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⚡ Ignite your drive with precision power and unstoppable spark!
The Denso IU27 Iridium Power Spark Plug features a razor-thin 0.4mm iridium center electrode for maximum ignition efficiency, combined with a U-groove and taper cut ground electrode that accelerates flame growth. Its patented 360-degree laser welding guarantees exceptional durability and performance, making it a top choice for vehicle-specific applications in cars and trucks.

| ASIN | B000CJ04B4 |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #1,946,520 in Automotive ( See Top 100 in Automotive ) #336 in Automotive Performance Spark Plugs |
| Brand | Denso |
| Brand Name | Denso |
| Compatible with Vehicle Type | Car, Truck |
| Core Material | Iridium |
| Customer Reviews | 4.4 out of 5 stars 108 Reviews |
| Gap Size | 0.4 millimeters |
| Global Trade Identification Number | 00042511053632 |
| Included Components | Spark Plug |
| Item Highlight | Replaces 4772. World's smallest 0.4mm iridium tip fires on less voltage - sharper response, 40,000-60,000 mile efficiency. |
| Item Type Name | Spark Plug |
| Item Weight | 0.03 kg |
| Manufacturer | Denso |
| Manufacturer Part Number | IU27 |
| Manufacturer Warranty Description | Includes manufacturer provided warranty |
| Model Number | IU27 |
| Number of Items | 1 |
| Number of Packs | 1 |
| OEM Equivalent Part Number | 09482-00458-SUZUKI,09482-00459-000-SUZUKI,09482-00459-SUZUKI,670.4.016.1B-DUCATI,90793-20034-YAMAHA,9079E-ND045-YAMAHA,9079E-ND059-YAMAHA,9079Q-30501-YAMAHA,92070-1143-KAWASAKI,92070-1144-KAWASAKI,92070-1148-KAWASAKI,92070-1150-KAWASAKI,92070-1151-KAWASAKI,947-00003-07-YAMAHA,947-00003-19-YAMAHA,94700-00319-YAMAHA,94701-00318-YAMAHA,94701-00410-YAMAHA,94703-00307-YAMAHA,94703-00315-YAMAHA,94703-00… |
| Thread Size | M14 x 1.25 |
| Top Material Type | Iridium |
| UPC | 042511053632 |
| Unit Count | 1 Count |
| Vehicle Service Type | Car, Truck |
J**.
YOUR BIKE WILL LOVE YOU!
Spend the extra $3 on these instead of NGK, Irridium Densos will wake your bike up. Clean idle, no bog, and less foul, NICE!
M**A
Excellent upgrade for the stock spark plugs
Excellent upgrade for the stock spark plugs. I already had installed a full exhaust system, and these plugs plus a K&N air filter complete the package. Of course had to remap the fuel injection system.
L**S
Fair
No increase I’m power
M**N
Happy with the product...
Super fast delivery and exellent product...works well for Yamaha FZ6N S2! Thanks
D**Z
Five Stars
great performance
A**L
Replaces OEM 2009 Kawasaki ER6N spark plugs
Brought my 2009 Er6n back to life! Easy install.
G**.
Good plug
Good plugs and long lasting
J**N
Five Stars
awesome sparks great quality
M**Z
Super
Great
A**ー
ミドルの加速
スカラベオ250IEに使用。他オーナーがスカラベオに相性がいいと言うことで購入。初速もそこそこで特にミドル以降での加速と伸び感が良い。NGKプラグより根本側がしっかりしていてよさそう。梱包状態もプラグ不良が起こらないよう、箱の中にプラスッチックリングも入っていて配慮を感じた。スカラベオはプラグ箇所が不思議で奥に斜めで入るので、根本側がしっかりしている方が安心感があります。自分は走行中にプラグの根本が折れて今回交換しました。
A**R
great sprark plugs
improved performance for my sport motorcycle.
A**S
Five Stars
Good quality, speedy service.
A**ー
体感はあまり変化ないかも
これまでNGK派でしたが電極0.4mmが気になり初めてデンソーを試してみました。 低速トルクアップを期待しましたが、 体感は変わりませんでした。まぁ、リッターバイクなので不足は無いのですが、社外のエアフィルターに換装した結果のトルクダウンを補うつもりでした。ただ、中高回転の吹け上がりは強烈です。
Trustpilot
1 day ago
1 month ago