Premium metal door lock cylinder barrel repair kit designed specifically for BMW 3 Series E46 models (1998-2005). High-grade zinc alloy construction ensures durability and precise fitment for 328i/320/323/325/328/330/M3 variants. CNC-machined components provide smooth operation and enhanced security. Complete left/right side replacement solution with factory-standard tolerances. Ideal for DIY repairs or professional garage maintenance. Includes all necessary hardware for direct bolt-on installation without modification. Corrosion-resistant finish maintains performance in all weather conditions. Exact OEM replacement that restores original locking functionality. Cost-effective alternative to dealership parts with identical quality. Ships in protective packaging to prevent transit damage. Bulk purchase discounts available for auto repair shops.