Skip to search

Shopping from US? View this page in English with prices in USD.

Switch
JDM Parts     Bestsellers     New arrivals     Limited Time Sale     Marketplace     80,838 Items
Japan : 11/06 01:06   EN
Europe, UK: Wednesday, Nov 11
USA: Monday, Nov 9
Australia: Wednesday, Nov 11
Asia: Tuesday, Nov 10
UAE: Tuesday, Nov 10

Order within 22 Hours 53 mins with Scheduled Delivery. If you place an order within this time, We will ship on Monday, Nov 9 2026. This delivery time is calculated by DHL & Fedex. You can check the exact delivery date on checkout page.

Buyer Protection

Full refund if not genuine. Full or partial refund, if the new item is not as described.

Write a review!

No reviews on this item...

     Description (2,807 characters)
[Screw part φ14×21.5mm/Wrench 20.8mm] [Heat range equivalent to NGK No. 10/For rotary engines]
・This is HKS's Super Fire Plug Type-M, 50003M50RE.
・This is the strongest plug, enhanced by the selection of materials and a newly designed shape that strengthens ignition performance, durability and fouling resistance, bringing out the performance of tuned engines and also showing effect on normal engines.
・By adopting a 0.6mm iridium alloy center electrode, the required voltage is reduced, and combined with the platinum square tip ground electrode, it improves ignition performance and has excellent durability, and the tip is shortened and tapered to secure the volume of space.
・By providing a thermo edge + auxiliary spark gap at the tip of the insulator, a minute discharge is generated to burn off accumulated carbon and prevent misfires that occur in various combustion environments.
・Furthermore, since rotary engines have different performance requirements than reciprocating engines, a specially designed RE type with a storage shape for the platinum ground electrode is used to ensure reliable ignition.
・Manufacturer compatibility is here HKS SUPER FIRE RACING M Series LINE UP Plug type Thread size Wrench size Heat range Part number Set of 4 JIS type φ14×19mm 16mm Equivalent to NGK No. 7 50003-M35 50003-M35-4 Equivalent to NGK No. 8 50003-M40 50003-M40-4 Equivalent to NGK No. 9 50003-M45 50003-M45-4 ISO type φ14×19mm 16mm Equivalent to NGK No. 7 50003-M35i 50003-M35i-4 Equivalent to NGK No. 8 50003-M40i 50003-M40i-4 Equivalent to NGK No. 9 50003-M45i 50003- M45i-4G type φ14×19mm 20.8mm NGK equivalent to #7 50003-M35G 50003-M35G-4 NGK equivalent to #8 50003-M40G 50003-M40G-4 NGK equivalent to #9 50003-M45G 50003-M45G-4X type φ12×19mm 16mm NGK equivalent to #8 50003-M40X 50003-M40X-4XL type φ12×26.5mm 16mm NGK equivalent to #9 50003-M45XL 50003-M45XL-4 NGK equivalent to #8 50003-M40XL 5000 3-M40XL-4 Long reach type φ14×26.5mm 16mm Equivalent to NGK No. 7 50003-M35iL 50003-M35iL-4 Equivalent to NGK No. 8 50003-M40iL 50003-M40iL-4 Equivalent to NGK No. 9 50003-M45iL 50003-M45iL-4 HL type φ12×26.5mm 14mm Equivalent to NGK No. 8 50003-M40HL 50003-M40HL-4 Equivalent to NGK No. 9 50003-M45HL 50003-M45HL-4 Equivalent to NGK No. 10 50003-M50HL50 003-M50HL-4 Conical Sheet Long Reach φ14×25mm 16mm Equivalent to NGK No. 7 50003-M35LF 50003-M35LF-4 Equivalent to NGK No. 8 50003-M40LF 50003-M40LF-4 RE Type φ14×21.5mm 20.8mm Equivalent to NGK No. 9 50003-M45RE 50003-M45RE-4 Equivalent to NGK No. 10 50003-M50RE 50003-M50RE-4 Equivalent to NGK No. 10.5 50003-M525RE 50003-M525RE-4
Product Category Claire Online Shop Parts Electronic Parts Spark Plug Single Item Car, Motorcycle, Bicycle Automotive Ignition System Parts Spark Plug
JAN/ISBN Code: 4957266720332
Product Code: 50003m50re

Tags:

Electrical cable   USB   Coaxial Cable   Computer network   Seagate   Guide   Fiber-optic cable   Networking cable   Optical fiber   Cable television  


Items Similar to 'Spark Plug' !

Products Similar to 'HKS'

HOT ITEMS

Bestseller
Holbein color pencil 150 colors set
Holbein color pencil 150 colors set

₱ 14,278
Hasegawa 1/20 Sculpture Beauty's No.03 Sporty Unpainted Resin Kit SP521
Hasegawa 1/20 Sculpture Beauty's No....
₱ 2,014
CASIO Oceanus electric wave solar OCW-T150-2AJF silver(N)
CASIO Oceanus electric wave solar OCW-T1...

₱ 28,700
New Model
BANDAI SPIRITS GUNDAM ASSEMBLE STARTER SET 01 (ST01)
BANDAI SPIRITS GUNDAM ASSEMBLE STARTER S...
₱ 2,025
SEIKO Black SND399P (N)
SEIKO Black SND399P (N)
₱ 6,481
CITIZEN CITIZEN ANA-DIGI TEMP reprint model watch black JG2105-93E
CITIZEN CITIZEN ANA-DIGI TEMP reprint mo...
₱ 17,352
TAMASHII NATIONS Jumbo Machinder Brave Raideen, approximately 600mm, PE, ABS, and PVC painted action figure
TAMASHII NATIONS Jumbo Machinder Brave R...
₱ 7,817
CASIO  G-SHOCK  GULFMASTER Radio Solar GWN-1000B-1BJF Black
CASIO G-SHOCK GULFMASTER Radio Solar G...

₱ 29,538
CASIO watch lineage radio wave solar LCW-M100TSE-1AJF men's silver
CASIO watch lineage radio wave solar LCW...

₱ 11,598
New Model
CASIO Lineage Wave Ceptor Radio Solar LIW-M610DB-1AJF Black
CASIO Lineage Wave Ceptor Radio Solar LI...

₱ 13,011
CASIO G-SHOCK FROGMAN radio wave solar GWF-1000-1JF men
CASIO G-SHOCK FROGMAN radio wave solar G...

₱ 30,860
Kotobukiya Illustrator Original: Deceptive Rabbit Standing Bunny by Kafun, 1/7 Scale PVC Pre-painted Figure
Kotobukiya Illustrator Original: Decepti...
₱ 12,464

Latest from Our Blog

Discovery Japan Mall
Experience it better in our app.