LS Oil Pump Primer

The PROFORM LS Oil Pump Primer is a specialized pre-oiling tool designed for GM LS-series engine builders and high-performance enthusiasts preparing new or freshly rebuilt engines for initial start-up. This aluminum-bodied primer features a 3/8-inch drill chuck interface that connects to a standard power drill, allowing you to safely pressurize the oil system before firing the engine for the first time—a critical step that prevents bearing damage and extends engine longevity.

Clear anodized construction provides corrosion resistance while allowing visual inspection of oil flow during the priming process. The compact 3.4 x 3.3 x 6.9-inch profile fits comfortably in engine bays, and the 0.62-pound weight makes it easy to handle during shop work. By circulating clean oil through galleries, bearings, and valve train components before combustion begins, this tool eliminates dry-start conditions that cause rapid wear on fresh engine internals—especially important when engine break-in determines long-term reliability and performance.

LS engine builders, performance shops, and serious DIY enthusiasts restoring or upgrading LS platforms depend on this primer as a non-negotiable step in the build process. Whether you're assembling a truck engine, LSx swap candidate, or race-oriented platform, pre-oiling protects your investment and ensures proper oil delivery to all critical surfaces from the moment ignition fires. This tool is the standard choice among shops that understand that engine longevity begins before the first start.