Pump 1 Stage R/S Std. Vol. 1.2in Body

The Pump 1 Stage R/S Std. Vol. 1.2in Body from Peterson Fluid is a professional-grade oil pump engineered for wet sump lubrication systems in automotive and light-duty engine applications. This single-stage, standard-volume pump delivers reliable circulation at 1.200 inch pressure ratings, making it an ideal replacement or upgrade for builders, mechanics, and enthusiasts working with universal engine platforms. Designed for external mounting on the passenger side, this pump supports consistent oil delivery across a wide range of engine configurations without requiring custom fabrication.

Built to Peterson Fluid's established standards, the Pump 1 Stage R/S Std. Vol. 1.2in Body employs a proven single-stage rotor design optimized for standard volumetric displacement. The 1.200-inch pressure specification ensures adequate flow rates for typical passenger vehicle engines while maintaining system efficiency during cold starts and high-RPM operation. At 4.25 pounds, the compact footprint (10.3 x 8.5 x 12.2 inches) allows straightforward installation in engine bays with space constraints, and the universal design means it accommodates various bolt-hole patterns common to R4 mounting configurations. External pump mounting eliminates internal sump modifications, preserving engine block integrity and simplifying serviceability.

This pump is best suited for engine builders, classic car restorers, and performance enthusiasts who need dependable oil circulation in wet sump applications without the complexity of high-flow or multi-stage designs. Real-world installations include street-driven hot rods, restorations, and light-duty truck builds where standard flow meets budget and packaging requirements. Verify your engine's bolt pattern and pressure relief valve compatibility before purchase; while the universal design accommodates most R4 platforms, adapter kits may be required for specific engine families. Pair this pump with appropriate oil coolers and filtration systems to maximize component life and engine reliability.