The TRP LS 4X 3-Bolt Camshaft Timing Gear is a factory-style replacement for GM part number 12586481, designed for compatible GM LS-based engines using a 4X camshaft position sensor and 3-bolt camshaft. This timing gear is a great choice for camshaft swaps, 3-bolt cam conversions, timing set replacements, or engine builds requiring a 4X 3-bolt upper cam gear. Features Replaces GM 12586481 4X camshaft timing gear 3-bolt camshaft design Factory-style fit and function Ideal for camshaft swaps and 3-bolt cam conversions Great for stock replacement and performance engine builds Common Applications Designed for compatible Gen IV LS applications requiring a 4X cam sensor and 3-bolt camshaft gear, including aftermarket performance camshaft swaps. This gear is commonly used when converting a compatible Gen IV LS engine from a factory single-bolt camshaft to an aftermarket 3-bolt camshaft while retaining the proper 4X camshaft position signal. What's Included (1) TRP 4X 3-Bolt Camshaft Timing Gear
