Boundary Pumps Pump Assembly Subaru EJ25 2.5L 12mm Billet Gear MartenWear Treated Steel Billet Back Plate

The pump is completely taken apart, all parts undergo ultrasonic cleaning, air blast, and hand inspection.

• The pump is hand de-burred.
• Our industry-leading mirror-finished gear set is used
• It is assembled with our dual-stage heat treated gerotor
• When closing the pump up we use our Billet Steel Anti-Cavitation oil pump cover
• Stainless Torx heads replace the stock fasteners
• All fasteners are torqued to spec
• Loctite applied to fasteners to prevent back out or loosening
• Anaerobic sealant applied to critical areas to boost pump up speed and reduce aeration.
• Assembly lubricant applied to all critical surfaces to get oil flowing fast on startup
• Parts are blueprinted and issued with a specification sheet.

Shims:

• 1 Shim +7 PSI
• 2 Shim +14 PSI
• 3 Shim +21 PSI