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DENSO 5357  
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DENSO 5357 Specifications
Center Electrode Core MaterialCopper
Gap Size1.1 MM
Ground ConfigurationStandard
Ground Electrode Core MaterialNickel
Ground Electrode Quantity1
Ground Electrode Tip DesignTapercut, U-Groove
Hex Size16.0
Manufacturer Heat Range16
Reach19.00 mm
Seat TypeFlat
Thread Diameter14.00 MM
Iridium Power
Iridium Power« best demonstrates its performance improvement during acceleration. The world's smallest center electrode and specially shaped ground electrode deliver maximum spark energy while withstanding temperatures greater than 4000║ F. These features combine to achieve higher ignitability and require lower spark voltage than ever before. As a result, acceleration improves in comparison with normal plugs.

To increase ignitability, the important point is to let the flame kernel produced by the spark to grow unobstructed. Normally, this can be accomplished by widening the spark gap. However, this causes spark voltage to increase, which has the opposite effect. Iridium Power uses DENSO's patented U-Groove ground electrode to achieve maximum ignitability while minimizing required voltage.

  • Tapered cut, U-Groove ground electrode
  • 0.4mm Iridium Tip
  • Patented 360-degree laser welding assembly process
  • Required ignition voltage reduced
  • Unsurpassed center electrode durability
  • Improved spark ignition for maximum combustion, even with lean air-fuel mixtures

Which Spark Plug Is Right For You?

Material Cost Performance Lifespan Highlights
$$$ · Ultimate Ignitability & Durability
· Fast Throttle Response & Best Cold Starts
$$ · Improved Starts & Acceleration
· More Power & Better Fuel Economy
Double Platinum
$$ · Improved Efficiency
· Good For Waste Spark Systems
$ · Reduced Carbon Build-Up
· Good for Coil-On-Plug Systems
$ · Good Conductor
· Least Durable


How To Replace DENSO Spark Plugs

Additional Resources

More Information about Iridium Power Features and Structure
Alternate/OEM Part Number(s): 000018F287, 000018KJ13, 12129068016, 12129070999, 12582002, 1883911051, 33002750, 4318138, 4504277, 4606823AB, 4609040, 56027275, 56028189, 56028236AA, 56041402AB, 5862052360, 5862052370, 83500411, 93176801, 980795514G, 980795514N, 980795514P, 980795515G, 980795515N, 9807B5515W, 9807B5517W, F28718110, F28818110, KJ1318110, KJ1418110, SP00ZFR5AP, SP0RC12ECC, SP0RC12LC4, SP0RC12LYC, SP0ZFR5F11, SPRC12MCC4, T0714540, ZM0118110

Warranty Information:
No Warranty