About quality and texture - The CR9EHIX-9 spark plug from NGK is a iridium IX plug with a heat rating of 9, made using high quality processes and materials.About the feeling of use - After installing the big bore kit and using the manufacture recommended CR9EH9 standard resister plug without any issues, I decided to give the CR9EHIX-9 iridium IX plug a go to see how it performed and was impressed.Products to buy together - With the spark plug being a regular service item, key products to purchase when carrying out maintenance on my Honda Grom would be crush washers, gaskets and the like as these products are cheap and convenient to have on hand.Difficulty of installation - The installation of the CR9EHIX-9 spark plug is an simple task that took 0.2 of an hour to complete. Some mechanical aptitude and the use of basic hand tools is all that is required to firstly check the gap between the center electrode and the ground electrode and then install the spark plug onto the cylinder head.Cost performance and comparison with other products - I find the cost of all the products NGK sell to great value when compared to what most other companies sell their products for and the CR9EHIX-9 spark plug is no different.About shipping and packaging - With there being no cost difference between sea freight and EMS for the CR9EHIX-9 spark plug, I chose EMS for an earlier arrive date. The part was extremely well protected while being covered in bubble wrap and surrounded with air pillows in a sturdy cardboard box.Any concerns, cautions, or advice when purchasing - Webike Japan is the first place I look to for all my motorcycle needs. From service parts to performance products and even motorcycle gear and apparel, Webike always seem to satisfy my needs in regards to availability and pricing.
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13.2 USD (2,030 JPY) 14.63 USD Save 10%
Delivery Information
In Stock, Ships within 24 hours.
Estimated arrival date around
FITMENT
-
AX-1
89- 250 ND21 89.7- [displacement]250 [number of units required]1
-
CB650F
14- RC83 14.4- [displacement]650 [number of units required]4
-
CBR250RR
90- MC22 90.3- [displacement]250 [number of units required]4
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CBR250 FOUR
86- CBR250F MC14 86.4- [displacement]250 [number of units required]4
See all
HONDA
Product detail
[Stock Number] 4273
[Shape] Screw type
[Size]
Screw diameter: Φ10.0mm
Screw length: 19.0mm
Hexagon dihedral width: Hex 16.0mm
[NGK part number] CR9EHIX-9
[Type] Iridium IX Plug
Plug unit and terminal image: [8-d] See Image 6
[Heat Value] 9
[Compatibility Information] DENSO Compatibility: IUH27/U27FE-ZU9/U27FER-ZU9
YAMAHA OEM part number compatible: 90793-20163/90793-22097
SUZUKI OEM part number compatible: 99000-79K24-H27
Compatible KAWASAKI OEM part number: J4520-IUH27
**Even if you purchase in units of 10 pieces (1 box), it will not be delivered in 1 box.
*Terminals, tightening angle, etc. may differ depending on the model.Please refer to the link for the detailed fitting and installation instructions..
* The image is only for reference. The image shown may differ from the actual product.
Webike has all NGK plugs in stock! .
* The item may be temporarily out of stock due to manufacturer shortages, etc
[Features]
1. Improved acceleration
You can feel the difference between this plug and the standard plug by its quick response to the accelerator pedal opening.Changing to Iridium plugs will improve acceleration.
2. Engine power pup
Iridium plugs increase engine performance.You can enjoy a comfortable ride with a strong power on the uphill.
3. Improved ignitability and startability
Iridium plugs have ultra-fine electrodes that ignite quickly and improve the starting performance of the engine.The idling is stable because of less spark variation.
4. Increased fuel efficiency
Iridium plugs have excellent ignitability, so they burn gasoline efficiently.This plug is both economical and environmentally friendly.
As a premium plug for stock engines, an ultra-fine iridium alloy has been adopted for the central electrode to achieve superior ignitability and greatly improved response.The electrode is thin and sparks fly easily, so the energy is large and the ignitability is improved.It maximizes the performance of the engine.In addition, the thermo edge at the tip of the insulator burns off the attached carbon (burnt debris), prevents the ignition performance of the plug from deteriorating, and maintains high performance.
[Features of Iridium IX plug]
Iridium IX plugs are high performance plugs with a faster combustion spread than general plugs and with a thermo edge at the tip of the insulator to improve plug fouling.
Iridium alloy is used for the center electrode.
The electrodes are finer than those of platinum to improve the ignition performance.In addition, this plug is resistant to carbon contamination by the thermo edge effect.
・The center electrode is very thin and the tip of the outer electrode is tapered.
・Easy to spark and excellent in ignition performance.
・The engine has improved starting performance, acceleration, idling stability, and fuel consumption.
・Since the flame damping effect of the plug electrode is reduced, the ignition performance is improved.
*The effect varies depending on the vehicle.
[About the shape of the plug terminal]
●Select a terminal shape that matches the engine and plug cord installation side.
There are three types of plug terminals: integrated type, separate type, screw type, and punch-and-caulk type.
Mainly, "integral type" and "punch caulking type" are used for four-wheeled vehicles and "screw type" for two-wheeled vehicles, and "separate type" is available for plugs used for both four-wheeled and two-wheeled vehicles.
In addition, the terminal part of the "separate type" can be removed, but the terminal part of the "integrated type" and "punch-and-caulk type" cannot be removed.If you try to remove it forcibly, the terminal part may be broken.
In case of using the "separate type" as the "screw type", remove the terminal nut.
When using the product with the terminal nut attached, make sure that it is not loose, and if it is loose, tighten it lightly with pliers or the like.
| [Features of NGK plug] |
| - This is a super "wide range" plug - |
| The center electrode , The center electrode is a "copper cored" construction with copper sealed to near the tip to allow a large amount of heat to escape quickly. The result is an ultra "wide range" plug that is resistant to burning and smoldering. |
 |
| Comparing the thermal characteristics of plugs with copper cores and plugs without copper cores, the plugs with copper cores have superior thermal characteristics and fouling resistance, and a wider thermal range. |
| ■ Heat value of the plug |
| - High alumina porcelain from New Ceramics is used as the insulator - |
| - Excellent insulation at high temperature and reliable sparking. ・Excellent heat conductivity and prevents seizure. ・High thermal shock resistance (rapid heating and cooling) and excellent mechanical strength. |
| - Strong and airtight in construction - |
| Because the insulator and the main metal fittings are joined by special powder, it is excellent in airtightness and strong in structure. |
| Special Nickel alloy electrodes are used for superior durability. |
 |
| - Corrugations in the insulator ensure good insulation and prevent flashover - |
| During sparking, a high voltage is constantly applied between the terminal and the main unit bracket. High voltages try to leak along the surface of the insulator and flashover is more likely to occur if the required voltage between the spark gaps is high. In order to prevent flashover, insulator corrugations (folds) are provided to increase the insulator surface distance between the terminal and the main fittings to ensure insulation and prevent flashover. |
| What is a flashover... |
| It is a spark between the terminal and the main unit fitting as shown in the image. |
 |
| ■ Flashover |
| ■The advantages of the plug |
Points of Attention
* If there may be an instruction manual included, it will be written in Japanese.
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Fits:HONDA CBR900RR Fire blade 92-99 SC28/SC33 [displacement]900 [number of units required]4, HONDA CBR650F 14- RC83 14.4- [displacement]650 [number of units required]4, HONDA CBR600F 88-00 PC35 reimport [displacement]600 [number of units required]4, HONDA CBR400R 86-88 NC23 86.7-88.1 [displacement]400 [number of units required]4, HONDA HORNET-S PC34 European specification [displacement]600 [number of units required]4
Installed on: HONDA MSX125 (GROM)
Fits:HONDA CBR900RR Fire blade 92-99 SC28/SC33 [displacement]900 [number of units required]4, HONDA CBR650F 14- RC83 14.4- [displacement]650 [number of units required]4, HONDA CBR600F 88-00 PC35 reimport [displacement]600 [number of units required]4, HONDA CBR400R 86-88 NC23 86.7-88.1 [displacement]400 [number of units required]4, HONDA HORNET-S PC34 European specification [displacement]600 [number of units required]4
Installed on: HONDA HORNET250 (CB250F)
Aug 15, 2024
Installed it in my hornet 250, the change in performance was felt without any doubt.Engine has been responding very effectively.Recommending for anyone, Trust NGK original products! Thank you Team Webike, packaging and delivery was in best condition.
View DetailFits:HONDA CBR900RR Fire blade 92-99 SC28/SC33 [displacement]900 [number of units required]4, HONDA CBR650F 14- RC83 14.4- [displacement]650 [number of units required]4, HONDA CBR600F 88-00 PC35 reimport [displacement]600 [number of units required]4, HONDA CBR400R 86-88 NC23 86.7-88.1 [displacement]400 [number of units required]4, HONDA HORNET-S PC34 European specification [displacement]600 [number of units required]4
Installed on: HONDA CBR1100XX Super Blackbird
Dec 1, 2023
i have always used NGK Iridium Plug CR9EHIX-9 4273 spark plugs they are the best for long run.i have used this spark plugs on my honda cbr xx superblack bird 1998 model they work very well no maintainance required.
View Detail
Fits:HONDA CBR900RR Fire blade 92-99 SC28/SC33 [displacement]900 [number of units required]4, HONDA CBR650F 14- RC83 14.4- [displacement]650 [number of units required]4, HONDA CBR600F 88-00 PC35 reimport [displacement]600 [number of units required]4, HONDA CBR400R 86-88 NC23 86.7-88.1 [displacement]400 [number of units required]4, HONDA HORNET-S PC34 European specification [displacement]600 [number of units required]4
Installed on: HONDA HORNET250 (CB250F)
Nov 8, 2023
NGK Iridium Spark Plugs For HONDA HORNET250 (CB250F)
The cost was very good and purchased a set of 4.I used EMS this time and everything arrived within a week. All packaged very well and no damage to anything in the order. Webike added additional bubble wrap for some of the parts to keep everything nice.Thanks Webike
View DetailFits:HONDA CBR900RR Fire blade 92-99 SC28/SC33 [displacement]900 [number of units required]4, HONDA CBR650F 14- RC83 14.4- [displacement]650 [number of units required]4, HONDA CBR600F 88-00 PC35 reimport [displacement]600 [number of units required]4, HONDA CBR400R 86-88 NC23 86.7-88.1 [displacement]400 [number of units required]4, HONDA HORNET-S PC34 European specification [displacement]600 [number of units required]4
Installed on: HONDA HORNET250 (CB250F)
Nov 7, 2023
Good produt.Performance was increased and it lasted a long time.About quality and textureAbout the feeling of useProducts to buy togetherDifficulty of installationCost performance and comparison with other productsAbout shipping and packagingAny concerns, cautions, or advice when purchasing
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