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Spark Plug; Iridium TT; OE-Replacement; Resistor; Copper; Iridium Rhodium Alloy; Standard; Single
For over 60 years, DENSO has been leading the way bringing new technology to drivers around the world. DENSO revolutionized spark plug design with our U-Groove spark plugs, and DENSO pioneered Iridium technology for spark plugs. The end result is a full line of spark plugs designed for a wide range of applications. Iridium and platinum technologies combine with our patented 360 Degree laser welding process to create a plug with a lifetime over 100,000 Miles. Improved Ignitability DENSO's TT or "Twin-Tip" technology promotes the largest spark energy concentration and explosion, which translates into improved acceleration and economy. The Iridium TT features the world's smallest 0.4 Millimeter Iridium center electrode and 0.7 Millimeter needle tip ground electrode, which minimizes spark interference and thus maximizes ignitability. The result is the best performance you can buy, with better power, Torque, and fuel economy than any other spark plug.
| Feature | Details |
|---|---|
| Resistor | Yes |
| Electrode Type | OEM |
| Electrode Core Material | Copper |
| Electrode Tip Material | Iridium Rhodium Alloy |
| Insulator Type | Projected |
| Thread Size (IN) | 0.551 Inch |
| Quantity | Single |
| Reach | 1.043 Inch |
| Seat Type | Gasket |
| Wrench Diameter | 16 Millimeter |
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We assure you that we ship all the parcels received on the same day till 12 pm standard central time.
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All orders are free of shipment costs. The cost mentioned on the website is for getting it to your doorstep.
Please do get in touch with our customer support as they may be able to provide you with a return label which will cost you much less. But if you still need to send an item back, here is our shipping address.
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| If Picked Up On | Will be delivered by | ||||||
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| Thursday | Fri | Sat | Sun^ | Wed | Thu@ | Fri@ | Mon= |
| Friday | Sat | Sun^ | Mon | Thu | Fri@ | Mon@ | Tue= |
| Saturday | Tue* | Wed | Thu | Fri | Mon@ | Tue@ | Wed= |
| Sunday | Tue** | Wed | Thu | Fri | Mon@ | Tue@ | Wed= |
*Sunday^ delivery if the shipper is enrolled in weekend spotted trailer pickups
**Monday delivery if the shipper is enrolled in weekend spotted trailer pickups
^Monday if not a Sunday eligible ZIP code
@ The following week
= Earliest possible delivery the following week
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Bolted right onto my 5x114.3 Toyota with the 60.1 hub—no rings needed and zero vibration. ET38 gives a tidy, slightly flush look without rubbing. The silver finish is even and easy to keep clean, perfect for daily driving.
Ride quality surprised me—very smooth for 20s. Truck feels stable at 75 mph and the satin finish is uniform and easy to maintain.
Arrived well padded and the install was straightforward. Torque held, no shakes, and brake dust wipes off in seconds.
Bought these for my VW Jetta and I’m impressed. The ET40 offset sits just right—flush but not sticking out. The finish seems durable and hasn’t chipped at all. Ride feels slightly tighter, in a good way. Docking half a star only because packaging could've been better.
Solid quality and stylish design
Mounted these on my Celica GT and they look phenomenal. The wider setup gives the car a meaner look without rubbing. The matte black finish is rich and durable. Half a star off because I wish the packaging included extra protection, but the wheels themselves arrived perfect.
I bought these for my Toyota GT86 and I'm really impressed by the build quality. They're strong, lightweight, and balance extremely well. Matte black finish hides dust and still looks sharp after washes. Took off half a star because shipping was a bit slow, but the wheels themselves are flawless.
Installed these on my Toyota GT86 and the difference is amazing. The stance improved immediately, and the gold color contrasts beautifully with my white paint. Wheels balanced easily and feel strong. Docking half a star because I wish they came with matching gold center caps.
Put these on my Kia Optima and I’m really satisfied. The finish is flawless and hides brake dust very well. Car feels smoother on the road and the wheels balanced easily. Docking half a star only because I wish they included matching center caps.
Bought these for my Mazda 2 and they look fantastic. The black and machined finish gives a sporty yet classy appearance. Wheels balanced easily and feel solid on the road. Removed half a star only because I had to buy separate hub rings, but the wheels themselves are excellent.
Mounted these on my Toyota GT86 and they look absolutely gorgeous. The gold pops in sunlight but still looks classy. Handling feels slightly sharper too. Took off half a star because I expected better packaging, but the wheels arrived flawless.
Bought these for my Jeep Patriot and they suit the vehicle perfectly. The combination of gunmetal and machined accents looks high-end. Wheels balanced easily and feel solid on the road. Half a star off only because shipping took longer than expected, but product quality is excellent.
Installed these RTX Concorde Satin Black wheels on my Audi A3 and the difference is huge. The 5x112 fitment is perfect, no hub rings needed thanks to the 66.6 bore. The satin black finish gives a refined but sporty look. Car drives smooth and balanced at all speeds.
Installed the RTX Ulsan Satin Black wheels on my 2020 Hyundai Elantra and they look absolutely factory-fresh but better. The satin black finish gives a clean, premium look. Fitment with ET38 is perfect and the CB67.1 sits snug without any issues. Zero vibration and smooth driving.
Clean look and perfect OEM+ upgrade
