Driver Side Piston - GM (12699530)

# Product Description Upgrade your heavy-duty truck's engine performance with the GM OEM Driver Side Piston (MPN: 12699530), a genuine left-side piston engineered for Silverado and Sierra 2500 HD and 3500 HD models. This oversized 0.5mm piston is manufactured to strict General Motors specifications, ensuring reliable compression, combustion efficiency, and long-lasting durability in your diesel or gas engine. Built as a factory replacement part, this genuine GM component restores original engine functionality and meets all OEM performance standards. - Genuine OEM Driver Side Piston for GM heavy-duty trucks including Silverado 2500 HD, Sierra 2500 HD, Silverado 3500 HD, and Sierra 3500 HD - Oversized 0.5mm specification designed for precision fitment and optimal engine sealing - Critical engine component that maintains proper compression and combustion for reliable truck performance - Direct factory replacement part engineered and tested to rigorous General Motors quality standards - Authentic GM original equipment manufacturer part backed by General Motors warranty and specifications