LS Rear Main Seal Holder w/Seal

The LS Rear Main Seal Holder with Seal (MPN 346-9250) is an essential tool for anyone working on LS-platform engine builds, whether in a machine shop or during professional engine assembly. This tool is particularly useful for full engine rebuilds, crate motor swaps, or high-performance setups, ensuring a leak-free crankshaft seal installation.

Designed for precision, the rear main seal holder guides the seal into the block bore accurately, preventing any misalignment or damage during installation. The included seal meets OEM specifications, ensuring compatibility with all LS engine variants, including LS1, LS2, LS3, LS9, LSA, and truck-based LS platforms. The robust design accommodates both gasket and RTV sealing methods, making it versatile for various assembly techniques.

Engine builders, restoration shops, and experienced DIY enthusiasts will find this tool invaluable when working on LS engines. It is particularly beneficial for mechanics performing bottom-end service on LS swaps in vehicles like Camaros, Corvettes, and trucks, providing significant time savings and reliability during installation.