Upgrade your 2009-2013 GM Corvette ZR1 LS9 engine with the Boundary Pumps LS9 Sump Rotor and Pressure Rotor, engineered for precision and performance. Designed to fit seamlessly with OEM specs, this upgrade delivers enhanced oiling, improved durability, and race-ready reliability.
Boundary oil pump gears are 100% manufactured in our Dallas, Texas, production facility. We start by quenching our Chromoly billets from extreme heat and then temper them to a tough indestructible core. After machining, we apply our ColdFlow finishing process and complete it to a Mirror Finish. What does all this give you? It gives you a pump with stability over 9000 RPM, proven in excess of 2000whp, with higher efficiency, less friction, and backed by one of the industry’s best warranties.
Oil Pump Gear Features:
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Mirror Finished and Surface Hardened
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Surface Ground gears for the ultimate in fitment and performance
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Indestructible Chromoly core
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Inner and outer gear machined in matched sets
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Our race-inspired gerotor design for flow and strength
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Each set hand, machine, and hardness inspected with Blueprinting Report
LS9-OPG-SUMPROTOR Fits:
2009-2013 GM Corvette ZR1 LS9 Engine
LS9-OPG-PRESSUREROTOR Fits:
2009-2013 GM Corvette ZR1 LS9 Engine
Note:
A LS9 pump can be used in a LS7 engine to create higher flow. However, the crank sprocket must be changed to a LS9.
