my 2005 GT convertible turbo PT Crusier with a stage 3 ECM tune. 265 Horsepower. Only 38,487 miles on it. Will most likely change them again after 20k. Notwithstanding the fact that these plugs would probably last 100k. Just personal preference.
T**7
Great Spark Plugs
Perfect fit, pre-gapped for easy installation, great product.
P**K
Great plug for hemi
Made hemi run and sound so smooth and quiet. Very pleased with purchase.
B**E
Best plugs for a hemi
Expensive plugs for my ram's hemi but they work well and will last quite long
C**P
The best plug for my turbo pt cruiser..
Look for the best price. This plug should be your last. It is the best I have had in my turbo cruiser...
T**R
Conflicting information
My mechanic said these are not for a 2007 dodge ram 1500.
J**T
Spark plugs.
Purchased these for my hemi. Resolved some spark flutter issues that I was experiencing and feel more responsive in the accelerator pedal. Very pleased. 10/10 would buy again.
D**S
Facile à installer!
Allume bien les l’essence.
J**A
Worth for the Money
Received genuine Bosch Iridium Spark Plugs- 4no.s & fitted to my Skoda Fabia 1.2mpi. Excellent performance, good in mileage & I do recommend this to every Petrol Head Engine. Worth for the Money. Thank you
F**O
An excellent product when it is available.
You have to order ahead of time for availability.
T**N
Scam
False advertising. Each item should contains a pack of 4 as described and made in Germany. I paid 50$ and get 2 made in China with slow delivery. What a scam. Need to return and get my refund fast.
Trustpilot
1 month ago
2 days ago