Features & Benefits:
LIFESPAN / DURABILITY | Iridium alloy is 6X harder and 8X stronger than Platinum
Iridium with Rhodium Center Electrode -- DENSO uses the highest concentration of Iridium of any spark plug and outperforms in the most severe engine temperatures, resisting oxidation and voltage wear for over 100,000 miles.
Platinum Ground Electrode -- extends the life of the plug by resisting gap erosion.
Patented 360-Degree Laser Welding -- creates the highest quality bond for structural support of the center electrode.
PERFORMANCE / IGNITABILITY
0.4 mm Fine Wire Iridium Center Electrode -- achieves higher ignitability and requires lower spark voltage to enable high-response driving with fewer misfires. As a result, acceleration improves in comparison with normal plugs.
EFFICIENCY / FUEL ECONOMY
Twin Tips ① -- allow the spark plug to create the fastest and largest spark concentration and explosion, which translates into more power and superior fuel economy.
① Standard Tip (Left) vs. DENSO Twin-Tip (Right) Animated comparison of spark size and speed
Which DENSO Spark Plug Is Right For You?
Material / Series
Lifespan / Durability
Performance / Ignitability
Efficiency / Fuel Economy
Copper / Nickel U-Groove
★ ★ ★
Platinum Twin Tip
★★★★ ★★ ★★
Double Platinum
★★★★★ ★★ ★★
Iridium Twin Tip
★★★★★★ ★★★★ ★★★
Iridium Power
★★★★ ★★★★★ ★★★
Iridium Long Life
★★★★★★ ★★★★ ★★
Videos
Why Choose DENSO Iridium TT? VIDEO
How To Replace DENSO Spark Plugs VIDEO
Alternate/OEM Part Number(s)
{Alternate Inventory Numbers: IK20TT}OEM / Interchange Numbers: 000018BP03, 000018F285, 000018KJ11, 000018KJ13, 0031597503, 0031597803, 0041591403, 06H905601A, 06H905611, 06H905621,
... Show All 0948200427, 0948200429, 0948200494, 0948200508, 0948200510, 0948200548, 0948200550, 0K01C18110, 0K23A18110, 0K2AA18110, 101000003AB, 101000004AA, 101000004AB, 101000016AA, 101000033AA, 101000035AA, 101000035AB, 101000035AH, 101000035HJ, 101000041AC, 101000051AA, 101000054AD, 101000063AA, 101000063AC, 101905607, 101905611, 101905611A, 101905615A, 101905616, 101905621A, 101905621B, 101905631B, 101905631H, 101905640, 101905640A, 101905640D, 1110985Z00, 1110985Z10, 1110986Z20, 12120030548, 12120032134, 12120032135, 12120037607, 12120037608, 12120141871, 12122158252, 12129059209, 12129059795, 12129063428, 12129064617, 12129064619, 12129069877, 12129071003, 12290PGEA01, 12290PGEA02, 12290PNDA01, 12290PNDA02, 12290RB1003, 12290RB1004, 12610767, 12787099, 1822A002, 1822A069, 1881408061, 1881411062, 1882311091, 19185432, 19302724, 224010B016, 224011P116, 224011W616, 2240120J06, 2240127N16, 2240127N66, 2240140P16, 2240140P66, 2240150Y06, 2240153J06, 224017B006, 2240185E16, 2240197E16, 2240197E66, 224019E016, 22401AA310, 22401AA370, 22401AA450, 22401AA530, 22401AA531, 22401AA540, 22401AA550, 22401AA65A, 22401AA730, 22401AA731, 242229606, 25108074, 25186682, 2723440, 2740018110, 307313830, 32000118, 32009439, 33003862, 4444741, 4501029, 4671057, 5159713AA, 5269556, 5269897, 5269899, 55564215, 55564962, 55571391, 55580961, 55585534, 56028179, 5614257, 8251080740, 86426600, 86920700, 86920710, 88901007, 88969636, 88969637, 8943283720, 8943283740, 8970129280, 8970129300, 9008091116, 9008091180, 9008091181, 9091901166, 9091901178, 9091901179, 9091901180, 909190118083, 9091901194, 9091901195, 9091901210, 9091901211, 9091901237, 90919C1001, 90919C2002, 91171719, 91173854, 9146367, 9188681, 9195109, 9399866, 94328372, 94849777, 96068562, 96068563, 96068564, 96130723, 96476119, 980795614G, 980795614H, 980795614J, 980795614N, 980795614P, 980795615G, 980795615H, 980795615J, 980795615N, 980795617S, 980795617T, 9807956A5H, 9807956A7H, 9807956A7S, 9807B5615W, 9807B5617W, 9807B561BW, 9807B561CW, 9807B56A5W, 9807B56A7W, 99917010390, 99917019290, 99917019590, 99917020190, 99917020490, 99917020491, 99917020791, 99917021090, 99917021890, 99917022190, 99917022790, AGSP33C, AI3923, BP0318110, BP0418110, BP1218110, EBC11480, EBC8143, F28518110, F28618110, JE4318110, JE4418110, KJ1118110, KJ1218110, KJ1718110, KJ1818110, M04671057, M05269899, MD313443, MD321878, MD322771, MD378582, MN119487, MN163236, MN163807, MR984646, MR984943, MS851336, MS851502, S2000RC9YC, SP000RC9YC, SP00QC9MC4, SP0RC8PYP4, SPZFR6F11G, XP3923, XP5224, ZAP121200, ZM0218110, ZVP121086C Show Fewer
Warranty Information
Warranty Information:No Warranty
CAPA CERTIFIED or NSF CERTIFIED
CAPA Certified or NSF Certified parts bear the seal of independent, third party organizations guaranteeing fitment and quality equal to original equipment. These parts may be required if your insurance company is paying for the repair.
Specifications
Thread Diameter
14.0 mm
Hex Size
16 mm
Center Electrode Core Material
Copper
Center Electrode Tip Material
Iridium
Ground Configuration
Twin-Tip
Ground Electrode Core Material
Nickel
Ground Electrode Quantity
1
Ground Electrode Tip Design
Platinum Twin-Tip
Manufacturer Heat Range
20
Reach
19.0 mm
Resistance
5000.0 oh
Seat Type
Flat
Pre-Gap Size
1.0 MM
Which DENSO Spark Plug Is Right For You?
Videos
