Genuine Original Laser Platinum Spark Plug 3587 PLTR6A-10G delivers unmatched durability with advanced laser-welded platinum technology for superior conductivity and extended lifespan. Precision-engineered for Cadillac CTS, STX, STS, and Malibu, ensuring perfect fitment and optimal engine performance.

High-performance iridium-enhanced center electrode resists corrosion and reduces misfires, while the triple-seal design prevents combustion gas leakage. Ideal for high-mileage vehicles seeking fuel efficiency and smoother acceleration.

Exclusive nickel-plated shell provides anti-seizing protection, compatible with both standard and turbocharged engines. Manufactured to OEM specifications, guaranteeing factory-grade reliability. Buy in bulk for wholesale pricing and global shipping options.