HKS 50003-M45HL Super Fire Racing Spark Plug M45HL Iridium (4 Pack)
HKS Super Fire Racing Spark Plug M45HL (50003-M45HL) 4 Packs
Genuine HKS M-Series Super Fire Racing spark plug designed for stable ignition, durability, and reduced carbon buildup under demanding performance conditions.
KEY FEATURES
-
0.6mm iridium alloy center electrode for strong ignition and long service life
-
Platinum chip outer electrode for durability
-
Short-type anti-vibration outer electrode design
-
Thermal Edge + Spark Support Gap features help reduce carbon deposits
SPECIFICATIONS
-
Brand: HKS
-
Part Number: 50003-M45HL
-
Series: Super Fire Racing (M-Series)
-
Plug Type: HL Type
-
Thread / Reach: 12mm x 26.5mm
-
Hex Size: 14mm
-
Heat Range: 45 (HKS heat range)
-
Quantity: Set of 4
WHAT’S INCLUDED
-
(4) HKS Super Fire Racing Spark Plug (50003-M45HL)
FITMENT & COMPATIBILITY
Spark plug fitment depends on your engine’s required thread/reach, seat type, heat range, and tune/setup. Confirm the specs match your application before ordering.







Description
HKS Super Fire Racing Spark Plug M45HL (50003-M45HL) 4 Packs
Genuine HKS M-Series Super Fire Racing spark plug designed for stable ignition, durability, and reduced carbon buildup under demanding performance conditions.
KEY FEATURES
-
0.6mm iridium alloy center electrode for strong ignition and long service life
-
Platinum chip outer electrode for durability
-
Short-type anti-vibration outer electrode design
-
Thermal Edge + Spark Support Gap features help reduce carbon deposits
SPECIFICATIONS
-
Brand: HKS
-
Part Number: 50003-M45HL
-
Series: Super Fire Racing (M-Series)
-
Plug Type: HL Type
-
Thread / Reach: 12mm x 26.5mm
-
Hex Size: 14mm
-
Heat Range: 45 (HKS heat range)
-
Quantity: Set of 4
WHAT’S INCLUDED
-
(4) HKS Super Fire Racing Spark Plug (50003-M45HL)

















