12573460 LS Billet Rear Galley Plug Barbell Oil Diverter | General Motors GM, 4.8L 5.3L 6.0L 6.2L, LS1 LS2 LS3, LQ4 LQ9

Function – Installs at the rear of the LS engine block to prevent dirty oil from bypassing the oil filter.Flow Optimization – Smooth fillet design improves oil circulation; thin-shaft valve stem minimizes flow resistance.Easy Removal – Pre-drilled M4×20 threaded hole allows quick extraction with a bolt.Reusable & Durable – Made from aging-resistant aluminum alloy for long-term, maintenance-friendly reuse.

• WIDELY COMPATIBLE: This LS billet rear galley plug and barbell oil diverter fits GM Gen III/IV & Vortec engines: LS1, LS2, LS3, LS6, LQ4, LQ9, L33, L92, L76, L99, LSA, LM4, LSX (4.8L6.2L). Directly replaces OEM #12573460
• BILLET MATERIAL: Machined from 6061-T6 aluminum billet, heat-resistant, corrosion-resistant, and built for extreme engine stress. A far stronger replacement for factory plastic oil galley plug
• EASY INSTALLATION: Pre-drilled M420 threaded holes allow bolt extraction no prying or damage. This reusable rear galley plug lowers maintenance costs and simplifies engine builds
• OPTIMIZED OIL FLOW: Smooth fillets and thin-shaft design minimize flow restrictions. Enhances lubrication efficiency and engine protection. Works as an oil restrictor for high-performance LS builds
• PREVENTS OIL BYPASS: Installs at the rear of the LS engine block to prevent dirty oil from bypassing the oil filter, ensuring cleaner oil circulation throughout the engine system
• REUSABLE AND DURABLE: Made from aging-resistant aluminum alloy for long-term, maintenance-friendly reuse, reducing the need for frequent replacements and lowering overall maintenance costs