Upgrade your Nissan Patrol TB45 or TB42 engine with Crow Cams’ standard replacement RB30 dual valve springs (5840-12). Designed as an essential upgrade when fitting a Crow Cams performance camshaft, these springs help you unlock your engine’s full potential. Available individually or in sets of 12 sets of 8, these high-quality aftermarket springs are built by Crow Cams to ensure reliable performance and durability. Enhance your motor’s efficiency and power with this trusted upgrade.
