Nissan 2.5L QR25DE PISTON KIT w/RINGS 4-Cylinder 16-Valve DOHC 2002-2006 Altima 2002-2006 Sentra SE-R Upgraded pistons custom made Premium piston rings from Japan or USA Standard bore diameter 89.00mm Rings thickness 1st=1.20mm 2nd=1.20mm Oil=2.50mm Aluminum Silicon Pistons Minimizes fractures and cracks Nitrite Hardened Steel Rings Withstands extreme heat More oil passage holes in oil ring groove No more oil gumming up, reducing engine failure Shortened compression distance For resurfacing head &/or block Oversized wrist pin diameter Eliminates replacing rod bushings Easily last 150,000+ miles! Perfect for street & performance cars!
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