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⚡ Ignite your drive with NGK’s spark plug wire set — where power meets precision!
The NGK RC-ZE21 Spark Plug Wire Set features 4 copper wires with variable pitch winding for ultra-low resistance and superior EMI/RFI noise suppression. Its high-temp silicone outer jacket withstands temperatures over 482°F, resisting moisture, oil, and cracking. Color-coded and numbered wires ensure quick, error-free installation, while corrosion-resistant stainless steel terminals provide a secure, vibration-resistant fit. Engineered to meet or exceed OEM standards, this wire set delivers reliable ignition performance and durability for a wide range of vehicles.
| ASIN | B000IY8OLU |
| Best Sellers Rank | #103,254 in Automotive ( See Top 100 in Automotive ) #23 in Car Ignition Cables |
| Brand Name | NGK |
| Cable Type | Copper |
| Color | Blue |
| Compatible Devices | Ze21 Vehicles |
| Compatible Phone Models | No Compatible Phone Models |
| Connector Gender | Male-to-Male |
| Connector Type | Spark Plug Terminals |
| Customer Package Type | standard packaging |
| Customer Reviews | 4.7 4.7 out of 5 stars (859) |
| Global Trade Identification Number | 00087295091609 |
| Included Components | 4 Wires (Coil Lead N/R) |
| Indoor Outdoor Usage | Outdoor |
| Item Shape | Round |
| Item Type Name | Spark Plug Wire Set |
| Item Weight | 0.01 Ounces |
| Manufacturer | NGK |
| Maximum Voltage | 12 Volts |
| Model | RC-ZE21 |
| Model Name | NGK Spark Plug Wire Set |
| Number of Items | 1 |
| Number of Pins | 2 |
| Other Special Features of the Product | Magnetic |
| Outer Material | Silicone |
| Recommended Uses For Product | Improving engine performance in automotive and other internal combustion applications |
| Specification Met | OE |
| UPC | 087295091609 |
| Unit Count | 1 Count |
N**D
Nice wire set. Easy to install on my 2000 Miata SE and looks good too. Goes nicely with new NGK spark plugs.
T**H
Was advertised to fit a Mazda 626 2000 2.0lt, but several of the leads are to short, so the set is useless
C**Y
5/5 Genuine NGK Product. Quick and easy installation process. Was having idling issues with my 91 NA Miata. Misfiring was causing the engine to die. Changed spark plugs and improved by a large margin but was still trying to die. Purchased a new wire set and installed in about 10 minutes, immediately fixed the issue. Now the car is running better than ever.
C**K
The airbag light on a 1994 Mazda MX5 MK1 intermittently illuminated. Not ideal if you wish to sell the car, let alone get it through an MOT. I changed the spark plugs, replaced the air filter, and replaced the old(ish) ignition leads with these RC-ZE21's. Success! Turn ignition to on, airbag warning illuminates (as it should) and remains OFF. The vehicle starts faster, feels better & hopefully will sell!
J**C
Works like a charm, easy install. It's authentic NGK and so far works great on my NB miata. Will update if there's anything but I don't have any doubts of the product.
Trustpilot
5 days ago
1 week ago