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DENSO Iridium Long-Life Spark Plug: OE Performance, SK20R11

(240 reviews)
Part # 3297
1 year warranty
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Product Information

Product Details
Part No. 3297
Warranty Details (1 Year Warranty)
Engineered to meet the highest OE standards for performance, durability, and emissions, this Iridium Long-Life Spark Plug is a game-changer for your vehicle's ignition system. Featuring DENSO's patented Iridium Alloy with a 90% Iridium fine wire center electrode and a platinum ground electrode, it delivers exceptional spark performance and longevity, lasting up to three times longer than conventional plugs. The 360-degree laser welding process ensures a robust bond and structural integrity, even under extreme conditions exceeding 4,000 Deg F. Designed for sustained performance over 100,000 miles, it enhances engine efficiency, providing more horsepower, quicker starts, and fewer misfires under heavy loads. Additionally, its advanced design promotes better fuel efficiency, making it a cost-effective choice for long-term use. With a flat seat type and premium materials, this spark plug is built to endure and optimize your driving experience.

Product Features:
  • Latest OE technology with DENSO's patented Iridium Alloy (90 percent Ir) and fine wire center electrode
  • Platinum ground electrode for extended life
  • DENSO Patented 360 degree laser welding process: Ensuring exceptional quality bond and structural strength with the Iridium Center Electrode
  • Sustained spark performance over 100,000 miles
  • Lasts up to three times as long as conventional plugs
  • Endures extreme temperatures greater than 4,000 degrees F associated with high-performance ignition and special fuel systems
  • Iridium Long Life
  • Enhanced Engine Performance: Enjoy more horsepower, faster and easier starts, and fewer misfires under heavy loads, thanks to the advanced properties of DENSO's Iridium alloy.
  • Fuel Efficiency: The DENSO Iridium Long Life plug helps in better conservation of fuel, making it an economical choice for long-term use.
Specifications
Electrode Core Material:
Copper

Electrode Tip Material:
0.7mm Iridium

Ground Strap Quantity:
1

Insulator Type:
Purified Alumina

Manufacturer Heat Range:
20

Material:
0.7mm Iridium

Reach:
3/4 in

Resistor:
Yes

Seat Type:
Gasket

Thread Diameter:
14 mm

Tip Configuration:
0.7mm Iridium

Type:
Iridium Long Life

Wrench Diameter:
5/8 in
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4.9 out of 5
240 Customer Reviews
95% of respondents would recommend this to a friend
Ratings Distribution
5 Stars
223
4 Stars
13
3 Stars
3
2 Stars
0
1 Star
1
Very good spark plugs!… My engine needed them…Must buy for a Toyota car. OEM Replacemet partChrome don't get you home. but denso's do
Only plug I will usePerfect OEM FitExcellent Plugs. Excellent price.Excellent Plugs. Excellent price.
Pros
16
Easy To Install
14
Improves Engine Efficiency
10
Durable
6
Increases Power
1
Lightweight
Cons
2
Difficult To Install
2
none
1
Hard Install on Toyota V6
1
Rated at 120000 and you
Best Uses
19
Everyday Driving
16
Replacement
3
Performance Driving
Car & Truck
4
Casual Driver
3
Auto Enthusiast
2
Mechanic
1
Competitive Driver
1
Truck Enthusiast
Describe Yourself
10
Casual Driver
6
Auto Enthusiast
3
Mechanic
2
Truck Enthusiast
1
Competitive Driver
Most Liked Positive Review
Excellent Plugs. Excellent price.
These are excellent plugs which normally come standard in newer Toyota cars. I installed these in my 2009 Camry 4 cylinder and also my 2004 Sienna XLE V6. The rear 3 plugs on the Sienna are next to impossible to get changed. What a plus that these plugs don't have to be changed until 100,000 miles again. My originals of these plugs had 90,000 miles on them and I'm sure they still had at least another 25,000 miles left in them at minimum. They were in great condition after 90,000.
Most Liked Negative Review
This is the wrong item for 2010 Toyota Matrix 1.8 liter
I purchased this spark plug online because the advance auto parts system recommended this to be o.e.m. but learned the hard way that this is the wrong spark plug for my vehicle. If you have a 2010 Toyota Matrix with 1.8 liter engine or Pontiac Vibe with the same engine, DO NOT BUY this spark plug because it will not fit. The correct spark plug is SC20R11. Went back to the store to return item and they didnt have the correct spark plugs in stock.
Reviewed by 240 Customers
Very good spark plugs!… My engine needed them…
Verified Buyer -
After replacing my spark plugs, my engine def has a little more pep in it (as you can tell by the photo and the ones I replaced on the right!)
Toyota Camry LE 07
This is the best quality one I found for my car that was also OEM/Denso! My car was shaking a lot and burning every ignition coil. I gave four new Denso Spark Plugs, four new Denso Coils, and changed out two wire terminal harness. Good as new!
Bottom Line Yes, I would recommend to a friend
I Would Buy Again
Verified Buyer -
Pre-gapped and easy to install
They're spark plugs...
Staff Reviewer -
What can I say here? They're spark plugs, replacements for the OEM Iridium plugs in our 4Runner. Unscrew the old ones, screw in the new ones, just be mindful of what you're doing as with any spark plug replacement. They did the job.
Bottom Line Yes, I would recommend to a friend
OEM Correct
Staff Reviewer -
These plugs are the original plug used by Toyota when new. Originals lasted 90,000 + miles. Replaced with Bosch which lasted only 40,000 miles before the Iridium tip disappeared. Hope to get 90,000 out of these.
Bottom Line Yes, I would recommend to a friend
Displaying Reviews 1 - 5Back to Top
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