Durability of an OE style plug combined with Power & Torque of high performance.
Product Features:
0.4mm Iridium Center Electrode: World's Smallest Diameter that maximizes firing potential
0.7mm Needle Tip Ground Electrode: Promotes higher spark energy and less heat quenching
DENSO Patented Optimized Iridium-Rhodium Alloy Formula: Highest concentration of Iridium vs. competitors for greater durability
DENSO Patented 360 degree laser welding process: Ensuring exceptional quality bond and structural strength with the Iridium Center Electrode
Durability of an OE style plug combined with Power & Torque of high performance.
Withstands temperatures greater than 4000 Fahrenheit
Iridium TT
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4.69 out of 5
506 Customer Reviews
77%of respondents would recommend this to a friend
Ratings Distribution
5 Stars
426
4 Stars
48
3 Stars
5
2 Stars
8
1 Star
19
Pros
3
Improves Engine Efficiency
3
Increases Power
2
Easy To Install
1
Durable
1
NONE
Cons
1
CAUSED MISFIRE AN POSSIBLE ENGINE DAMAGE
1
None
1
Need To See Better Mpg
1
Do not work right 2 bad out of 7 is not good
Best Uses
3
Everyday Driving
2
Replacement
1
IN THE GARBAGE CAN
1
Replacement Plug
Describe Yourself
2
Auto Enthusiast
2
Casual Driver
1
Do It Yourself
Most Liked Positive Review
Great plugs
The owner of the vehicle said that she has experienced much better power and pickup in her Scion XA than she had before. She stated that she had to "punch the gas" in order to get the car to take off from a stop (automatic transmission) prior to the spark plug replacement. After replacing the spark plugs, the vehicle accelerates smoothly from a stop. The owner also says that the vehicle shifts more smoothly and appropriately (for the engine speed) than it did prior to installing these plugs.
Most Liked Negative Review
I'd Buy the product again, but not from Advanced Auto.
4 of 8 gap out of spec. Dense IK20TT spark plugs come 4 packed into one box (4 pack). Yet Advance Auto local store bagged up my online order, handing me one 4 pack an 4 individual boxed (total of 8). I mention this to the store manager, that these 4 singles were likely returns and defective (bent or gap out of spec). He said no they opened the 4 packs for inventory purposes. So I took them, as they said they didn't have anymore in the store. Get then to my shop and inspect. Sure enough the 4 signals are out of spec. NOT HAPPY!. Now I'll need to head back to Advanced Auto, another 30 minutes out of my day for parts run. I called Advance first, so they could get more in. They said they call when in about 3 hours when in. Two days later still no call from Advanced Auto. So I called, they were in. So I took back the 4 bad to just swap out, they would not swap. They refund me the internet purchase back to method of payment. Now I need to wait 3-7 days for that credit to hit, and give my credit card again to buy 4 more. Tying up my funds and costing me interest on the float. If that's not bad enough. Advance Auto Manager now charge $10 more for same spark plugs, than he refunded me. The internet price with discount and my Speed perks bucks no longer applied. Good by Advanced Auto.
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What's the quantity of the DENSO Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip listed for $12.99 ?
Is this 1 spark plug included or 4 spark plugs
Verified Reply - Solomon
Hi Nisha, happy to help you! This DENSO Iridium TT Spark Plug (Part # 4702) is sold individually.
Hello. Will this work for 2006 Toyota passo? Vin: KGC10-0114028
Verified Reply - John the Car-Doc
No, Alex. This DENSO Spark Plug Iridium TT (IKH20TT) - Part # 4704 does not fit your 2006 Toyota Passo. The exact fit spark plug for your vehicle is unavailable online. I'd recommend that you visit the nearest Advance Auto Parts store to check the availability of the product.
Is this okay for my 1992 GMC Sonoma 2.5L or will it hurt my engine?
Verified Reply - John the Car-Doc
Hi Aaron, I'm glad to assist you! This DENSO Spark Plug Iridium TT (ITF20TT) - Part # 4716 is an exact fit for your 1992 GMC Sonoma 2.5L.
Is this okay for my basic 2.5 motor or will it be an issue?
Verified Reply - Solomon
Hi Aaron, happy to help you! Since you didn't mention the specific vehicle, it's hard to tell for sure. To give you the correct information I would need the year, make, model and engine size of the vehicle.
Well things work in a Toyota Tacoma 2017 3.5 V6 engine
Verified Reply - Steve
Hi Ed, I'm glad to help you! This DENSO Spark Plug Iridium TT (Part # 4705) is an exact fit for your 2017 Toyota Tacoma 3.5L 3456CC V6 engine.