Wiseco K671M8900AP Nissan QR25DE 2.5L 16V Forged Piston Kit 89mm 10.5:1 ArmorGlide

The Wiseco K671M8900AP is a forged performance piston kit designed for the Nissan QR25DE 2.5L 16-valve engine. Built to Wiseco's exacting standards, this kit features an 89mm bore and a 10.5:1 compression ratio, making it an ideal choice for street performance and light forced-induction applications.

Wiseco's proprietary ArmorGlide skirt coating significantly reduces piston-to-wall friction, improving cold-start wear resistance and long-term durability. This dry-film lubricant coating allows for tighter piston-to-wall clearances while minimizing scuffing and noise during warm-up cycles.

Key Features:

• ArmorGlide skirt coating for reduced friction and improved wear resistance
• 89mm bore diameter for precise fitment
• 10.5:1 compression ratio optimized for naturally aspirated or mild forced-induction builds
• CNC-machined from aerospace-grade 2618 or 4032 aluminum alloy forging
• Designed for the Nissan QR25DE 2.5L 16-valve engine (Sentra and other applications)
• Full-floating pin design for reduced stress and improved longevity
• Includes pistons, wrist pins, locks, and rings

Wiseco is a trusted name in performance engine building, with decades of experience supplying forged pistons to professional racing teams and performance enthusiasts. The K671M8900AP kit delivers the strength and precision needed for reliable high-performance street and track use.