Laser Iridium Spark Plugs
ITR4A15
Box of 4
Type 5599
Mercury Part Number: 8M2018369
Fits 2001 & newer MCM/MIE 4.3L, 5.0L, 5.7L & 6.2L MPI engines with ECM 555
Original equipment on many late model applications Iridium at the fine-wire center electrode and platinum at the ground electrode provides maximum durability and performance The platinum at the ground electrode adds extra protection against plug wear and gap erosion
Product Code: 41-ITR4A15